The Database Management Solutions for Db2 for z/OS Post Install Create (ssid0001) executes the ssidDDL member which is created when the Compare (ssid0000) is generated.
Prior to the reorg for PTITSMG1(RCM TS), the following template was used to allocate the .COPY:
TEMPLATE PTICOPY DSN '<hlq>.&DB..&SN..U9323.S&PA..COPY'
UNIT CART
This caused the following messages:
DSNU1015I 140 09:48:52.58 DSNUGDYN - ERROR ALLOCATING DATA SET
DSN=<hlq>.PTDB.PTITSMG2.U9323.S00001.COPY
CODE=X'02700000'
DSNU1042I 140 09:48:52.58 DSNUGDYN - START OF IDCAMS MESSAGES
IKJ56241I DATA SET <hlq>.PTDB.PTITSMG2.U9323.S00001.COPY NOT ALLOCATED+
IKJ56241I REQUEST REQUIRES MORE NON-SMS MANAGED VOLUMES THAN ARE ELIGIBLE
The solution was to change the TEMPLATE statement to specify SPACE CYLS instead of UNIT CART.
The esoteric is generated based on the NACTIVE number. In this example for TS PTITSMG2 the value was 177750 which is large.
The job ran successfully after changing to disk (SPACE CYLS).