Hi Jack and Eric!
I had the same requirements some weeks/months ago. After searching
around in the man-pages, FAQs, WiKis and mailing list, the only thing
that was repeatedly pointed out to was the sorted tapelist (descending
after backup date).
However, it seems that no one has released a script yet. So I had to
browse through the C-sources and see what is done in the "amadmin
<config> tape" command. As a result I wrote a small perl-script with the
following syntax:
amnexttapes <config> <number of runs>
which shows the next reusable tapes for the next <number of runs>
amdumps for a given config. It also makes some sanity checks (according
to the C-sources) and takes runspercycle and runtapes into account.
--- if you have a library, there a some more scripts ---
Since I have a library (using the chg-zd-mtx changer) I wrote a small
script `amtx <config>` whih combines the normal mtx (linux) with the
barcodes-file and the tapelist to see the labels and backup dates. This
gives a nice overview whats in the library. Furthermore is used by
another script "scan-library".
The `scan-library <config> <number of days ahead to scan for>` shell
script gives an output like the following:
25 backup@data:scan-library DailySet1 5
requested: 5
slots: 8
tapesfound: 8
free: 4
needed: 1
So, there are 8 slots reserved for the DailySet1 config, all 8 slots are
filled with tapes with the respective label (tapesfound), 4 tapes are
free (reusable) for the next runs and since I wanted to know if I could
make it for the next 5 runs (=days in my case as I have runtapes set to
1) I get a difference of 1 tape that is needed to fulfill the requirement.
I use a "dailyscan" script run per cron every day which simply calls
`scan-library DailySet1 1` with some output that is mailed to me, if
there's no tape left for the next day. But this script doesn't really
provide something new since an amcheck -t <config> does it better,
because it not only checks the next tape, but also if the tape has an
amanda-header and the right label.
-> Another script `weekendscan` run by cron gets the "current" day of
the week via `date +%w` (with monday=1 .. sunday=7) and is handy because
a `scan-libary DailySet1 (8-$dow) |grep "needed"|awk '{print $2}'` gives
me the number of tapes that are neccessary for the backup to run
unattended on the weekend. (If needed=0 -> OK, otherwise send a mail to
backupadmin)
----------------- end of library script stuff -------------
If you'd like to have one or more scripts, send me a note.
BTW, did you find some scripts/progs in that matter so far (and where?).
I would be interested to enhance and/or fix bugs, share infos on the
topic. I could also set up a small amanda web-page with my scripts if
there is no such thing (tm) till now :)
Cheers,
-Roli
Jack Twilley wrote:
"Eric" == Eric Sproul <esproul AT ntelos DOT net> writes:
Jack> I looked through the manual pages for amtape and amadmin but
Jack> couldn't find a command to tell me which of the tapes in my
Jack> tapelist were able to be reused at that time -- all of my tapes
Jack> are labeled "reuse" in the tapelist, but there's nothing to tell
Jack>
Jack> Am I missing something painfully obvious?
Eric> Well, I'm not sure. :)
Eric> The tapelist also contains the date on which the tape was last
Eric> written, with the most recent at the top (the list is ordered by
Eric> date in descending order). So the oldest tape will be at the
Eric> bottom of the list.
Well, actually, the bottom of the list was an unused tape.
Eric> Is that what you wanted to know?
What I was hoping for was something like this:
Run the command "amsomething <config> <somethingelse>" to list all
tapes that are eligible for immediate reuse.
Eric> Eric
Jack.
--
DI Roland Schützner
All Information Network & Services GmbH
email: roland.schuetzner AT ains DOT at
phone: +43/662/45 23 35-20
fax: +43/662/45 23 35-90
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