CASKC0007W Shared memory storage constrained

The system shared memory resource limit has been reached. The shared storage cushion will be released and made available to the system. Any GETMAIN SHARED or LOAD HOLD requests will be rejected until the critical memory condition is alleviated. Any tasks which require more storage than is available will will be suspended until the storage requirements can be met.
System Action:
Make the shared storage cushion available and suspend any tasks which require more memory than is available until their requirements can be met.
Resolution:
If this is a common occurrence increase the number of shared pages in the SIT.
Module:
casmgr
Destination:
System Console.