I am not using regular tapes, I am backing up to disk with 14 "psuedo"
tapes, there is 210 GB total,
so if tape one uses 50GB and tape2 uses 5GB, I still have 155GB left.
I originally had dumpcycle and runcycle at 7, I was going to bump it up
because amanda was performing full dumps every 2-3 days, A full dump of
all servers is about 60GB, if amanda does this more than 3 times in 14
days I will run out of space and it seems amanda does do a level 0 more
often that 7 days on almost every server, no matter what I put for
runcycle or dumpcycle
--- Gene Heskett <gene_heskett AT iolinc DOT net> wrote:
> 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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