Loudwater
Systems
Management


Bloat in MVS_ADDRSPACE_T

If you find this table growing very (unmanageably) large, look for rows where SUBSYSTEM_ID is null. This occurs when SYSOUTs are spooled or spun-off to other systems, including TSO XMIT, RJE, and files sent to VM. The rows are generated by extra SMF Type 26 records. Most fields in these rows will be empty. There will usually be no point in keeping these rows beyond 2 days after they've been created.

Execute DEFS(PURADDRN) to remove them, or PURADDRT in the normal purge job.