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General 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). It contains one or more members that contain CA Vtape parameters known as attributes. 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:

VTPARMS

Parmlib member directory, startup options, and dynamic options.

VTDRIVE

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

VTGROUP

Externalization and DASD buffer definitions.

VTP2POPT

Local TCP/IP definitions for the CA Vtape P2P Option.

VTP2PRMT

Remote TCP/IP definitions for the CA Vtape P2P Option.

VTFILTR

Tape mount intercept filter lists.

VTPOOLS

Volume pools and volser ranges used by CA Vtape.

VTSCMDS

Startup commands.

VTPCMDS

Shutdown commands.

VUSSMNTS

UNIX file system mount points used by USS Backstore.

These members together comprise one complete set of all the attributes used by CA Vtape. Each member contains one or more sections containing information used by CA Vtape 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.