Is there a way to verify that the backup tape actually contains the files that were backed up during the backup procedure? Even though the backup procedure might be successful, the files may not be copied correctly to the tape. There was an incident on another platform in which the message after the backup always indicated it was successful, but when we went to do a restore, due to a system crash, the files on the tape could not be read because the tape was bad or the drive was bad. I have seen some backup procedures that will re-read the tape and list the number of files and total blocks on the tape. Is something like this possible on the iSeries?
Yes there is, it is called DSPTAP (Display Tape).
Use the following command to completely read a backup tape and create a report of it's contents:
DSPTAP DEV(TAP07) DATA(*SAVRST) OUTPUT(*PRINT)
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