Originally posted by: SystemAdmin

On the night of Dev 25, my prod AIX server had a power failure. But after it power on, the tape did not continue to do the backup job which had been running for previous 8 days. It did not rewind or continue, just stayed at where the power stopped. My log record showed a message of the backup for "tar: /dev/rmt0.1: The device is not ready for operation". Only after I rewind and reload the tape several times, the tape finally moved. The tape is HP DAT 72 SCSI 4 mm. It definitely did not run out of tape and is a new tape.
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Originally posted by: nagger

So what is the question?

I am not surprised the tape drive was confused about its state.
it would power up and not understand that there is a tape loaded and have no idea where along the tape it is.

I assume you mean you are running a backup once a day rather than an 8 day single backup!
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Originally posted by: SystemAdmin

There is a cron job backing some file to the tape every morning. It had been running OK for previous 8 days until the power failure on Xmas day. My question is - If there was a tape in the tape drive, so when the server was power on again, why could not it continue the cron job? What do you mean "it .. not understand that there is a tape loaded"? why the "tape drive was confused about its state" ?
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