Did the files copy correctly during backup?
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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This was first published in April 2004