If you are changing the definitions of management classes, you
must know when the new definitions will take effect. When DFSMShsm
begins automatic availability management or availability management
from a volume command, it retrieves a list of all currently defined
management classes before it begins processing unless volume-type
processing is operating or has just completed. Volume-type processing
consists of the following functions:
- Automatic backup
- BACKVOL command
If volume-type processing is in progress or has just been completed
when a new volume-type processing is to begin, DFSMShsm uses the list
of management classes that exists from the prior processing. If you
are changing the management classes, DFSMShsm must complete its volume-type
processing before you can expect the changes in the management classes
to become effective.