February 2010
Intermediate to advanced
460 pages
16h 22m
English
book
z/OS Distributed File Service zSeries File System Implementation z/OS V1R11
by Paul Rogers, Robert Hering
Content preview from z/OS Distributed File Service zSeries File System Implementation z/OS V1R11
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Chapter 5. Sysplex considerations 219
In previous z/OS levels, a particular problem is quiescing a zFS aggregate. When DFSMS is
used to back up a zFS aggregate, the aggregate is quiesced by DFSMS before the backup.
For this quiesce to be successful, it must be issued on the system that owns the aggregate. If
it is issued on any other system in the sysplex, the quiesce fails and the backup fails, too.
It is a problem to issue the backup on the owning system because ownership can change at
any time as a result of an operator command or system failure. See 4.3.5, “Restrictions on
quiescing zFS aggregates” on page 172 and 4.3.6, “Using MOVEAGGR to back up UNIX
System Services file systems” on page 173 for more information about this topic.
In z/OS ...
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