Joe Konecny wrote:
FreeBSD 5.2.1, Amanda 2.4.4p2
Had to do the first real amrecover today and it was
painfully slow. I am using indexing and the file
to recover was about 140K. It took from 14:47 to
16:22. Any tips? Here is a link to the debug file
if anyone wants to look at it... (It's about 500K)
http://www.green-mfg.com/amrecover.20041019144747.debug
Different possibilities.
First make sure the network is not in the way (e.g. a duplex
mismatch on one of the switches, frequent mistake).
Then, do you have "amrecover_do_fsf yes" in the configuration?
If not, then amanda will skip over the tape files by reading them.
If the image you need in near the end, that can take a while.
Next, how large is the image itself. If the dump file is 30 Gbyte
then it still takes some time to crawl through that amount to locate
your 140K file. A tape device is a sequential device. Indexing
with amanda does not turn it into a random access device.
What is the raw speed of the tapedevice? Is it a DDS1 reading at
200Kbytes/sec, or is it some superfast device doing 12Mbyte/sec
sustained? (Over a 100Mbit switch that's still limited to 6 Mbyte/sec,
maybe stops streaming on the tapedrive.)
--
Paul Bijnens, Xplanation Tel +32 16 397.511
Technologielaan 21 bus 2, B-3001 Leuven, BELGIUM Fax +32 16 397.512
http://www.xplanation.com/ email: Paul.Bijnens AT xplanation DOT com
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