Scenario 4: Mount, unmount, or quiesce processing seems to be delayed

Mount, unmount, or quiesce processing is delayed on one or more systems in the sysplex. The root cause of the delay is a file system serialization problem, involving either:

• A GRS latch in the file system latch set (SYS.BPX.A000.FSLIT.FILESYS.LSN)
• The serialization data that is maintained in the type BPXMCDS couple data set.