Explanation: TAPEEXPIRATIONDATE is an optional
subparameter of DUMPCLASS specifying a unique expiration date for
the dump tape header labels of all dump copies created in this dump
class.
DUMPCLASS(TAPEEXPIRATIONDATE(yyyyddd)):
For yyyyddd, specify a 7-digit number in the format of yyyyddd. The yyyy value and the ddd value are the
year and day of the year for the expiration date of the dump copies.
For yyyy, specify a year between the current year and 2155.
For ddd, specify a day between 001 and 366.
Defaults: None.
Note: - For TAPEEXPIRATIONDATE to be effective, the security options in
effect, as established with a SETSYS command, must include EXPIRATION
or EXPIRATIONINCLUDE.
- Values for yyyyddd of 1999365 and 1999366 are recognized
as “never expire” dates. Values of 1998000 and 1999000 are
recognized as meaningful to certain tape management systems.
- If you do not specify TAPEEXPIRATIONDATE for a dump class and
a tape security option of EXPIRATION or EXPIRATIONINCLUDE is in effect,
DFSMShsm provides an expiration date of 1999 for 365 days for dump
volumes written for this class.
- Past dates are not recognized as expiration dates.