Should IXMAINT be excluded from failover processing to the Shadow MUF ?
Yes, IXMAINT should be excluded from failover processing to the Shadow MUF.
Sysparm DCOMFAIL is normally set to RR in the SYSPARMS member to enable failover processing
to the Shadow MUF. However, Sysparm DCOMFAIL should be overridden with value SS in the IXMAINT
job to stop failover processing because IXMAINT's massive amount of FDB processing should remain
with a local MUF rather than failover to a remote MUF with extensive XCF and extended run-times.
We mention to run IXMAINT with a local MUF in the Integration Guide.
When DCOMFAIL is set to SS, the first S means to exit the IXMAINT as soon as possible
at a data set boundary when a LOCAL DISKMUF goes to EOJ. The second S indicates to do
the same when a NON-local DISKMUF goes to EOJ.
Release: SMDI3900200-12.5-Disk-Backup and Restore-for z/OS