Amanda-Users

Re: amrecover performance and exclude list

2003-08-22 13:55:53
Subject: Re: amrecover performance and exclude list
From: Pascal Robert <probert AT cesart DOT com>
To: Paul Bijnens <paul.bijnens AT xplanation DOT com>
Date: Fri, 22 Aug 2003 13:46:10 -0400
Paul Bijnens wrote:

Pascal Robert wrote:

I have two questions for you:

1) any owners of HP SureStore DLT vs80 unit here ? If yes, what kind of performance do you have with amrecover. I did a recover this morning, it took 67 minutes to recover a single 2 bytes file. The backup take 7 minutes so are this unit is really that slow for reading ?


I don't have a such a drive, but I should be much faster.
The 7 minutes, is that the dump time (to disk) or the time to write
to image to tape?


Time to write to tape


How large was the image? How fast is the tape for writing (see amanda
reports)? What filenumber was it on tape?


Avg Dump Rate (k/s)      1697.2        --      1697.2
Avg Tp Write Rate (k/s)  1690.9        --      1690.9



Is the client a different machine (look for network problems)?

Yes, but same subnet. No, we didn't have network problems. The tape was busy all the time.


Did you specify "amrecover_do_fsf true" (should be much faster if the
image is near the end of tape).

I will try that.


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