On 2007-09-01 17:16, Gene Heskett wrote:
Greetings all;
I can recall when amanda would stay within 98% of filling a 4GB tape, and do
it reliably for weeks at a time.
But recently, the size of the backups has been varying more, like by as much
as 30% from nightly run to nightly run. I added a day to the schedule about
2 weeks ago because it seemed to be continually leaving 3 or 400MB in dumps
for the next nightly run to flush.
That should have brought the average fill ratio down to 70-75%. But last
night it did level 0's on 3 of the 4 biggest dle's, filled the vtape and quit
with 709MB left in /dumps, which was from 28 of the 31 dle's here. So I just
added yet another day to the dumpcycle and runspercycle.
However amadmin balance's output is till a bit scary:
[amanda@coyote ~]$ amadmin Daily balance
due-date #fs orig MB out MB balance
----------------------------------------------
9/01 Sat 14 7724 3948 -46.1%
9/02 Sun 1 520 259 -96.5%
9/03 Mon 4 13093 10921 +49.2%
9/04 Tue 6 12916 9176 +25.4%
9/05 Wed 10 24545 12292 +67.9%
----------------------------------------------
TOTAL 35 58798 36596 7319
DISTINCT 31 56718 35560
(estimated 5 runs per dumpcycle)
(1 filesystem overdue, the most being overdue 1 day)
What I don't grok is that the 9/01 data, which was last night, totally
disagrees with what it actually did. Which was 11.87GB & 98.5%, leaving
709MB in /dumps. Should this first line of a balance report not be a
truthfull answer since its after the actual fact?
Note that the dates from the balance are not the historical dates
(real numbers from the previous run), but future dates, i.e.,
it shows the amount that Amanda expects to process on that day (before
rescheduling to get a more equal balance).
I guess backup from last night actually started at 08/31?
About the reason of the imbalance, I can just guess. Need more
information for that...
--
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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