Re: dumpcycle - amanda with a mind of its own
2003-01-08 18:35:49
On Wednesday 08 January 2003 13:24, Marvin Davenport wrote:
>I am using disk storage with 14 "tapes", amanda keeps filling up
> the disk by doing toooo many full dumps, I have set what I
> thought would be a 2 week full dump schedule, but you can see on
> disk listed I am getting a full dump every 3 days?
>
>amanda.conf parameters
>dumpcycle 14 days
>runspercycle 14
>tapecycle 14
The above combines to mean that you will be, if amanda works as you
would like it to, be overwriting your only full backup with a new
recording. It could be bad, and then you are out of luck as you've
just overwritten the only copy you had.
If you only have 14 tapes, and acquiring more isn't an instant
option, then I would reduce the dumpcycle and runspercycle to maybe
7 each, which would allow access to one older generation of backup
in the event the most recent is foobar. Maybe I'm paranoid, but I
have the tape capacity to do it, so dumpcycle and runspercycle are
5 here, with a tapecycle of 28 tapes on the wall.
This might also be an effect of amandas useage balancing scheduler,
looking for enough data to be worth the effort of fireing up the
drive. One of the reasons I have a 5 day cycle is that this uses
somewhere between 2/3rds and 4/5ths of a tape per run, on a 4 gig
tape (dds2) using software compression. But thats my personal
preference of course. Your list below doesn't indicate how big the
level 0's are, or how big your tapes are, making it difficult to
advise in more concrete terms.
>
>amdamin output
>2002-12-28 s6a.host1.com /mnt/s1a/c 0 DCA_TAPE01
> 25 OK
>2002-12-29 s6a.host1.com /mnt/s1a/c 1 DCA_TAPE03
> 26 OK
>2002-12-29 s6a.host1.com /mnt/s1a/c 1 DCA_TAPE04
> 26 OK
>2002-12-31 s6a.host1.com /mnt/s1a/c 0 DCA_TAPE05
> 26 OK
>2003-01-03 s6a.host1.com /mnt/s1a/c 1 DCA_TAPE06
> 27 OK
>2003-01-04 s6a.host1.com /mnt/s1a/c 1 DCA_TAPE07
> 27 OK
>2003-01-05 s6a.host1.com /mnt/s1a/c 0 DCA_TAPE08
> 27 OK
>2003-01-06 s6a.host1.com /mnt/s1a/c 1 DCA_TAPE09
> 27 OK
--
Cheers, Gene
AMD K6-III@500mhz 320M
Athlon1600XP@1400mhz 512M
99.21% setiathome rank, not too shabby for a WV hillbilly
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