On Thursday 23 October 2003 22:14, Paul Yeatman wrote:
>Hi, I was once given the impression that chunksize in the
> amanda.conf could be used to control at what size a backup image
> would be written to tape instead of to holding disk.  From reading
> what is in the man page, I certainly wouldn't get this idea.
>
>I made the following note in my amanda.conf at one time (possibly
> the negative sign alters the meaning?):
>
>       # chunksize -1370 Mb      # in my own words, this tells
>                              # amanda to use a single file on the
> holding # disk for any filesystem < 1370 Mb while # writing any
> filesystem > 1370 Mb directly # to tape
>
>I'm now questioning whether any of this is true.  I seem to also
>vaguely remember something being said to me once about chunksize not
>even being used by AMANDA anymore.  Any comments to any of this?
>
>Thanks,
>
>Paul

Chunksize was originally a workaround for some filesystems file size 
limitations.  When in use, the ONLY place it effects is the holding 
disk by breaking up a huge 30 gig total filesystem into files that it 
can handle in say, 2 gig hunks.  These files are merged into one big 
file on the tape itself, and all chunks must be completed for a given 
filesystem before the transfer to the tape begins.  And all chunks 
must have been written to the tape before any chunks are deleted from 
the holding disk.

-- 
Cheers, Gene
AMD K6-III@500mhz 320M
Athlon1600XP@1400mhz  512M
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by Gene Heskett are:
Copyright 2003 by Maurice Eugene Heskett, all rights reserved.