Scratch Pooling › Using Scratch Pool Management › Describing the Scratch Pool and Access Rules

Describing the Scratch Pool and Access Rules

Scratch pools are assigned by adding control statements to two CAI.CTAPOPTN members:

• CTOSCRxx defines the tape pool name and the range(s) of volumes assigned to the tape pool
• CTONSMxx defines the rules for access to a tape pool

These two members are read by TLMSRIM during CA TLMS initialization.

Request a scratch pool by specifying the scratch pool name in the JCL VOL=SER= parameter, as shown:

//ddname   DD DSN=tape.dsname,DISP=(NEW,CATLG),UNIT=cart,
//         VOL=SER=poolnm,LABEL=(1,SL)

The scratch pool name must be six characters or less. If you use scratch pooling, you must specify at least one scratch pool assignment control statement in the CTONSMxx member. If the CTONSMxx member references at least one scratch pool, you do not need assignment control statements for scratch pools that are specified in the JCL.

Once CA TLMS is installed, you can maintain these members using your in-house text editing facilities.