Re: Monthly archival tapes
2006-08-08 16:31:01
On 8 Aug 2006, at 19:02, Toomas Aas wrote:
Joe Donner (sent by Nabble.com) wrote:
dumpcycle 0 (to force a full backup on every run, because all our
data fit
comfortably onto a single tape every night, and amdump only runs
for 4.5
hours)
Lucky you :)
runspercycle 5 days (to do an amdump each day Monday to Friday)
tapecycle 21 tapes (to have 4 weeks' worth of "historical backups"
+ one
extra tape for good measure)
How do I now handle taking out one tape a month for long-term
archiving? If my tapes are labelled daily-1, daily-2, etc., then
how do I take out one
tape a month but make sure that this doesn't confuse amanda, and
that I will
be able to restore from that tape in the future?
Just pick the tape you want to take out of the rotation and mark it
as no-reuse with amadmin.
Do I add a new tape each time in my numbering sequence?
IMHO this is the best solution. Just add in a new tape and amlabel
it with next number.
Can I reuse tape labels but somehow cause amanda to not overwrite the
information needed to do restores from the archived tapes?
I guess you could maybe do this if you really want to. Copy the
necessary log and index files to somewhere outside the Amanda
directories, then amrmtape the archived tape and amlabel the new
tape with the same label. Then you could use amrestore to restore
from these tapes without indexes, or copy in the index and log
directories you previously moved out of the way and use amrecover.
But I think this way you would just make restoring more difficult
for yourself. And restoring is the part of backup that really
should be easy, because often you need to do it quickly with The
Boss breathing at your back :)
In your place I would just keep on labelling new tapes with ever-
increasing numbers. Actually, this is exactly what I do in my setup.
--
Toomas
Guys,
On this subject, I'd like to do something similar. Unfortunately my
backups don't fit on one tape !
How can I take a _complete_ backup off site in this situation, and
how can I identify which tapes I need to take ?
Cheers,
--
AlanP
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