Glossary
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The terms in this glossary are defined as they pertain to the
Tivoli Storage Manager library. If you do not find the term you
are looking for, refer to other IBM glossaries at this Web site: http://www.ibm.com/ibm/terminology/
This glossary may include terms and definitions from:
- The American National Standard Dictionary for
Information Systems, ANSI X3.172-1990, copyright
(ANSI). Copies may be purchased from the American
National Standards Institute, 11 West 42nd Street, New
York 10036.
- The Information Technology Vocabulary, developed
by Subcommittee 1, Joint Technical Committee 1, of the
International Organization for Standardization and the
International Electrotechnical Commission (ISO/IEC
JTC2/SC1).
- absolute
- A value for the backup copy group mode indicating that a
file is considered for incremental backup even if the
file has not changed since the last backup. See also mode.
Contrast with modified.
- access mode
- An attribute of a storage pool or a storage volume
attribute that specifies whether Tivoli Storage Manager
can write to or read from the storage pool or storage
volume. The access mode can be read/write, read-only, or
unavailable. Volumes in primary storage pools can also
have an access mode of destroyed. Volumes in copy storage
pools can also have an access mode of offsite.
- accounting facility
- A facility that records statistics about client session
activity.
- accounting records
- Files that record session resource usage at the end of
each client session.
- activate
- The process of validating the contents of a policy set
and copying the policy set to the ACTIVE policy set.
- active policy set
- The policy set that contains the policy rules currently
in use by all client nodes assigned to the policy domain.
The active policy set is the policy set that was most
recently activated for the policy domain. See policy
set.
- active version
- The most recent backup copy of a file stored by Tivoli
Storage Manager. Such a file is not eligible for deletion
until a backup process detects that the user has either
replaced the file with a newer version, or has deleted
the file from the workstation. Contrast with inactive
version.
- activity log
- A log that records normal activity messages generated by
the server. These messages include information about
server and client operations, such as the start time of
sessions or device I/O errors. Each message includes a
message ID, date and time stamp, and a text description.
The number of days to retain messages in the activity log
can be specified.
- administrative
client
- A program that runs on a file server, workstation, or
mainframe that allows administrators to control and
monitor the server through administrator commands.
Contrast with backup-archive client.
- administrative
command schedule
- A database record that describes the planned processing
of an administrative command during a specific time
period. See also client schedule.
- administrative
privilege class
- A level of authority granted to an administrator of Tivoli Storage Manager. The privilege class determines which tasks the
administrator can perform. For example, an administrator
with system privilege class can perform any
administrative task. See system privilege class,
policy privilege class, storage privilege class, operator
privilege class, and analyst privilege class.
- administrative
session
- A period of time in which an administrator user ID
communicates with a server to perform administrative
tasks. Contrast with client node session.
- administrator
- A user who has been registered to the server.
Administrators can be authorized to one or more of the
following administrative privilege classes: system,
policy, storage, operator, or analyst. Administrators can
use the administrative commands and queries allowed by
their privileges.
- Advanced
Interactive Executive (AIX)
- An operating system used in the RISC System/6000
computers. The AIX operating system is the IBM
implementation of the UNIX operating system.
- Advanced
Peer-to-Peer Networking (APPN)
- An extension to the LU6.2 peer orientation for end-user
services. See SNA LU6.2 and Systems Network
Architecture.
- Advanced
Program-to-Program Communication (APPC)
- An implementation of the SNA/SDLC LU6.2 protocol that
allows interconnected systems to communicate and share
the processing of programs. See SNA LU6.2, Systems
Network Architecture, and Common Programming
Interface Communications.
- AFS
- Andrew file system.
- aggregate file
- A file, stored in one or more storage pools, consisting
of a group of logical files packaged together. See logical
file and physical file.
- AIX
- Advanced Interactive Executive.
- analyst
privilege class
- An administrative privilege class that allows an
administrator to reset statistics.
- Andrew file
system (AFS)
- A distributed file system developed for UNIX operating
systems.
- API
- Application program interface.
- APPC
- Advanced Program-to-Program Communication.
- application client
- One of the Tivoli Data Protection for application programs installed on
a system. The Tivoli Storage Manager server provides backup services to these
clients.
- application program
interface (API)
- A set of functions that applications running on a client platform can call to store, query, and retrieve objects from
- storage.
- APPN
- Advanced Peer-to-Peer Networking.
- archive
- A function that allows users to copy one or more files to
a storage pool for long-term storage. Archive copies may
be accompanied by descriptive information and may be
retrieved by archive date, by file name, or by
description. Contrast with retrieve.
- archive copy
- A user file that has been archived to a Tivoli Storage
Manager storage pool.
- archive copy group
- A policy object containing attributes that control the
generation, destination, and expiration of archive files.
An archive copy group belongs to a management class.
- archive
retention grace period
- The number of days that Tivoli Storage Manager retains an
archive copy when the server is unable to rebind the file
to an appropriate management class.
- AS/400
- Application System/400.
- assigned capacity
- The portion of available space that can be used to store
database or recovery log information. See also available
space.
- association
- (1) The defined relationship between a client node and a
client schedule. An association identifies the name of a
schedule, the name of the policy domain to which the
schedule belongs, and the name of a client node that
performs scheduled operations.
- (2) On a configuration manager, the defined relationship
between a profile and an object such as a policy domain.
Profile associations define the configuration information
that will be distributed to managed servers when they
subscribe to the profile.
- audit
- The process of checking for logical inconsistencies
between information that the server has and the actual
condition of the system. Tivoli Storage Manager has
processes for auditing volumes, the database, libraries,
and licenses. For example, in auditing a volume Tivoli
Storage Manager checks for inconsistencies between
information about backed up or archived files stored in
the database and actual data associated with each backup
version or archive copy in server storage.
- authentication
- The process of checking a user's password before allowing
that user access to the server. Authentication can be
turned on or off by an administrator with system
privilege.
- authority
- The right granted to a user to perform tasks with Tivoli
Storage Manager servers and clients. See administrative
privilege class.
- autochanger
- A small multislot tape device that has a mechanism that
automatically puts tape cartridges into the tape drive or
drives. Also called medium or media changer,
or a library.
- availability
management
- Managing recovery from relatively common computer system
outages such as a disk drive head crash. Recovery is
often accomplished by using disk mirroring and other
forms of RAID technology, or by maintaining onsite backup
copies of data.
- available space
- The amount of space, in megabytes, that is available to
the database and recovery log. This space can be used to
extend the capacity of the database or recovery log, or
to provide sufficient free space before a volume is
deleted from the database or recovery log.
- awk
- In AIX, a pattern-matching program for processing text
files. With the Tivoli Disaster Recovery Manager, you can
use an awk script to break up the disaster recovery plan
file into usable parts.
- background process
- A server process that runs in the background, allowing
the administrative session to be used for other work.
- backup
- The process of copying information for safekeeping.
Tivoli Storage Manager has processes for backing up user
files, the Tivoli Storage Manager database, and storage
pools. For example, users can back up one or more files
to a storage pool to ensure against loss of data.
Contrast with restore. See also database backup
series and incremental backup.
- backup-archive
client
- A program that runs on a workstation or file server and
provides a means for users to back up, archive, restore,
and retrieve files. Contrast with administrative
client.
- backup copy
- A user file that has been backed up to a Tivoli Storage
Manager storage pool.
- backup copy group
- A policy object containing attributes that control the
generation, destination, and expiration of backup files.
A backup copy group belongs to a management class.
- backup
retention grace period
- The number of days Tivoli Storage Manager retains a
backup version after the server is unable to rebind the
file to an appropriate management class.
- backup series
- See database backup series.
- backup set
- A portable, consolidated group of active backup files for a single client.
Generation of a backup set is possible for selected backup-archive clients that
obtain services from a server at the latest software level.
- backup version
- A file, directory, or file space that a user has backed
up, which resides in Tivoli Storage Manager server
storage. There may be more than one backup version of a
file in the storage pool, but at most only one is an
active backup version. See active version and inactive
version.
- binding
- The process of associating a file with a management class
name. See rebinding.
- boot media
- Media that contains operating system and other files
essential to running a workstation or server.
- buffer
- Storage used to compensate for differences in the data
rate flow, when transferring data from one device to
another.
- buffer pool
- Temporary space used by the server to hold database or
recovery log pages. See database buffer pool and recovery
log buffer pool.
- cache
- The process of leaving a duplicate copy on random access
media when the server migrates a file to another storage
pool in the hierarchy.
- CARTRIDGE
- On Tivoli Storage Manager servers that support it, a
device class that is used to categorize tape devices that
support tape cartridges, such as the 3490 Magnetic Tape
Subsystem.
- cartridge
system tape (CST)
- The base tape cartridge media used with 3480 or 3490
Magnetic Tape Subsystems. When specified as a media type
in Tivoli Storage Manager, CST identifies standard length
tape. Contrast with enhanced capacity cartridge system
tape.
- central scheduler
- A function that allows an administrator to schedule
client operations and administrative commands. The
operations can be scheduled to occur periodically or on a
specific date. See client schedule and administrative
command schedule.
- CID
- Configuration Installation and Distribution.
- client
- A program running on a PC, workstation, file server, LAN
server, or mainframe that requests services of another
program, called the server. The following types of clients can obtain
services from a Tivoli Storage Manager server: administrative client,
application client, API client, backup-archive client, HSM client (also
known as space manager client), and host server.
- Client Access/400
- A software product that supports advanced
program-to-program communications (APPC) in the DOS,
OS/2, and Microsoft Windows environments and provides a
set of end user services.
- client domain
- The set of drives, file systems, or volumes selected by a
backup-archive client user during a backup or archive
operation.
- client migration
- The process of copying a file from a client node to
Tivoli Storage Manager storage and replacing the file
with a stub file on the client node. The process is
controlled by the user and by space management attributes
in the management class. See also space management.
- client node
- A file server or workstation on which the backup-archive
client program has been installed, which has been
registered to the server.
- client node session
- A period of time in which a user communicates with a
server to perform backup, restore, archive, retrieve,
migrate, or recall requests. Contrast with administrative
session.
- client options file
- A file that a client can change, containing a set of
processing options that identify the server,
communication method, and options for backup, archive,
hierarchical storage management, and scheduling. Also
called the dsm.opt file.
- client
polling scheduling mode
- A client/server communication technique where the client
queries the server for work.
- client schedule
- A database record that describes the planned processing
of a client operation during a specific time period. The
client operation can be a backup, archive, restore, or
retrieve operation, a client operating system command, or
a macro. See also administrative command schedule.
- client/server
- A system architecture in which one or more programs
(clients) request computing or data services from another
program (server).
- client
system options file
- A file, used on UNIX clients, containing a set of
processing options that identify the Tivoli Storage
Manager servers to be contacted for services. This file
also specifies communication methods and options for
backup, archive, hierarchical storage management, and
scheduling. Also called the dsm.sys file. See also
client user options file.
- client user
options file
- A user-created file, used on UNIX clients, containing a
set of processing options that identify the server,
communication method, backup and archive options, space
management options, and scheduling options. Also called
the dsm.opt file. See also client system
options file.
- closed registration
- A registration process in which an administrator must
register workstations as client nodes with the server.
Contrast with open registration.
- cluster
- In a Microsoft environment, a set of independent computer systems,
called nodes, that are set up to work together as a single system.
The cluster helps ensure that critical applications and resources remain
available.
- code page
- An assignment of graphic characters and control function meanings to all
code points; for example, assignment of characters and meanings to 256
code points for an 8-bit code, assignment of characters and meanings to 128
code points for a 7-bit code. Describes how binary values are mapped to
human-readable characters.
- collocation
- A process that attempts to keep all data belonging to a
single client node or a single client file space on a
minimal number of sequential access media volumes within
a storage pool. Collocation can reduce the number of
volumes that must be accessed when a large amount of data
must be restored.
- command script
- A sequence of Tivoli Storage Manager administrative commands that are stored in the
server database. The script can include substitution for command
parameters
and conditional logic. You can run the script from any interface to
the server.
- commit
- To make changes permanent in the database. Changes made
to the database files are not permanent until they are
committed.
- Common
Programming Interface Communications (CPI-C)
- A programming interface that allows program-to-program
communication using SNA LU6.2. See also Systems
Network Architecture.
- Common User
Access (CUA)
- Guidelines for the dialog between a human and a
workstation or terminal. One of the three Systems
Application Architecture areas.
- communication
manager
- A component of OS/2 that allows a workstation to connect
to a host computer and use the host resources as well as
the resources of other personal computers to which the
workstation is attached, either directly or through a
host.
- communication
method
- The method used by a client and server for exchanging
information.
- communication
protocol
- A set of defined interfaces that allow computers to
communicate with each other.
- compression
- The process of saving storage space by eliminating empty
fields or unnecessary data in a file. In Tivoli Storage
Manager, compression can occur at a workstation before
files are backed up or archived to server storage. On
some types of tape drives, hardware compression can be
used.
- Configuration
Installation and Distribution (CID)
- IBM's term for capabilities to automate installation.
CID-enabled products are capable of unattended, remote
installation.
- configuration
manager
- A Tivoli Storage Manager server that distributes
configuration information to other Tivoli Storage Manager
servers (called managed servers) via profiles.
Configuration information can include policy and
schedules. See managed server and profile.
- copy group
- A policy object that contains attributes that control the
generation, destination, and expiration of backup and
archive files. There are two kinds of copy groups: backup
and archive. Copy groups belong to management classes.
See also frequency, destination, mode,
serialization, retention, and version.
- copy status
- The status of volume copies defined to the database or
recovery log. The copy status can be synchronized, stale,
off-line, or undefined.
- copy storage pool
- A named set of volumes that contains copies of files that
reside in primary storage pools. Copy storage pools are
used only to back up the data stored in primary storage
pools. A copy storage pool cannot be a destination for a
backup copy group, an archive copy group, or a management
class (for space-managed files). See primary storage
pool and destination.
- CPI-C
- Common Programming Interface Communications.
- CST
- Cartridge system tape.
- CUA
- Common User Access.
- daemon
- In the AIX operating system, a program that runs
unattended to perform a standard service. Some daemons
are triggered automatically to perform their tasks;
others operate periodically.
- daemon process
- In the AIX operating system, a process begun by the root
user or by the root shell that can be stopped only by the
root user. Daemon processes generally provide services
that must be available at all times, such as sending data
to a printer.
- damaged file
- A physical file for which Tivoli Storage Manager has
detected read errors.
- DASD
- Direct access storage device.
- data mover
- A named device that moves data on behalf of the Tivoli Storage Manager server.
A NAS
file server can be data mover.
- data set
- See linear data set.
- database
- A collection of information about all objects managed by
the server, including policy management objects, users
and administrators, and client nodes.
- database audit
- A utility that checks for and optionally corrects
inconsistent database references.
- database backup
series
- One full backup of the server database, plus up to 32
incremental backups made since that full backup. Each
full backup that is run starts a new database backup
series. A backup series is identified with a number.
- database backup
trigger
- A set of criteria that defines when and how database
backups are run automatically. The criteria determine how
often the backup is run, whether the backup is a full or
incremental backup, and where the backup is stored.
- database buffer
pool
- Storage that is used as a cache to allow database pages
to remain in memory for long periods of time, so that the
server can make continuous updates to pages without
requiring input or output (I/O) operations from external
storage.
- database dump
- The action performed by the DSMSERV DUMPDB utility
(DMPADSM command on AS/400), which copies Tivoli Storage
Manager database entries to media for later reload in
case a catastrophic error occurs.
- database load
- The action performed by the DSMSERV LOADDB utility
(LODADSM command on AS/400), which copies Tivoli Storage
Manager database entries from media to a newly installed
database.
- database snapshot
- A function of Tivoli Storage Manager that backs up the entire server database to media that can be taken off-site. The database snapshot does not interrupt any
database backup series and cannot have incremental database backups
associated with it. Contrast with full backup.
- database volume
- A volume that has been assigned to the Tivoli Storage
Manager database.
- dataserver
- See Tape Library Dataserver.
- DDM
- Distributed Data Management.
- default
management class
- A management class assigned to a policy set, which is
used to govern backed up or archived files when a user
does not specify a management class for a file.
- deletion exit
- For MVS or VM, an installation-wide exit that informs a
tape management system or operator that the server has
deleted a sequential access media volume from its
database.
- delimiter
- (1) A character used to indicate the beginning and end of
a character string.
- (2) A character that groups or separates words or values
in a line of input.
- desktop client
- The group of clients supported by Tivoli Storage Manager
that include clients on OS/2, DOS, Windows, Apple, and
Novell NetWare operating systems.
- destination
- A copy group or management class attribute that specifies
the primary storage pool to which a client file will be
backed up, archived, or migrated.
- device class
- A named group of storage devices with common
characteristics. Each device class has a unique name and
represents a device type of disk, file, optical disk, or
tape.
- device
configuration file
- A file that contains information about defined device
classes, and, on some Tivoli Storage Manager servers,
defined libraries and drives. The file can be created by
using a Tivoli Storage Manager command or by using an
option in the server options file. The information is a
copy of the device configuration information in the
Tivoli Storage Manager database.
- device driver
- A collection of subroutines that control the interface
between I/O device adapters and the processor.
- device type
- A category of storage device. Each device class is
categorized with one of the supported device types, for
example, DISK or CARTRIDGE.
- direct
access storage device (DASD)
- A device in which access time is effectively independent
of the location of the data.
- disaster recovery
- Recovery from catastrophic interruptions of computer
systems, such as loss of the system location because of
natural events. Backup data is kept offsite to protect
against such catastrophes.
- Disaster Recovery Manager
- A function that assists in preparing and later using a
disaster recovery plan for the Tivoli Storage Manager
server. This function is also known as Tivoli Disaster
Recovery Manager.
- disaster
recovery plan
- A document that contains information about how to recover
computer systems if a disaster occurs. The Tivoli
Disaster Recovery Manager product allows you to create the plan for a
Tivoli Storage Manager server. The plan is a file that
contains information about the software and hardware used
by the Tivoli Storage Manager server, and the location of
recovery media.
- DISK
- A device class that is defined by Tivoli Storage Manager
at installation. It is used to categorize disk drives,
such as internal disk drives or 3390 DASD.
- disk
operating system (DOS)
- An operating system used in IBM PC, PS/2, and compatible
computers.
- Distributed
Data Management (DDM)
- A feature of the System Support Program Product that
allows an application program (client) to use server
program functions to work on files that reside in a
remote system.
- DLL
- Dynamic link library.
- DLT
- Digital linear tape.
- domain
- See policy domain or client domain.
- DOS
- Disk operating system.
- drive
- A device used to read and write data on a medium such as
a magnetic disk, optical disk, or tape.
- drive mapping
- The correlation of drive names between a TSM server and a TSM storage
agent.
- DRM
- Disaster recovery manager, also known as Tivoli Disaster
Recovery Manager.
- dsm.opt file
- See client options file and client user options
file.
- dsmserv.opt file
- See server options file.
- dsm.sys file
- See client system options file.
- dynamic
- A copy group serialization value that specifies that
Tivoli Storage Manager accepts the first attempt to back
up or archive a file regardless of whether the file is
modified during the backup or archive process. See also serialization.
Contrast with shared dynamic, shared static,
and static.
- dynamic link
library
- A file containing executable code and data bound to a
program at load time or run time, rather than during
linking. The code and data in a dynamic link library can
be shared by several applications simultaneously.
- ECCST
- Enhanced capacity cartridge system tape.
- enhanced
capacity cartridge system tape (ECCST)
- Cartridge system tape with increased capacity that can
only be used with 3490E tape subsystems. Contrast with cartridge
system tape.
- enterprise
configuration
- A Tivoli Storage Manager facility that allows a server
configuration to be distributed to other servers using
server-to-server communication. See configuration
manager, managed server, profile, and subscription.
- enterprise logging
- The sending of events from Tivoli Storage Manager servers
to a designated event server. The event server routes the
events to designated receivers, such as to a user exit.
See also event.
- error log
- A character file written on random access media that
contains information about errors detected by the server
or client.
- estimated capacity
- The available space, in megabytes, of a storage pool.
- Ethernet
- A data link protocol and LAN that interconnects personal
computers and workstations via coaxial cable.
- event
- (1) An administrative command or a client operation that
is scheduled to be run using Tivoli Storage Manager
scheduling.
- (2) A message that a Tivoli Storage Manager server or
client issues. Messages can be logged using Tivoli
Storage Manager event logging.
- event record
- A database record that describes actual status and
results for events.
- event server
- A server to which other servers can send events for
logging. The event server routes the events to any
receivers that are enabled for the sending server's
events.
- exclude
- The process of identifying files or directories in an
include-exclude list to prevent these objects from being
backed up whenever a user or schedule issues an
incremental or selective backup operation, or to prevent
these objects from being migrated off the client node via the space
management client.
- exclude-include
list
- See include-exclude list.
- exit
- To execute an instruction within a portion of a computer
program in order to terminate the execution of that
portion.
- exit machine
- On a VM server, a virtual machine that runs the mount and
deletion installation-wide exits on VM systems.
- expiration
- The process by which files are identified for deletion
because their expiration date or retention period has
passed. Backed up or archived files are marked expired by
Tivoli Storage Manager based on the criteria defined in
the backup or archive copy group.
- expiration date
- On MVS, VM, and VSE servers, a device class attribute
used to notify tape management systems of the date when
Tivoli Storage Manager no longer needs a tape volume. The
date is placed in the tape label so that the tape
management system does not overwrite the information on
the tape volume before the expiration date.
- export
- The process of copying administrator definitions, client
node definitions, policy definitions, server control
information or file data to external media.
- export/import
facility
- See import/export facility.
- extend
- The process of increasing the portion of available space
that can be used to store database or recovery log
information. Contrast with reduce.
- fallover
- For a Microsoft cluster configuration, the process that occurs when one
resource, for example a server, fails and operations are automatically
taken over by another resource in the cluster.
- file record extent
- The extent of the file enumerated in number of records.
- file space
- A logical space in a client's storage that can contain a
group of files. For clients on Windows systems, a
file space is a logical partition that is identified by a
volume label. For clients on systems such as AIX and
UNIX, a file space can consist of any subset of
directories and subdirectories stemming from a virtual
mount point. Clients can restore, retrieve, or delete
their file spaces from Tivoli Storage Manager server
storage. Tivoli Storage Manager does not necessarily
store all the files from a single file space together,
but can identify all the files in server storage that
came from a single file space.
- File
Transfer Protocol (FTP)
- In TCP/IP, the protocol that makes it possible to
transfer data among hosts and to use foreign hosts
indirectly.
- format
- A device class attribute that specifies the recording
format used to read or write to sequential access media
such as tape.
- frequency
- A copy group attribute that specifies the minimum
interval, in days, between incremental backups.
- FSID
- File space ID. A unique numeric identifier that the server assigns
|to a file space when it is stored in server storage.
- FTP
- File Transfer Protocol.
- full backup
- A Tivoli Storage Manager function that copies the entire database. A full backup begins a new database backup
series. Contrast with incremental backup. See database
backup series.
- fuzzy copy
- A backup version or archive copy of a file that might not
accurately reflect what is currently in the file because
Tivoli Storage Manager backed up or archived the file
while the file was being modified.
- GUI
- Graphical user interface.
- HDA
- Head-disk assembly.
- head-disk
assembly (HDA)
- A field replaceable unit in a direct access storage
device containing the disks and actuators.
- hierarchical
storage management (HSM) client
- The Tivoli Space Manager program that runs on workstations to allow users to
maintain free space on their workstations by migrating
and recalling files to and from Tivoli Storage Manager
storage. Synonymous with space
management client.
- high migration
threshold
- A percentage of the storage pool capacity that identifies
when Tivoli Storage Manager can start migrating files to
the next available storage pool in the hierarchy.
Contrast with low migration threshold. See server
migration.
- host server
- The name for the system on which the Tivoli Data Protection for Workgroups
program runs. The host server obtains scheduling services from Tivoli
Storage Manager.
- HP-UX
- Hewlett-Packard UNIX operating system.
- HSM client
- Hierarchical storage management client, also known as
Tivoli Space Manager client.
- image backup
- A backup operation that stores a full file system or raw logical volume
as a single object.
- import
- The process of copying exported administrator
definitions, client node definitions, policy definitions,
server control information or file data from external
media to a target server.
-
- import/export
facility
- The facility that allows system administrators to copy
definitions and file data from a source server to
external media to move or copy information between
servers. A subset of information can be imported to a
target server from the external media.
- inactive version
- A backup version of a file for which a more recently
backed up version exists. Inactive backup versions are
eligible for expiration processing according to the
management class assigned to the file. Contrast with active
version.
- include-exclude
file
- On UNIX and Windows clients, a file containing statements that Tivoli
Storage Manager uses to determine whether to back up or
migrate certain files, and to determine the associated
management classes to use for backup, archive, and space
management. See include-exclude list.
- include-exclude
list
- A group of include and exclude option statements that Tivoli Storage Manager uses.
The exclude
options identify files that should not be backed up or
migrated off the client node. The include options
identify files that are exempt from the exclusion rules,
or assign a management class to a file or group of files
for backup, archive, or space management services. The
include-exclude list for a client may include option statements from the
include-exclude file (for UNIX or Windows clients), from the client
options file (for other clients), and from a client option set on the
server.
- incremental backup
- (1) A function that allows users to back up files or
directories that are new or have changed since the last
incremental backup. With this function, users can back up
files or directories from a client domain that are not
excluded in the include-exclude list and that meet the
requirements for frequency, mode, and serialization as
defined in the backup copy group of the management class
assigned to the files. Contrast with selective backup.
- (2) A Tivoli Storage Manager function that copies only
the pages in the database that are new or changed since
the last full or incremental backup of the database.
Contrast with full backup. See database backup
series.
- internal
mounting facility
- On a VM server, a VM facility that allows the server to
request tape mounts by sending a message to a mount
operator. The message is repeated until the tape is
mounted or until the mount wait time is exceeded.
- inter-user
communication vehicle (IUCV) facility
- On a VM server, a VM communication method used to pass
data between virtual machines and VM components.
- IPX/SPX
- Internetwork Packet Exchange/Sequenced Packet Exchange.
IPX/SPX is Novell NetWare's communication protocol.
- IUCV
- Inter-user communication vehicle.
- KB
- Kilobyte.
- kernel
- The part of an operating system that performs basic
functions such as allocating hardware resources.
- kernel extension
- A program that modifies parts of the kernel that can be
customized to provide additional services and calls. See kernel.
- kilobyte (KB)
- 1024 bytes.
- LAN
- Local area network.
- LAN-free data transfer
- The movement of client data directly from a client to a storage device over a SAN, rather than over the LAN.
- length
- A device class attribute that specifies the length of
cartridge tape by specifying one of the following media
types: CST for standard length tape or ECCST for double
length tape.
- library
- (1) A repository for demountable recorded media, such as
magnetic tapes.
- (2) In Tivoli Storage Manager, a collection of one or
more drives, and possibly robotic devices (depending on
the library type), which can be used to access storage
volumes.
- (3) In the AS/400 system, a system object that serves as
a directory to other objects. A library groups related
objects, and allows the user to find objects by name.
- library client
- A TSM server that uses server-to-server communications when multiple TSM
servers share a storage device to contact a library manager and request device
services.
- library manager
- A Tivoli Storage Manager server that controls device operations when multiple
Tivoli Storage Manager servers share a storage device. These operations include mount, dismount,
volume ownership, and library inventory.
- linear data set
- A type of MVS data set that Tivoli Storage Manager uses
for the database, the recovery log, and storage pools.
The data set must be preallocated using VSAM IDCAMS and
formatted by Tivoli Storage Manager for its use.
- load
- See mount.
- local area
network (LAN)
- A network in which a set of devices are connected to one
another for communication and that can be connected to a
larger network.
- logical file
- A client file stored in one or more server storage pools,
either by itself or as part of an aggregate file. See
also aggregate file and physical file.
- logical occupancy
- The space required for the storage of logical files in a
storage pool. Because logical occupancy does not include
the unused space created when logical files are deleted
from aggregates, it may be less than physical
occupancy. See also physical file and logical
file.
- logical volume
- (1) A portion of a physical volume that contains a filesystem.
- (2) The combined space from all volumes defined to either the
database or the recovery log. The database is one logical volume and the recovery log
is one logical volume.
- log pool size
- The size of an area in memory used to store recovery log
pages.
- low migration
threshold
- A percentage of the storage pool capacity that specifies
when Tivoli Storage Manager can stop the migration of
files to the next storage pool. Contrast with high
migration threshold. See server migration.
- machine information
- Details about the machine on which a client node resides.
- macro file
- A file that contains one or more administrative commands
and that is run from an administrative client. Contrast
with Tivoli Storage Manager command script.
- managed object
- A definition in the database of a Tivoli Storage Manager
managed server that was distributed to the managed server
by a configuration manager. The definition cannot be
modified locally on the managed server. When a managed
server subscribes to a profile, all objects associated
with that profile become managed objects in the database
of the managed server. Objects can include policy,
schedules, client options sets, server scripts,
administrator registrations, and server and server group
definitions.
- managed server
- A Tivoli Storage Manager server that receives
configuration information from a configuration manager
via subscription to one or more profiles. Configuration
information can include definitions of objects such as
policy and schedules. See configuration manager, subscription,
and profile.
- managed system
- A client or server that requests services from the Tivoli Storage Manager server.
- management class
- A policy object that users can bind to each file to
specify how the server manages the file. The management
class can contain a backup copy group, an archive copy
group, and space management attributes. The copy groups
determine how the Tivoli Storage Manager server manages
backup versions or archive copies of files. The space
management attributes determine whether files are
eligible for migration from client nodes to Tivoli
Storage Manager storage, and under what conditions. See
also copy group, binding, and rebinding.
- mask
- A pattern of characters that controls the keeping,
deleting, or testing of positions of another pattern of
characters or bits.
- maximum extension
- Specifies the maximum amount of storage space, in
megabytes, that you can extend the database or recovery
log.
- maximum reduction
- Specifies the maximum amount of storage space, in
megabytes, that you can reduce the database or recovery
log.
- maximum utilization
- The highest percentage of assigned capacity used by the
database or recovery log.
- MB
- Megabyte.
- megabyte (MB)
- (1) For processor storage and real and virtual memory, 220
or 1 048 576 bytes.
- (2) For disk storage capacity and transmission rates,
1 000 000 bytes.
- migrate
- (1) To move data from one storage pool to the storage
pool specified as the next pool in the hierarchy. The
process is controlled by the high and low migration
thresholds for the first storage pool. See high
migration threshold and low migration threshold.
- (2) To copy a file from a Tivoli Space Manager client node to Tivoli Storage
Manager storage. Tivoli Space Manager replaces the file
with a stub file on the client node. The process is
controlled by the include-exclude list and by space
management attributes in management classes.
- migration
- The process of moving data from one storage location to
another. See client migration and server
migration.
- minidisk
- A logical subdivision of a VM physical disk that provides
storage on contiguous cylinders of DASD. On a VM server,
a minidisk can be defined as a disk volume that can be
used by the database, recovery log, or a storage pool.
- mirroring
- A feature that protects against data loss within the
database or recovery log by writing the same data to
multiple disks at the same time. Mirroring supports up to
three exact copies of each database or recovery log
volume.
- mm
- Millimeter.
- mode
- A copy group attribute that specifies whether to back up
a file that has not been modified since the last time the
file was backed up. See modified and absolute.
- modified
- A backup copy group mode value indicating that a file is
considered for incremental backup only if it has changed
since the last backup. A file is considered changed if
the date, size, owner, or permissions have changed. See mode.
Contrast with absolute.
- Motif
- A graphical user interface that performs window
management and contains a high level toolkit for
application program development. It provides an icon view
of the UNIX file system. Also known as X-Windows/Motif or
Motif X--Toolkit.
- mount
- To place a data medium (such as a tape cartridge) on a
drive in a position to operate.
- mount exit
- On a VM server, an installation-wide exit (DSMMOUNT EXEC)
that requests tape mounts on behalf of the server on VM
systems.
- mount limit
- A device class attribute specifying the maximum number of
volumes that can be simultaneously accessed from the same
device class, that is, the maximum number of mount
points. See mount point.
- mount operator
- On a VM server, a VM user ID that can receive tape mount
messages from the server.
- mount point
- A logical drive through which Tivoli Storage Manager
accesses volumes in a sequential access device class. For
a device class with a removable media device type (for
example, CARTRIDGE), a mount point is a logical drive
associated with a physical drive. For a device class with
the device type of FILE, a mount point is a logical drive
associated with an I/O stream. The number of mount points
for a device class is determined by the mount limit for
that class. See mount limit.
- mount request
- A server request to mount a sequential access media
volume so that data can be read from or written to the
sequential access media.
- mount retention
period
- A device class attribute that specifies the maximum
number of minutes that the server retains a mounted
sequential access media volume that is not being used
before it dismounts the sequential access media volume.
- mount wait period
- A device class attribute that specifies the maximum
number of minutes that the server waits for a sequential
access volume mount request to be satisfied before
canceling the request.
- MSCS
- Microsoft Cluster Server.
- Multiple
Virtual Storage (MVS)
- One of the family of IBM operating systems for the
System/370 or System/390 processor, such as MVS/ESA. MVS
is one of the supported server environments.
- MVS
- Multiple Virtual Storage.
- Named Pipes
- A communication protocol that is built into the Windows
NT or OS/2 operating system. It can be used to establish
communications between a Tivoli Storage Manager server
and Tivoli Storage Manager clients on the same system.
- NAS
- Network-attached storage.
- NAS node
- A Tivoli Storage Manager node that is a NAS file server. Data for the NAS node is not transferred by the Tivoli Storage Manager
client, but rather by the NAS file server itself at the direction of a
Tivoli Storage Manager server that uses NDMP. Also
called NAS file server node.
- native format
- A format that is written to a storage pool directly by the Tivoli
Storage Manager server. Contrast with non-native data format.
- NDMP
- Network Data Management Protocol
- NetBIOS
- Network Basic Input/Output System.
- network adapter
- A physical device, and its associated software, that
enables a processor or controller to be connected to a
network.
- Network
Basic Input/Output System (NetBIOS)
- An operating system interface for application programs
used on IBM personal computers that are attached to the
IBM Token-Ring Network.
- Network Data Management Protocol
- An industry standard protocol that allows a network storage-management
application (such as Tivoli Storage Manager) to control the backup and recovery of an NDMP-compliant file
server without installing third-party software on that server.
- Network File
System (NFS)
- A protocol defined by Sun Microsystems that extends
TCP/IP network file services. NFS permits remote node
files to appear as though they are stored on a local
workstation.
- network-attached storage (NAS) file server
- A dedicated storage device with an operating system that is optimized
for file-serving functions. A NAS file server can have the
characteristics of both a node and a data mover. See also data
mover and NAS node.
- Networking
Services/DOS (NS/DOS)
- A software product that supports advanced
program-to-program communications (APPC) in the DOS and
Microsoft Windows 3.1 environments. With NS/DOS,
communications applications on your workstation
"talk to" partner applications on other systems
that support APPC.
- NFS
- Network File System.
- node
- (1) A unique name used to identify a workstation to the Tivoli Storage
Manager server. See also client node. (2) In a Microsoft
cluster configuration, one of the computer systems that make up the
cluster. See cluster.
- node privilege class
- An administrative privilege class that allows a user to remotely access a Web backup-archive client with an administrative user ID and
password. A user with node privilege can have client owner or client
access authority for a specific client node or for all clients in a
policy domain.
- non-native data format
- A format of data written to a storage pool that is different from
the format that the server uses for basic LAN-based operations. The
data is written by a data mover instead of the server. Storage pools with data written in a non-native format may not support
some server operations, such as audit volume. The NETAPPDUMP data
format for NAS node backups is an example of a non-native format.
- notify operator
- A VM user ID that specifies an operator who receives
messages about severe errors and abnormal conditions.
-
- object
- A collection of data managed as a single entity.
- offsite recovery
media
- Media that is kept at a different location to ensure its
safety if a disaster occurs at the primary location of
the computer system. The media contains data necessary to
recover the Tivoli Storage Manager server and clients.
The offsite recovery media manager, which is part of DRM,
identifies recovery media to be moved offsite and back
onsite, and tracks media status.
- offsite volume
- A removable media volume that is at a location where it
cannot be mounted for use.
- open registration
- A registration process in which users can register their
own workstations as client nodes with the server.
Contrast with closed registration.
- Operating
System/2 (OS/2)
- An operating system used in IBM PC AT, PS/2, and
compatible computers.
- operator
privilege class
- An administrative privilege class that allows an
administrator to issue commands that control the
operation of the server. This privilege class allows
disabling or halting the server to perform maintenance,
enabling the server, canceling server processes, and
managing tape.
- optical library
- A storage device that houses optical disk drives and
optical disks, and contains a mechanism for moving
optical disks between a storage area and optical disk
drives.
- OS/2
- Operating System/2.
- OS/390
- Operating System/390.
- OS/400
- Operating System/400.
- owner
- The owner of backup-archive files sent from a multiuser
client node, such as AIX.
- page
- (1) A block of instructions, data, or both.
- (2) In Tivoli Storage Manager, a unit of space allocation
within database volumes.
- (3) In a virtual storage system, a fixed block that has a
virtual address and is transferred as a unit between real
storage and auxiliary storage.
- paging
- (1) The action of transferring instructions, data, or
both, between real storage and external page storage.
- (2) Moving data between memory and a mass storage device
as the data is needed.
- path
- A Tivoli Storage Manager object that defines a one-to-one relationship
between a source and a destination. Using the path, the source
accesses the destination. Data may flow from the source to the
destination, and back. An example of a source is a data mover (such
as a NAS file server), and an example of a destination is a tape drive.
- pattern-matching
expression
- A string expression that uses wildcard characters to
specify one or more Tivoli Storage Manager objects. See
also wildcard character.
- physical file
- A file, stored in one or more storage pools, consisting
of either a single logical file, or a group of logical
files packaged together (an aggregate file). See also aggregate
file and logical file.
- physical occupancy
- The occupancy of physical files in a storage pool. This
is the actual space required for the storage of physical
files, including the unused space created when logical
files are deleted from aggregates. See also physical
file, logical file, and logical occupancy.
- platform
- The operating system environment in which a program runs.
- policy domain
- A policy object that contains policy sets, management
classes, and copy groups that are used by a group of
client nodes. See policy set, management class,
and copy group.
- policy privilege
class
- An administrative privilege class that allows an
administrator to manage policy objects, register client
nodes, and schedule client operations (such as backup
services) for client nodes. Administrators can be
authorized with unrestricted or restricted policy
privilege.
- policy set
- A policy object that contains a group of management class
definitions that exist for a policy domain. At any one
time there can be many policy sets within a policy domain
but only one policy set can be active. See management
class and active policy set.
- premigration
- For an HSM client, the process of copying files that are
eligible for migration to Tivoli Storage Manager storage,
but leaving the original file intact on the local system.
- primary storage
pool
- A named set of volumes that Tivoli Storage Manager uses
to store backup versions of files, archive copies of
files, and files migrated from HSM client nodes. A
primary storage pool may be backed up to a copy storage
pool. See destination and copy storage pool.
- privilege class
- A level of authority granted to an administrator of Tivoli Storage Manager. The privilege class determines which
Tivoli Storage Manager administrative tasks the
administrator can perform. For example, an administrator
with system privilege class can perform any
administrative task. See system privilege class,
policy privilege class, storage privilege class, operator
privilege class, and analyst privilege class.
- profile
- A named group of configuration information that can be
distributed from a configuration manager when a managed
server subscribes. Configuration information can include
registered administrators, policy, client schedules,
client option sets, administrative schedules, server
command macros, server definitions, and server group
definitions. See configuration manager and managed
server.
- protection status
- A device class attribute that specifies whether to update
the RACF profile to identify which users have access to
cartridge tapes associated with this device class on MVS
servers.
- QIC
- Quarter-inch cartridge (a type of magnetic tape media).
- random access media
- Any volume accessed in a nonsequential manner. In the
Tivoli Storage Manager, volumes are accessed in a
nonsequential manner if they reside in the DISK device
class.
- randomization
- The percentage of the startup window that the server can
use to randomize start times for different client nodes
associated with a schedule.
- rebinding
- The process of associating a file with a backed-up file
with a new management class name. For example, rebinding
occurs when the management class associated with a file
is deleted. See binding.
- recall
- A function that allows users to access files that have
been migrated from their workstations to Tivoli Storage
Manager storage via the HSM client. Contrast with migrate.
- receiver
- A server repository that contains a log of server messages and most client messages as events. For example, a receiver can be file and user exits, or the TSM server console and activity log. See also
event.
- reclamation
- A process of consolidating the remaining data from many
sequential access volumes onto fewer new sequential
access volumes.
- reclamation
threshold
- The percentage of reclaimable space that a sequential
access media volume must have before the server can
reclaim the volume. Space becomes reclaimable when files
are expired or are deleted. The percentage is set for a
storage pool.
- recovery log
- A log of updates that are about to be written to the
database. The log can be used to recover from system and
media failures.
- recovery log
buffer pool
- Used to hold new transactions records until they can be
written to the recovery log.
- recovery media
- Media that contains data necessary to recover the Tivoli
Storage Manager server and clients.
- reduce
- The process of freeing up enough space to allow you to
delete a volume from the database or recovery log.
Contrast with extend.
- REEL
- On Tivoli Storage Manager servers that support it, a
device class that is used to categorize tape devices that
support tape reels, such as the 3420 9-track tape device.
- register
- (1) Define a client node or administrator who can access
the server. See registration.
- (2) Specify licenses that have been purchased for the
server.
- registration
- The process of identifying a client node or administrator
to the server.
- reply operator
- On a VM server, a VM user ID that specifies an operator
who will reply to tape mount requests by the server.
- restore
- The process of returning a backup copy to an active
storage location for use. Tivoli Storage Manager has
processes for restoring its database, storage pools,
storage pool volumes, and users' backed-up files. For
example, users can copy a backup version of a file from
the storage pool to the workstation. The backup version
in the storage pool is not affected. Contrast with backup.
- retention
- The amount of time, in days, that inactive backed up or
archived files are kept in the storage pool before they
are deleted. Copy group attributes and default retention
grace periods for the domain define retention.
- retention period
- On an MVS server, a device class attribute that specifies
how long files are retained on sequential access media.
When used, Tivoli Storage Manager passes this information
to the operating system to ensure that other tape
management systems do not overwrite tape volumes that
contain retained data.
- retrieve
- A function that allows users to copy an archive copy from
the storage pool to the workstation. The archive copy in
the storage pool is not affected. Contrast with archive.
- rollback
- To remove changes that were made to database files since
the last commit point.
- root user
- In the AIX and UNIX environments, a user who has
superuser authority. The user can log in and execute
restricted commands, shut down the system, and edit or
delete protected files.
- SAN
- Storage area network.
- schedule
- A database record that describes scheduled client
operations or administrative commands. See administrative
command schedule and client schedule.
- scheduling mode
- The type of scheduling operation set for the server and
client. Tivoli Storage Manager supports two scheduling
modes for client operations: client-polling and
server-prompted.
- scratch volume
- A volume that is available for Tivoli Storage Manager
use. The volume is labeled, is either blank or contains
no valid data, and is not defined to Tivoli Storage
Manager.
- script
- See Tivoli Storage Manager command script.
- SCSI
- Small computer system interface.
- selective backup
- A function that allows users to back up specific files or
directories from a client domain. With this function,
users can back up files or directories that are not
excluded in the include-exclude list and that meet the
requirement for serialization as defined in the backup
copy group of the management class assigned to the files.
Contrast with incremental backup.
- sequential
access media
- Any volume that is accessed in a sequential manner, as
opposed to a random manner. In Tivoli Storage Manager,
volumes are accessed sequentially if they reside in a
device class other than DISK.
- serialization
- A copy group attribute that specifies what Tivoli Storage
Manager does if files are modified during back up or
archive processing. The value of this attribute
determines whether processing continues, is retried, or
is stopped. See static, dynamic, shared
static, and shared dynamic.
- server
- The program that provides backup, archive, space
management, and administrative services to clients. The
server program must be at the necessary level to provide
all of these services.
- server migration
- The process of moving data from one storage pool to the
next storage pool as controlled by the high and low
migration thresholds. See high migration threshold
and low migration threshold.
- server options file
- A file that contains options that control various server operations. The
options affect such things as communications, devices, and performance.
- server-prompted
scheduling mode
- A client/server communication technique where the server
contacts the client when a scheduled operation needs to
be done.
- server storage
- The primary and copy storage pools used by the server to
store users' files: backup versions, archive copies, and
files migrated from HSM client nodes (space-managed
files). See primary storage pool, copy storage
pool, storage pool volume, and volume.
- session resource
usage
- The amount of wait time, CPU time, and space used or
retrieved during a client session.
- shared dynamic
- A copy group serialization value that specifies that a
file must not be modified during a backup or archive
operation. Tivoli Storage Manager attempts to retry the
backup or archive operation a number of times; if the
file is in use during each attempt, Tivoli Storage
Manager will back up or archive the file on its last try
even though the file is in use. See also serialization.
Contrast with dynamic, shared static, and static.
- shared library
- A library device that is shared among multiple Tivoli Storage Manager
servers.
- shared static
- A copy group serialization value that specifies that the
file must not be modified during backup or archive.
Tivoli Storage Manager will retry the backup or archive
operation a number of times; if the file is in use during
each attempt, Tivoli Storage Manager will not back up or
archive the file. See also serialization. Contrast
with dynamic, shared dynamic, and static.
- shell
- In the AIX and UNIX environments, a software interface
between a user and the operating system of a computer.
Shell programs interpret commands and user interactions
on devices such as keyboards, pointing devices, and
touch-sensitive screens and communicate them to the
operating system.
- SMIT
- System Management Interface Tool.
- SNA LU6.2
- Systems Network Architecture Logical Unit 6.2.
- socket
- (1) An endpoint for communication between processes or
applications.
- (2) A pair consisting of TCP port and IP address, or UDP
port and IP address.
- source server
- A server that can send data, in the form of virtual
volumes, to another server. Contrast with target
server.
- space-managed file
- A file that is migrated from and recalled to a client
node via a Tivoli Space Manager (HSM) client.
- space management
- The process performed by Tivoli Space Manager to keep sufficient free storage space
available on a client node by migrating files to Tivoli
Storage Manager storage. The files are migrated based on
criteria defined in management classes to which files are
bound, and the include-exclude list. Synonymous with hierarchical
storage management, also known as Tivoli Space
Manager. See also migration.
- space
management client
- Synonym for hierarchical storage management (HSM) client.
- stale copy status
- Specifies that a volume copy is not available to the
database or recovery log.
- stanza
- A group of lines in a file that together have a common
function or define a part of the system. Stanzas are
usually separated by blank lines or colons, and each
stanza has a name.
- startup window
- A time period during which a schedule must be initiated.
- static
- A copy group serialization value that specifies that the
file must not be modified during backup or archive. If
the file is modified during the attempt, Tivoli Storage
Manager will not back up or archive the file. See also serialization.
Contrast with dynamic, shared dynamic, and shared
static.
- storage agent
- A program that enables a Tivoli Storage Manager client to back up and restore
client data directly to and from SAN-attached storage.
- storage area network (SAN)
- A high-speed communications network optimized for storage.
- storage hierarchy
- A logical ordering of primary storage pools, as defined
by an administrator with system privilege. Generally, the
ordering is based on the speed and capacity of the
devices that the storage pools use. In Tivoli Storage
Manager, the storage hierarchy is defined by identifying
the next storage pool in a storage pool
definition. See storage pool.
- storage
management services
- A component that allows a central system to act as a file
backup, archive, and space management server for local
area network file servers and workstations.
- storage pool
- A named set of storage volumes that Tivoli Storage
Manager uses to store client data. A storage pool is
either a primary storage pool or a copy storage pool. See
primary storage pool and copy storage pool.
- storage pool volume
- A volume that has been assigned to a Tivoli Storage
Manager storage pool. See volume, copy storage
pool, and primary storage pool.
- storage
privilege class
- An administrative privilege class that allows an
administrator to control the allocation and use of
storage resources for the server, such as monitoring the
database, recovery log, and server storage.
Administrators can be authorized with unrestricted or
restricted storage privilege.
- stub file
- A file that replaces the original file on a client node
when the file is migrated from the client node to Tivoli
Storage Manager storage.
- subscription
- The method by which a managed server requests that it
receive configuration information associated with a
particular profile on a configuration manager. See managed
server, configuration manager, and profile.
- superuser
- See root user.
- synchronized
copy status
- Specifies that the volume is the only volume copy or is
synchronized with other volume copies in the database or
recovery log. When synchronized, mirroring has started.
- system privilege
class
- An administrative privilege class that allows an
administrator to issue all server commands.
- Systems
Application Architecture (SAA)
- Software interfaces, conventions, and protocols that
provide a framework for designing and developing
applications that are consistent across systems.
- Systems
Network Architecture (SNA)
- A set of rules for data to be transmitted in a network.
Application programs communicate with each other using a
layer of SNA called advanced program-to-program
communications (APPC).
- tape library
- (1) A term used to refer to a collection of tape
cartridges.
- (2) An automated device that performs tape cartridge
mounts and demounts without operator intervention.
- Tape Library
Dataserver
- An automated tape library consisting of mechanical
components, cartridge storage frames, IBM tape
subsystems, and controlling hardware and software. The
tape library dataserver performs tape cartridge mounts
and demounts without operator intervention.
- tape volume prefix
- A device class attribute that is the high-level-qualifier
of the file name or the data set name in the standard
tape label.
- target server
- A server that can receive data sent from another server.
Contrast with source server. See also virtual
volumes.
- TCP/IP
- Transmission Control Protocol/Internet Protocol.
- Telnet
- In TCP/IP, the protocol that opens the connection to the
system.
- Tivoli Disaster Recovery Manager (DRM)
- A product that works with TSM to assist in preparing and later using a
disaster recovery plan for the TSM server.
- Tivoli Storage Manager
- A client/server program that provides storage management to customers in a
multi-vendor computer environment.
- Tivoli Storage Manager application program interface (API)
- A set of functions that applications running on a client platform can
call to store, query, and retrieve objects from Tivoli Storage Manger
storage.
- Tivoli Storage Manager command script
- A sequence of Tivoli Storage Manager administrative commands that are stored in the
server database. The script can include substitution for command
parameters
and conditional logic. You can run the script from any interface to
the server.
- Transmission
Control Protocol/Internet Protocol (TCP/IP)
- A set of communication protocols that support
peer-to-peer connectivity functions for both local and
wide area networks.
- trusted
communication agent
- A program that performs communication tasks on behalf of
the client or server, and ensures the security of the
communications.
- UCS-2
- An ISO/IEC 10646 encoding form, Universal Character Set coded in 2
|octets. The TSM client on Windows NT and Windows 2000 uses the UCS-2
|code page when the client is enabled for Unicode.
- Unicode Standard
- A universal character encoding standard that supports the interchange,
|processing, and display of text that is written in any of the languages of the
|modern world. It can also support many classical and historical texts
|and is continually being expanded. The Unicode Standard is compatible
|with ISO/IEC 10646. For more information, see http://www.unicode.org.
- unit name
- On an MVS server, a device class attribute that specifies
a group of tape devices used with the MVS server. A unit
name can be a generic device type, an esoteric unit name,
or a physical device.
- UNIX System
Services
- MVS/ESA services that support an environment within which
operating systems, servers, distributed systems, and
workstations share common interfaces. UNIX System
Services supports standard application development across
multivendor systems and is required to create and use
applications that conform to the POSIX standard. UNIX
System Services was formerly known as OpenEdition MVS.
- UTF-8
- Unicode transformation format - 8. A byte-oriented encoding form
|specified by the Unicode Standard.
- utilization
- The percent of assigned capacity used by the database or
recovery log at a specific point of time.
- validate
- The process of ensuring that the active policy set
contains a default management class and reporting on copy
group definition errors.
- version
- A backup copy of a file stored in server storage. The most recent backup
copy of a file is the active version. Earlier copies of the same
file are inactive versions. The number of versions retained by the server
is determined by copy group attributes in the management class.
- Virtual Machine
(VM)
- One of the family of IBM operating systems for the
System/390 processor, including VM/ESA.
- virtual server
- In a Microsoft cluster configuration, an MSCS cluster group that appears
to be a single Windows server. The virtual server has a network
name, an IP address, one or more physical disks, and a service.
- Virtual
Storage Extended (VSE)
- One of the family of IBM operating systems for the
System/390 processor, including VSE/ESA.
- virtual volume
- A volume that appears to be a sequential media volume on
a source server but that is actually stored as an
archive file on a target server.
- VM
- Virtual Machine.
- volume
- The basic unit of storage for the Tivoli Storage Manager
database, recovery log, and storage pools. A volume can
be an LVM logical volume, a standard file system file, a
tape cartridge, or an optical cartridge. Each volume is
identified by a unique volume identifier. See database
volume, scratch volume, and storage pool
volume.
- volume history file
- A file that contains information about: volumes used for
database backups and database dumps; volumes used for
export of administrator, node, policy, or server data;
and sequential access storage pool volumes that have been
added, reused, or deleted. The information is a copy of
the same types of volume information in the Tivoli
Storage Manager database.
- VSE
- Virtual Storage Extended
- wildcard character
- A special character such as an asterisk (*) or a question mark (?) that
can be used to represent one or more characters. Any character or
set of characters can replace a wildcard character.
Also called pattern-matching character.
- WORM
- A type of optical media that can only be written to and
cannot be erased.
- X Windows
- A network transparent windowing system developed by MIT.
It is the basis for other products, such as Enhanced X
Windows which runs on the AIX operating system.
- z/OS
- An IBM operating system based on the 64-bit z/Architecture.