On 2006-09-13 15:59, Stephen Carville wrote:
Ian Turner wrote:
On Monday 11 September 2006 01:48, Stephen Carville wrote:
I've been using Amanda for about five years now. The only problems I've
ever had are because a single dumps has to fit on a single tape.
If you upgrade to Amanda 2.5.x, then you can instruct Amanda to split
dumps across tapes; so you can make your partitions as large as you
like, and just use as many tapes as are required.
AFAICT, this doesn't really split the tar but tries to create separate
tars of subdirectories. Unfortunately RMAN puts it all in one directory
(There may be a way to split it -- I'm checking into that too).
AFAICT, (and I can tell it far enough, because I've done it, instead
of going about rumours!) no no, it really splits the bytestream on
tape, nothing to do with separate tar archives of subdirectories.
Even one big 400 Gbyte single file can be put on a a tape medium less
than 400 Gbyte capacity (but you need a changer).
http://wiki.zmanda.com/index.php/Splitting_dumps_across_tapes
Is it possible to get amanda to follow symlinks? Every file name ends
in a digit is it is trivial to do something like:
rm /empty/GIS1/*
find /NFS/euphrates_backup/GIS -name '*[1,3,5,7,9]' -exec ln -sf {}
/empty/GIS1/ \;
rm /empty/GIS2/*
find /NFS/euphrates_backup/GIS -name '*[0,2,4,6,8]' -exec ln -sf {}
/empty/GIS2/ \;
Then backup GIS1 and GIS2 as separate volumes.
Too complicated.
(And no, gnutar invoked by Amanda will not follow symlinks, too
dangerous: what if "ln -s ../.. up" or similar exists?)
Disklist entries like this will work just fine:
host.example.com GIS_UNEVEN /NFS/euphrates_backup/GIS {
comp-user-tar
include "./*[13579]"
}
host.example.com GIS_EVEN /NFS/euphrates_backup/GIS {
comp-user-tar
include "./*[02468]"
}
host.example.com GIS_REST /NFS/euphrates_backup/GIS {
comp-user-tar
exclude "./*[0-9]"
}
Note that I've added a "REST" archive for those files
not ending in a number. Always use such catch-all at the
end.
--
Paul Bijnens, xplanation Technology Services Tel +32 16 397.511
Technologielaan 21 bus 2, B-3001 Leuven, BELGIUM Fax +32 16 397.512
http://www.xplanation.com/ email: Paul.Bijnens AT xplanation DOT com
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