Re: Amanda always doing full backup?
2009-05-14 15:08:35
On Thu, May 14, 2009 at 08:32:16AM -0500, Brandon Metcalf wrote:
> I recently changed my config from
>
> dumpcycle 4 weeks
> runspercycle 20
> tapecycle 25 tapes
>
> to
>
> dumpcycle 2 weeks
> runspercycle 12
> tapecycle 50 tapes
>
> backups are working fine, but I'm confused by the following output
> which is just an example of one device:
>
> $ amadmin DailySet1 find quercus sda8
>
> date host disk lv tape or file file part status
> 2009-04-23 quercus sda8 0 DailySet1-04 5 -- OK
> 2009-04-24 quercus sda8 1 DailySet1-05 5 -- OK
> 2009-04-25 quercus sda8 0 DailySet1-06 5 -- OK
> 2009-04-28 quercus sda8 0 DailySet1-07 6 -- OK
> 2009-04-29 quercus sda8 0 DailySet1-08 6 -- OK
> 2009-04-30 quercus sda8 0 DailySet1-09 6 -- OK
> 2009-05-01 quercus sda8 1 DailySet1-10 6 -- OK
> 2009-05-02 quercus sda8 0 DailySet1-11 6 -- OK
> 2009-05-05 quercus sda8 0 DailySet1-12 6 -- OK
> 2009-05-06 quercus sda8 1 DailySet1-13 6 -- OK
> 2009-05-07 quercus sda8 0 DailySet1-14 6 -- OK
> 2009-05-08 quercus sda8 1 DailySet1-15 6 -- OK
> 2009-05-09 quercus sda8 0 DailySet1-16 6 -- OK
> 2009-05-10 quercus sda8 0 DailySet1-17 6 -- OK
> 2009-05-12 quercus sda8 0 DailySet1-18 6 -- OK
> 2009-05-13 quercus sda8 0 DailySet1-19 6 -- OK
> 2009-05-14 quercus sda8 0 DailySet1-20 6 -- OK
>
> It seems that for the last fews days Amanda is doing a full backup
> every night. The filesystem on sda8 contains only the lost+found
> directory and it or its contents are not changing.
>
> However, according to the backup report, incrementals are definitely
> happening:
If sda8 contains only a L&F directory, and that directory is probably empty,
then amanda is probably saying both an incremental and a full backup will
take the same amount of space (one 32K block on tape) so why not do the
full backup.
--
Jon H. LaBadie jon AT jgcomp DOT com
JG Computing
12027 Creekbend Drive (703) 787-0884
Reston, VA 20194 (703) 787-0922 (fax)
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