Shared file system implications during a planned shutdown of z/OS UNIX
These sections contain the procedures to use when shutting down z/OS® UNIX.
It is important that you understand the system actions that result
when you use those procedures.
The current AUTOMOVE option dictates if and how the participating
group recovers file system ownership from an exited system. It has
no effect on the manual movement of the file system. However, when
you are using the procedures for shutting down z/OS UNIX to
prepare for a planned system outage, the AUTOMOVE option does apply.
This can be explained with the following rationale:
- A system failure does not provide any means for manual intervention. The AUTOMOVE option provides a set of rules for automatic recovery.
- A request to move a file system manually is a deliberate action on behalf of an authorized user or administrator, and should override any rules for automatic recovery.
- Using tools to prepare for a system outage is also a deliberate action on behalf of an authorized user or administrator, but you are using these tools in an environment that can be customized to allow for additional manual intervention. You can synchronize data before the system outage, and then manage the planned outage in the same way as the unplanned outage, by making use of the automatic recovery rules that are supplied by the automove options. If you prefer some other action, you can perform manual intervention to move specific file system ownership before you use these methods for shutdown preparation.
Use F OMVS,SHUTDOWN to shut down file systems. It is described in What F OMVS,SHUTDOWN does. If this is not appropriate for your installation, use the F BPXOINIT,SHUTDOWN=... procedure described in Planned shutdowns using F BPXOINIT,SHUTDOWN=....