When running in a multiple address space DFSMShsm (MASH) configuration
where XCF services are not available, the following should be considered:
- Long running functions on other DFSMShsm hosts (including those
that start before automatic CDS backup) will not release the resources
required to allow CDS backup to obtain an exclusive lock. This prevents
starting CDS backup.
- The enqueue prevents all data set or volume-type functions from
accessing the control data sets while they are being backed up. Therefore,
you should carefully consider the best time to start backup of the
control data sets.