Gene Heskett wrote:
On Wednesday 31 January 2007 01:27, Toomas Aas wrote:
Hello!
First, the system details:
FreeBSD 6.2-RELEASE
Amanda 2.5.1p2
GNU tar 1.16
All DLEs use GNU tar for backup
I noticed a strange problem today with this rather new Amanda setup.
Yesterday, a level 0 backup was done of one particular DLE. This DLE is
ca 50 GB in size, which compresses to ca 40 GB. Today's amdump run
started doing level 1 of this same DLE and wrote ca 35 GB, at which
point the HDD holding vtapes ran out of space.
Level 1 backup of this particular DLE definitely shouldn't be so big. I
looked at sendsize.debug and noticed an interesting problem. The
estimates for level >0 backups for all DLEs are the same size as
estimates for level 0.
I wonder if that version of tar is biting us again. Can you back up to
1.15-1 and give that a try?
Looks like going back to tar 1.15.1 really helped. With tar 1.16 (as
well as with tar 1.16.1) the behaviour was really strange - first two
amdump runs the incrementals were smaller than fulls (as expected), but
then suddenly all the incrementals became as big as fulls. I first tried
going to 1.16.1 and added the patches discussed here:
http://www.nabble.com/FW:-tar-1.16-listed-incremental-failure-t2920103.html
That didn't help. Then I installed tar 1.15.1 and I've now had 3
successful amdump runs. That's why it took me so long to report back.
Hopefully my luck lasts.
--
Toomas
