Compression again
2007-04-12 15:44:25
Hello again,
I still try find the cause of my problems with amanda. When the
backup finishes, I get the following dump summary:
DUMPER STATS TAPER STATS
HOSTNAME DISK L ORIG-kB OUT-kB COMP% MMM:SS KB/s MMM:SS KB/s
-------------------------- ------------------------------------ -------------
server /home 0 2229570 2833775 127.1 11:01 4287.6 15:21 3077.9
server /profiles 0 4553900 4539435 99.7 21:12 3569.5 24:46 3054.9
server /data 0 1221335 1796306 147.1 4:43 6347.3 9:52 3032.3
server /org 1 3520 1109 31.5 0:08 135.0 0:03 344.0
server /lit 1 40 2 5.0 0:01 1.4 0:03 0.6
server /projects 0 8876515 11223308 126.4 43:35 4292.3 60:48 3076.9
(brought to you by Amanda version 2.4.5)
and the following notes
planner: server /srv/samba/share/org 20070412 0 [dumps too big,
397003 KB, full dump delayed]
planner: server /srv/samba/share/lit 20070412 0 [dumps too big,
1433505 KB, full dump delayed]
taper: tape Tape05 kb 20394240 fm 6 [OK]
The original data has the following sizes:
/home 4452664 kB
/profiles 8996864 kB
/data 2437400 kB
/org 376376 kB
/lit 1316660 kB
/projects 17768808 kB
So first I don't understand why ORIG-kB is half of the size. I use
software compression (compress server best). Hardware compression ist
turned off ("amtapetype -c" proofs this).
Next I don't understand why the data grows during it's written to tape.
The third thing I don't understand why amanda delayes two "disk". If
I summarize the sizes I get 21,19 GB to store. The tape length is 36
GB uncompressed. So it should fit on the tape.
Hope that somebody can help me
Thanks for helping me
Sebastian
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