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Status Future consideration
Workspace Db2
Created by Guest
Created on Mar 23, 2023

There is no method to quickly get the "minimum recovery time" of a backup image

It is not possible to get the "minimum recovery time" of a backup image without first restoring the image or by using 'db2ckbkp -l' but it is also too long as it has to read the entire backup image (this can be long if the image is stored on TSM / VENDOR).

Restoring or using 'db2ckbkp -l' on one of few backups to get the one to use can be a huge waste of time.

Please implement a way to get the "minimum recovery time" quickly.

Please check case : TS011154460.

Needed By Quarter
  • Guest
    Mar 23, 2023

    It could be recorded in the history file on completion of the Db2 backup, making it eaily acessible via db2 list history backup all for db xxxx. The current "End Time" listed is not same the minimum recovery time show by db2ckbkp -l or the db2 rollforward db xxxx query status "Last committed Transaction". By recording it the history file it would also be easily accessible via the SYSIBMADM.DB_HISTORY view.
    What is really being requested is the timestamp of where the "db2 rollforward db CSNXDB to end of backup and complete" will end up at, if you attempt to do a rollforward to less than this time it will fail.
    Therefore knowing this time ahead of doing the resotre will help determine if the restore will be successfully to resolve the issue encountered that you are trying to recover from.