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At the moment, speed is not so much the issue as is the backup size.
Speed _will_ become the issue soon. I know the current tape setup is the
slow point as I can do a dump to a spare hard drive in a significantly
less amount of time as to the tape. I don't have hard numbers as I have
not set timers (next time I will).
> 
> I've done a fair amount of consulting in the backup area, and the issue
> is rarely the tape.  Normally it is the small size of the files and disk
> and/or disk fragmentation issues.
> 
> If your backup software will let you backup to /dev/null, try that and
> see how fast it runs.
> 
> HP recommends that a /dev/null type test be able to run at 2x to 3x the
> speed of your tape drive, otherwise the tape buffer will occasionally
> empty out and the shoe-shining mode will kick in.  Shoe-shining is
> _very_ slow.
No shoe-shinning with ecrix drives. They can slow to a stop and wait for
data.

Found a link to using RAIT under Amanda that looks very promising.
<a  rel="nofollow" href="http://www.oops.co.at/AMANDA-docs/rait.html";>http://www.oops.co.at/AMANDA-docs/rait.html</a>

&gt; 
&gt; Greg
-- 
James P. Kinney III          \Changing the mobile computing world/
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<li><strong><a name="00056" href="msg00056.html">[ale] Tape RAID?</a></strong>
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<li><strong><a name="00057" href="msg00057.html">[ale] Tape RAID?</a></strong>
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<li><strong><a name="00058" href="msg00058.html">[ale] Tape RAID?</a></strong>
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