Managing Software Changes (G06.24+)

Resources for Managing RVUs and SPRs
Managing Software Changes—427169-003
2-10
SPRs for Special Consideration List
Example 2-3. General Information Hotstuff Message
HOTSTUFF HS02734
NSK: ABENDRETENTION Might Be Erroneously Applied to Entire VOLSET
05JUN02
PLATFORM: NSK
SUMMARY:
When a process that is writing the second or subsequent tape file to a
tape volume set fails, ABENDRETENTION might erroneously be applied to
all tape files of the volume set. This situation can cause premature
expiration of tape files.
DETAIL:
DSM/TC uses the MEDIADEFS setting RETENTION to specify how long to
keep tape files. Tape files normally expire after the number of days
specified by the value of RETENTION. If the process writing a tape
file terminates abnormally, however, the MEDIADEFS setting
ABENDRETENTION is used to determine when the tape file expires.
ABENDRETENTION is normally set to zero or a smaller number of days
than RETENTION.
In current DSM/TC software, a defect sometimes causes ABENDRETENTION
to be erroneously applied to previously existing tape files on the
volume set that were completed normally. This situation occurs only
under the following circumstances:
- The second or subsequent tape file is being written to a particular
tape volume set.
- One of the following statements also applies:
- The tape file is being written to a LABELS BACKUP tape volume in
an appendable pool, and the process writing the tape file
terminates abnormally after the tape file is added to the DSM/TC
database but before the tape drive containing the tape volume is
opened by the requesting application.
- The tape file is being written to a LABELS ANSI or LABELS IBM
(non-BACKUP) tape volume, and the process writing the tape file
terminates abnormally after it begins writing data to the tape but
before it finishes.
When this situation occurs, ABENDRETENTION is applied to all tape
files on the tape volume set instead of just to the incomplete tape
file. Existing tape files can then expire prematurely if
ABENDRETENTION is less than the RETENTION value of those tape files.
FIX PLAN
The fix for this problem will be in T6958, Labeled Tape; T6027,
Mediacat; or both.