In my shop we did the following :
a) Physical backup or volume dump once a week
b) Selective or logical backup daily except on the day the disk dump/volume
backup is taken
c) The disk dump/physical backup was kept for 8 weeks, the logical backup was
kept for 5 weeks
d) To recover the LPAR (e.g. disaster recovery) we restored all volumes from
the physical volume dump/backup.
I never encountered any problems (dsn recovery or LPAR/Disaster recovery using
the above procedure.
Hope this is helpful
Willie
On Tuesday, October 14, 2025 at 11:57:32 p.m. EDT, Peter
<[email protected]> wrote:
Hello
Just trying to understand some of your experience about physical tape
backup up.
I know almost most of the shops are tapeless.
But when you had physical tape ,
1 ) What are the files you backed up to 3590 ?
2 ) what was the retention period you followed for database , system
volumes and user datasets ?
3 ) Generally to recover an entire lpar from a physical tape a volume level
backup for an entire lpar would suffice ?
Any information on the above would help me to research further.
Regards
Peter
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