DFS0448I VSAM HIPERSPACE BUFFERING INVALID|UNAVAIL|FAILED FOR SUBPOOL SIZE nnnnn, POOL ID xxxx
Explanation
VSAM Hiperspace buffering is invalid when specified on a subpool size less than 4 K bytes. VSAM Hiperspace buffering is unavailable for the indicated subpool size because of insufficient expanded storage, and the Hiperspace buffers were defaulted or specified as optional.
VSAM Hiperspace buffering failed for the indicated subpool size because of insufficient expanded storage, and the Hiperspace buffers were specified as required.
If multiple shared resource pools were requested, POOL ID xxxx indicates the shared resource pool in error.
System action
For INVALID or FAILED, IMS initialization abnormally terminates with abend 0430.
For UNAVAIL, initialization of IMS continues without Hiperspace buffering for the identified VSAM subpool.
Programmer response
Remove any Hiperspace buffering specifications on buffer sizes less than 4 K.
If sufficient expanded storage exists and this message indicates that storage is unavailable, try increasing the z/OS® SRM values in the IPS statement for PWSS=(min,max). See z/OS MVS Initialization and Tuning Guide (SA22-7591).