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In a message dated: Thu, 02 May 2002 13:24:04 EDT
mike ledoux said:
>Of course, this is also going to have a negative impact on your
>compression ratio, depending on how small these 'chunks' are. I'm going
>to hazard a guess based on my admittedly limited understanding of the
>compression algorithm gzip uses that at chunk sizes small enough to
>reasonably work around bad blocks on the tape that gzip compression
>probably isn't very effective.
I have no idea. I know that many, many people are using amanda with
gzip quite successfully, so I'm going to hazard a guess that the
designers of amanda have thought all this through and or debated it
several times before.
I've been using Amanda since about 1995, and never had a problem
restoring data from one of it's tapes.
(well, there was the one time I couldn't get the requested data of
the tape, when one idiot called and said:
"I got this e-mail this morning which I accidently deleted,
and it was really important. Could you please restore it
from last night's backups?"
He was promptly told he was an idiot, but then some how convinced his
manager to convince my manager to have me waste my time looking for
this non-existent e-mail :(
Amanda worked flawlessly though, the e-mail, as expected, was not on
the tape :)
- --
Seeya,
Paul
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