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long estimate and run times
2003-06-17 15:27:48
Hi all,
I'm trying to figure out why may backups and estimages take so long. I
have a dual-processor machine with 4GB RAM. / and /boot are two software
RAID1 drives and /home is a RAID5 hardware drive. My tape drive is an
Overland Neo2000 LTO2 with 30 tape library.
I am using a 200GB holding disk on an isolated drive dedicated to amanda.
The estimate phase on localhost (my backup server) took two hours. I
watched the tar process and it took anywhere from 5-30% of the cpu
here is a sample of my amanda report:
STATISTICS:
Total Full Daily
-------- -------- --------
Estimate Time (hrs:min) 2:01
Run Time (hrs:min) 2:47
Dump Time (hrs:min) 1:10 0:17 0:53
Output Size (meg) 6532.4 4628.1 1904.2
Original Size (meg) 6532.4 4628.1 1904.2
Avg Compressed Size (%) -- -- -- (level:#disks ...)
Filesystems Dumped 10 5 5 (1:4 3:1)
Avg Dump Rate (k/s) 1597.4 4656.7 615.1
Tape Time (hrs:min) 0:04 0:03 0:01
Tape Size (meg) 6532.6 4628.2 1904.3
Tape Used (%) 3.2 2.2 0.9 (level:#disks ...)
Filesystems Taped 10 5 5 (1:4 3:1)
Avg Tp Write Rate (k/s) 25126.8 25105.0 25179.7
USAGE BY TAPE:
Label Time Size % Nb
gauss-21 0:04 6532.6 3.2 10
FAILED AND STRANGE DUMP DETAILS:
/-- localhost / lev 3 STRANGE
sendbackup: start [localhost:/ level 3]
sendbackup: info BACKUP=/bin/tar
sendbackup: info RECOVER_CMD=/bin/tar -f... -
sendbackup: info end
? gtar: ./tmp/screens/S-root/16229.pts-6.master: Warning: Cannot stat:
No such file or directory
| gtar: ./tmp/ssh-XXHe66oR/agent.26555: socket ignored
| gtar: ./tmp/ssh-XXXjwuZQ/agent.16145: socket ignored
| gtar: ./tmp/ssh-XXtUIuYn/agent.12543: socket ignored
? gtar:
./var/lib/amanda/DailySet1/index/mathweb/_home/20030617_0.gz.tmp:
Warning: Cannot stat: No such file or directory ? gtar:
./var/lib/ganglia/rrds/Math Gauss Cluster/node5.cluster/load_one.rrd:
file changed as we read it
| Total bytes written: 51947520 (49MB, 82kB/s)
sendbackup: size 50730
sendbackup: end
\--------
NOTES:
planner: Incremental of localhost:/ bumped to level 3.
planner: Full dump of mathweb:/home promoted from 3 days ahead.
planner: Full dump of mathweb:/usr/local promoted from 3 days ahead.
planner: Full dump of mathweb:/www promoted from 3 days ahead.
planner: Full dump of localhost:/boot promoted from 3 days ahead.
planner: Full dump of mathweb:/var/log promoted from 3 days ahead.
taper: tape gauss-21 kb 6689664 fm 10 [OK]
DUMP SUMMARY:
DUMPER STATS
TAPER STATS
HOSTNAME DISK L ORIG-KB OUT-KB COMP% MMM:SS
KB/s MMM:SS KB/s
----------------------------------
--------------------------------------------- -----------------
localhost / 3 50730 50752 -- 10:18
82.1 0:02 21829.3
localhost /boot 0 13010 13024 -- 0:01
10048.7 0:03 3919.4
localhost /home 1 205640 205664 -- 35:26
96.7 0:10 20045.5
mathweb / 1 68530 68544 -- 1:25
810.3 0:05 12602.2
mathweb /boot 1 10 32 -- 0:00
79.9 0:02 14.8
mathweb /home 0 3138930 3138944 -- 6:29
8071.3 1:50 28619.6
mathweb /usr/local 0 1135110 1135136 -- 9:28
1997.6 0:49 23216.5
mathweb /var/lib/pgsql 1 1625000 1625024 -- 5:41
4770.4 0:57 28380.8
mathweb /var/log 0 212930 212960 -- 0:23
9281.4 0:10 20687.6
mathweb /www 0 239240 239264 -- 0:36
6579.7 0:17 14419.5
(brought to you by Amanda version 2.4.4)
Thanks,
Jason Edgecombe
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