[rescue] Re: how to utilize multiple tape drives in the same library/silo with Amanda...

[Greg A. Woods]

[ On Monday, July 22, 2002 at 12:43:33 (-0400), nick at snowman.net wrote: ]
> Subject: Re: [rescue] Re: how to utilize multiple tape drives in the    same library/silo with Amanda...
>
> Ahh, thanks for reminding me of another amanda killer on real FSs.  Amanda
> wants a FS as big as your biggest FS to buffer in.  That's irrational on
> most real sized (.5tb+) file systems.

Indeed -- that's why it's an option.  You're free to go direct to tape.

>  Works fine for most hackers, but
> that's a hell of a limit.  I know you can skip it, and I've never
> personally benchmarked w/ cache FS vs w/o cache FS, but the amanda FAQ &
> docs make it very clear that a cache FS is nearly required (it's entirely
> possible that that requirment is no longer real, and the docs just havn't
> been updated, but amanda should still be able to do partial FS
> cacheing).

The cache disk is of course required for any sane network backup
performance.  Do the math.

-- 
								Greg A. Woods

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