--On Thursday, June 02, 2005 15:10:51 -0700 Cameron Matheson <cmatheson3 AT
yahoo DOT com> wrote:
> Hi,
>
> --- Frank Smith <fsmith AT hoovers DOT com> wrote:
>> Unless you need something special for the new
>> machine (such as a different schedule or odd
>> requirements for data retention) it's easiest to
>> just increase runtapes to 2. A separate config
>> would cause you to use two tapes anyway (one for
>> each config) so the separate config wouldn't use
>> fewer tapes. Also, runtapes of two would allow your
>> existing data to grow past one tape's capacity and
>> still only use two tapes total even with the new
>> client.
>
> Sounds good. Now i read that if amanda run's out of
> space, it just restarts that file-system's backup on
> the next tape. Should i stick the big filesystem at
> the front of my disklist to ensure that it does just
> occupy one tape, or is that not an issue?
I'm not sure if the following answer is totally correct,
perhaps someone more familiar with the schedulling
wil respond with the exact details.
The order of the DLEs in your disklist has nothing to
do with the order they are actually written to tape.
Once the estimates are in amanda runs 'inparallel'
dumpers, and choses which ones to run first based
on your 'dumporder' specification. Obviousl, some
finish faster than others and I think each DLE gets
written to tape in the order it is finished and not exactly
the order you would expect if it first collected them all
on disk and then decided the order to write to tape.
I'm not clear if 'largest size' in dumporder means
exactly that or if it means 'largest size that will fit on
the space remaining', but I suspect the former.
My suggestion would be to break up your new
client into a few smaller DLEs and then it won't matter
as much. Plus, smaller DLEs can help reduce restore
times if you just need a few files or directories (obviously
it won't be faster if you need to restore the entire machine).
Frank
>
> Thanks,
> Cameron Matheson
--
Frank Smith fsmith AT hoovers DOT com
Sr. Systems Administrator Voice: 512-374-4673
Hoover's Online Fax: 512-374-4501
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