Overriding disposition specification - Key = '0005'
DUNOVDSP specifies a disposition that overrides the disposition
assigned to a data set when it was allocated. When you code DUNOVDSP,
# and LEN must be one, and PARM contains one of the following values:
- X'01'
- An overriding disposition of UNCATLG
- X'02'
- An overriding disposition of CATLG
- X'04'
- An overriding disposition of DELETE
- X'08'
- An overriding disposition of KEEP
Example: To specify an overriding disposition
of CATLG, code:
KEY # LEN PARM
0005 0001 0001 02Note: Dynamic allocation ignores this key if any of the
following are true:
- The overriding disposition was DELETE and the data set was originally allocated as SHARE.
- The data set was originally allocated with a disposition of PASS.
- The data set is a VSAM data set and SMS is not active on the system.
- The data set is a non-subsystem data set that has a system-generated name.
When dynamic allocation must ignore a DUNOVDSP request, it still performs the deallocation processing, but uses the disposition from the original allocation request.