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Parmlib Description

The Parmlib is a partitioned data set with fixed or fixed-block 80-byte logical records: DCB=(RECFM=FB,LRECL=80,BLKSIZE=6400,DSORG=PO). The Parmlib contains one or more members that contain CA Vtape parameters that are known as attributes. The related attributes are grouped into sections within a Parmlib member.

Sample Parmlib members containing the recommended settings for the CA Vtape attributes can be found in the HLQ.CCUUPARM library. The members are as follows:

OSPARMS

Parmlib member directory, startup options, and dynamic options.

OSDRIVE

Virtual tape control unit and drive definitions. Optional CHPID device list

OSGROUP

Group definitions and policies that are applied to the Virtual Volumes.

OSFILTR

Tape mount intercept filter lists.

OSPOOLS

Volume pools and VOLSER ranges. Optional Virtual Volume Size.

OSSCMDS

Startup commands.

OSPCMDS

Shutdown commands.

These members together comprise one complete set of all the attributes that CA Vtape uses. Each member contains one or more sections containing information that CA Vtape uses at startup, shutdown, or during normal operations. This information is split into multiple members to make management and maintenance easier. If desired, you can combine one or more members or all members into a single member.