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Use this command to define a new recovery log volume. All recovery log volumes must reside on a random access media.
Attention: You cannot change the size of an allocated recovery log volume after you have defined it to TSM. If you change the size of TSM volumes by using external operating system utilities TSM may not initialize correctly and you could lose data.
Before issuing this command, you must allocate and format the volume by using the ANRFMT job or the ANRFMT2 job found in the SAMPLIB dataset. For information on using these jobs, see Administrator's Guide.
A recovery log volume must be at least 9MB. Storage space is used in 4MB blocks and 1MB is used for overhead purposes. For example, if you define a recovery log volume with a capacity of 9MB, 8MB are available for storage on the volume.
Privilege Class
To issue this command, you must have system privilege or unrestricted storage privilege.
Syntax
>>-DEFine LOGVolume--volume_name-------------------------------><
Parameters
Specify a standard VSAM cluster name. A VSAM cluster name consists of one or more qualifiers, which are delimited by periods. The length of each qualifier is from 1 to 8 alphanumeric characters. The maximum length of the cluster name is 42 characters. An example is TIVSM.BFS.POOL2.VOLA.
Examples
Task 1
Define a recovery log volume named GLEDDIE.TIVSM.PLOG.
Related Commands
Table 50. Commands Related to DEFINE LOGVOLUME
Command | Description |
---|---|
DEFINE LOGCOPY | Creates a volume copy of a recovery log volume. |
DEFINE SPACETRIGGER | Defines the database or recovery log space trigger. |
DELETE LOGVOLUME | Deletes a volume from the recovery log. |
EXTEND LOG | Extends usable log storage within the volumes previously allocated for its use. |
QUERY LOG | Displays allocation information about the recovery log. |
QUERY LOGVOLUME | Displays information about log volumes. |
UPDATE SPACETRIGGER | Changes attributes of the database or recovery log space trigger. |