Scratch Pools › Scratch Pool Assignment File › Record Format

Record Format

DSN=data.set.name,JOB=userid,POOL=pool.name

An asterisk (*) or hyphen (-) can be used in the DSN and JOB values as a mask that matches an arbitrary number of characters. If you use either pattern-matching character, it must be the last character in the string. Characters must not be in mixed case.

During a scratch mount, the data set name parameters of the assignment rules are compared to the DSN specified on the MOUNT command. If a match is found, the user ID requesting the mount is compared to the JOB parameter. If the JOB parameter also matches, the scratch mount is assigned to the specified pool.

The following examples demonstrate ways to specify pool assignments:

• Specify that any scratch tape requested by a user ID beginning with the characters TEST must be assigned to the SYSTEM.TEST pool:

  DSN=*,JOB=TEST*,POOL=SYSTEM.TEST
  

  Because an * is permitted in the DSN and JOB parameters, more than one assignment rule can satisfy a request. In the case of multiple data set name matches, the more restrictive data set name match is used. ABCD* is more restrictive than ABC*, and ABCD is more restrictive than ABCD*. In the case of identical data set name masks, the job name is used as final arbiter.

• State that any user ID beginning with the characters TECH requesting a scratch tape with a data set name of LAUNCH.DATA.FAILURES is assigned to the TOP.SECRET pool. Any data set name beginning with LAUNCH.DATA (and not followed by .FAILURES) is assigned to the SECRET pool. Scratch requests with any other data set names are assigned to the CONFIDEN pool:

  DSN=*,JOB=TECH*,POOL=CONFIDEN
  DSN=LAUNCH.DATA*,JOB=TECH*,POOL=SECRET
  DSN=LAUNCH.DATA.FAILURES,JOB=TECH*,POOL=TOP.SECRET