Re: Dell Ultrium 3 tapetype
2005-10-31 15:38:03
Joshua Baker-LePain wrote:
On Wed, 26 Oct 2005 at 4:06pm, Jason Castonguay wrote
define tapetype Ultrium3 {
length 414386 mbytes
filemark 1889 kbytes
speed 10881 kps
}
Not that it's used by amanda for anything, but your speed seems awfully
slow. I don't know if that's a symptom of amtapetype or not (LTO3
drives are fast compared to *hard drives*, never mind your standard tape
drive), but to get my LTO3 drives to run anywhere near their rated
speeds I had to use a blocksize > than amanda's default 32K. To do
*that*, you'll need to use the --with-maxtapeblocksize flag at configure
time. I'm using 2M blocks.
Would it be a good idea to round any of these values down?
Generally it's not a bad idea to round the tapelength down a bit,
especially if you find yourself hitting EOT frequently.
hmm... well, using the -b 2M flags.
length: 404488 mbytes
filemark 266 kbytes
speed 10793 kps
Should I play with this more? I'm not sure what else to do to get more
speed out of it.
Thanks,
--
Jason
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