CSC and Control-M/Tape Mount Messages

Use the following step to implement scratch pooling in your StorageTek Silo:

1. Specify M or Y for the DYNWTO parameter in the CTTPARM member (through Control-M/Tape step 2.2 in ICE). This causes Control-M/Tape to include the name of a scratch pool in the mount messages.

   Note: If you are not using scratch pools under Control-M/Tape, specify N for the DYNWTO parameter in the CTTPARM member so that the mount message is not changed by Control-M/Tape.

2. Use the SCSUX01 CSC job processing user exit to interpret the pool name in the Control-M/Tape mount messages.
   1. Edit the SCSUX01 member in the IOA SAMPLE library. Locate the POOLTAB table at the bottom of the exit. List each Control-M/Tape pool name with the associated CSC pool index number and save the member.

      In the following example, the POOL-1 Control-M/Tape pool is associated with CSC pool index number 1 and the POOL-2 Control-M/Tape pool is associated with CSC pool index number 2:

      POOLTAB  CSCPOOL TYPE=START            
         CSCPOOL NAME=POOL-1,INDEX=1   
         CSCPOOL NAME=POOL-2,INDEX=2   
          CSCPOOL TYPE=END            

   2. Use the ICE Automatic Exit Installation Tool to compile the SCSUX01 member. For details about this tool, see the exits chapter in the INCONTROL for z/OS Administrator Guide.
   3. Copy the SCSUX01 exit (compiled in the previous step) to the CSC LOAD library.