Tivoli Header
Administrator's Reference
Use this command to display information on one or more device
classes.
Privilege Class
Any administrator can issue this command.
Syntax
.-*-----------------.
>>-Query DEVclass--+-------------------+------------------------>
'-device_class_name-'
.-Format--=--Standard-----.
>--+-------------------------+---------------------------------><
'-Format--=--+-Standard-+-'
'-Detailed-'
Parameters
- device_class_name
- Specifies the name of the device class to be queried. This
parameter is optional. You can use wildcard characters to specify this
name. All matching device classes are displayed. If you do not
specify a value for this parameter, all device classes are displayed.
- Format
- Specifies how the information is displayed. This parameter is
optional. The default value is STANDARD. Possible values
are:
- Standard
- Specifies that partial information is displayed for the specified device
class.
- Detailed
- Specifies that complete information is displayed for the specified device
class.
Examples
Task
Display information on all device classes.
- Command:
- query devclass
- Output:
-
+--------------------------------------------------------------------------------+
|Device Device Storage Device Format Est/Max Mount |
|Class Access Pool Type Capacity Limit |
|Name Strategy Count (MB) |
|----------- ---------- ------- ------ ------ -------- ----- |
|8MMTAPE Sequential 1 8MM DRIVE 6,144.0 2 |
|DISK Random 4 |
|PLAINFILES Sequential 1 FILE 50.0 1 |
|8MMSP2 Sequential 2 8MM DRIVE 44.4 DRIVES |
+--------------------------------------------------------------------------------+
Task
Display information in full detail on the PLAINFILES device class.
- Command:
- query devclass plainfiles format=detailed
- Output:
-
+--------------------------------------------------------------------------------+
| Device Class Name: PLAINFILES |
| Device Access Strategy: Sequential |
| Storage Pool Count: 1 |
| Device Type: FILE |
| Format: |
| Est/Max Capacity (MB): 50.0 |
| Mount Limit: 1 |
| Mount Wait (min): |
| Mount Retention (min): |
| Label Prefix: |
| |
| Library: |
| Directory: |
| Server Name: |
| Retry Period: |
| |
| Retry Interval: |
| Shared: |
|Last Update by (administrator): ADMIN |
| Last Update Date/Time: 05/31/2000 13:15:36 |
+--------------------------------------------------------------------------------+
- Device Class Name
- The name of the device class.
- Device Access Strategy
- How data is written to the device class.
- Storage Pool Count
- The number of storage pools that are assigned to the device class.
- Device Type
- The device type of the device class.
- Format
- The recording format.
- Est/Max Capacity (MB)
- The estimated or maximum capacity of a volume associated with the device
class.
- Mount Limit
- The maximum number of sequential access volumes that can be mounted
concurrently or specifies that DRIVES is the mount limit.
- Mount Wait (min)
- The maximum number of minutes to wait for a sequential access volume to be
mounted.
- Mount Retention (min)
- The number of minutes to retain an idle sequential access volume before
dismounting it.
- Label Prefix
- The high-level qualifier of the data set name that the server writes into
the sequential access media labels.
- Library
- The name of the defined library object that contains the drives used by
the device class.
- Directory
- The directory for a shared FILE device class.
- Server Name
- The name of a defined server.
- Retry Period
- The interval over which the server should attempt to contact a target
server if there is a suspected communications failure.
- Retry Interval
- How often the retries are done within a given retry period.
- Two-Sided
- Whether a removable file is two-sided.
- Shared
- Whether this FILE devclass will be shared between the server and one or
more storage agents.
- Last Update by (administrator)
- The administrator that made the last update to the device class.
- Last Update Date/Time
- The date and time of the last update.
Related Commands
Table 175. Commands Related to QUERY DEVCLASS
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