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Tape Retention

By rweraf13 ·
How long should a DAT tape be used for standard backup saves, ie how many mounts? I use HP DDS2. Is there a UNIX cmd to read stats of each tape (I know I can use 'tape status' to read the drive stats). I have SCO-UNIX 5.

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Tape Retention

by VinnyD In reply to Tape Retention

If you are just using the Unix TAR or CPIO commands for backup, there is no command to read the stats on each tape.

You have to be using a third party backup program that keeps track of the tape usage.

On my own Unix System I test one tape each week by doing a full restore to a test folder to make sure that I can restore. If I get an error on the tape, then I remove it from my backup cycle and replace it with a new one.

Some tapes last longer than others, so I have never really found astandard number of mounts to use the tapes for.

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by rweraf13 In reply to Tape Retention

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by PENGUINSRULE In reply to Tape Retention

If you are rotating through the tapes pretty good you shouldn't have a lot to worry about. That tape shouldn't be used more than once a month. If you are using it more than that, then increase the number of tapes you have and rotate. If you do that you shouldn't have much of a problem.

Rick

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by rweraf13 In reply to Tape Retention

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by Merv Amos In reply to Tape Retention

According to advice we have from HP, DDS-2 tapes should be used for a maximum of 50 backups (writes) and then replaced.

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by rweraf13 In reply to Tape Retention

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by rweraf13 In reply to Tape Retention

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