Explanation: STACK is an optional parameter
of DUMP, specifying the maximum number of dump copies to stack on
a dump volume in a specified dump class.
The list of stack values corresponds to the list of dump classes.
A dump volume in the first specified dump class will have no more
dump copies than specified in the first stack value, and so on.
| Subparameter |
Explanation |
|---|
| nnn |
STACK(nnn) specifies the stack value for the corresponding dump class.
This value overrides the value in the dump class definition. For nnn,
substitute a value from 1 to 255. |
| * |
STACK(*) is
specified as a placeholder to denote that the stack value for the
corresponding dump class should be taken from that dump class definition. |
Defaults: If fewer stack values are listed
than dump classes, stack values beyond those specified are taken from
the corresponding dump class definitions.
Note: - The BACKVOL command fails if the number of stack values that are
specified for STACK is greater than the number of dump classes that
are specified for DUMPCLASS.
- If you use BACKVOL to dump a single volume, the STACK parameter
is ignored.
- STACK is applicable only if DUMPCLASS is specified and the STACK
values apply to the specified dump classes.
- If DUMPCLASS is specified without STACK, the stack values are
taken from the dump classes that are specified.
- If neither DUMPCLASS nor STACK is specified, the stack values
for each storage group are taken from the dump classes that are associated
with that storage group.