The following acronyms are used in the Tivoli OMEGAMON XE on z/OS help.
CF Coupling facility. On z/OS, a special logical partition that provides high-speed caching, list processing, and locking functions in a sysplex.
CFRM Coupling Facility Resource Manager. A component of z/OS that provides the services to manage coupling facility resources in a sysplex. This management includes the enforcement of CFRM policies to ensure that the coupling facility and structure requirements are satisfied.
CP Central processor. The part of the computer that contains the sequencing and processing facilities for instruction execution, initial program load, and other machine operations.
CPC Central processor complex. In a z/OS or OS/390 environment, a physical collection of hardware (such as an ES/3090) that consists of main storage, one or more central processors, timers, and channels.
CPU Central processing unit. The part of a computer that includes the circuits that control the interpretion and running of instructions.
CSA Common service area. In z/OS, a part of the common area that contains data areas that can be addressed by all address spaces, but is protected during its use by the key of the requester.
CSECT Control section.
ECB Event control block. A control block used to represent the status of an event.
ESCON Enterprise Systems Connection. A peripheral interface for an Enterprise Systems Architecture/390 and zSeries computer. The I/O interface uses ESA/390 logical protocols over a serial interface that configures attached units to a communication fabric.
GRS ring Global resource serialization ring. Consists of one or more systems connected to each other by communication links. The links are used to pass information about requests for global resources from one system to another in the complex. Requests are made by passing a message or token, called the ring system authority (RSA) message, between systems in a round-robin or ring fashion.
HSA Hardware system area. A logical area of central storage, not addressable by application programs, used to store Licensed Internal Code and control information.
HSM Hierarchical storage management. A function that automatically distributes and manages data on disk, tape, or both by regarding devices of these types and potentially others as levels in a storage hierarchy that range from fast, expensive devices to slower, cheaper, and possibly removable devices. The objectives are to minimize access time to data and maximize available media capacity.
ICF Integrated Coupling Facility. A processor used by multiple systems to coordinate work. ICFs must be assigned to LPARs that then become coupling facilities.
ICSF Integrated Cryptographic Service Facility. Provides the administrative interface and a large set of application interfaces to the cryptographic coprocessor hardware.
IFA Integrated Facility for Applications. A special type of processor.
IRD Intelligent Resource Director. A key feature of the zSeries architecture, which automatically directs resources to priority workloads. IRD gives users the capability of managing resource and workload across z/OS LPARs that are members of a common group called an LPAR cluster. The Intelligent Resource Director is made up of three parts: LPAR CPU Management, Dynamic Channel Path Management (DCM), and Channel Subsystem Priority Queuing (CSSPQ).
JES Job Entry Subsystem. An IBM licensed program that receives jobs into the system and processes all output data that is produced by jobs.
RMF Resource Management Facility. An IBM licensed program or optional element of z/OS that measures selected areas of system activity and presents the data collected in the format of printed reports, System Management Facility (SMF) records, or display reports. RMF is used to evaluate system performance and identify reasons for performance problems.
RSA Ring system authority. Requests between systems in a GRS ring system are sent in a round-robin or ring fashion by passing a message or token, called the ring system authority (RSA) message.
SQA System queue area. An area of virtual storage below the 16MB line reserved for system-related control blocks.
SRB Service request block. A unit of work that is scheduled to execute in another address space.
SRM System resources manager. A group of programs that controls the use of system resources, such as programs, devices, and storage areas that are assigned for use in jobs.
TCB Task control block. A z/OS control block used to communicate information about tasks, within an address space, that are connected to a z/OS subsystem.
VIO Virtual input/output. Temporary data sets can be handled by a facility called virtual input/output (VIO). VIO data sets reside in the paging space but appear to the access method to reside on a direct access storage device.
WLM Workload Manager. A z/OS component that prioritizes workloads running on z/OS and matches workloads with available resources.
XCF Cross-system coupling facility. A special logical partition that provides high-speed caching, list processing, and locking functions in a sysplex. XCF provides the z/OS coupling services that allow authorized programs on z/OS systems in a multisystem environment to communicate with (send data to and receive data from) authorized programs on other z/OS systems.
zAAP zSeries Application Assist Processor. A special class of assist processor designed to run Java workloads. For reporting purposes, a zAAP is usually referred to as an integrated facility for applications (IFA).
zIIP zSeries Integrated Information Processor. A special class of assist process used mostly for DB2 workloads.