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find out number of tape repositionings/rewindings during backup?


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Is there any way to find out the number of tape repositionings/rewindings that happened during a backup? (They are caused by an insufficient data supply rate to tape drive, right?)


It would be good to know how much this happened, as if it was happening I could revise my strategy (e.g. move to staged backup strategy.)

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Many tape drives have diagnostic utilities to provide this information. Retrospect cannot provide this information because it has no access to it. It simply does standard read/write and positioning calls. The tape automatically does the repositioning ("backhitching"); it's not done by Retrospect.


See what your tape drive manufacturer offfers.


You are correct as to the cause.



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