FastStor DLT 7000 - extremely slow
I have a IBM P660 6MI server running AIX 5.1 ML6 and Amanda 2.4.2p2.
I originally had my backups running to the internal 8MM tape
drive.
define tapetype ibm-20gig-8mm {
length 17636 mbytes
filemark 178
kbytes # don't know a better
value
speed 2116
kbytes # dito
}
STATISTICS:
Total Full
Daily
Estimate Time
(hrs:min) 0:10
Run Time
(hrs:min) 2:42
Dump Time
(hrs:min)
2:24
2:16 0:08
Output Size (meg)
14913.2 14658.5 254.7
Original Size
(meg) 34648.7
33725.5 923.2
Avg Compressed Size
(%) 43.0
43.5 27.6 (level:#disks ...)
Filesystems
Dumped
13
9 4 (1:1 3:2
4:1)
Avg Dump Rate (k/s)
1767.5 1838.0 550.9
Tape Time
(hrs:min)
2:09
2:07 0:02
Tape Size
(meg) 14913.6
14658.8 254.8
Tape Used
(%)
84.6
83.1 1.4 (level:#disks
...)
Filesystems
Taped
13 9
4 (1:1 3:2 4:1)
Avg Tp Write Rate (k/s)
1977.2 1972.0 2329.1
I have now attached a ADIC Fastor 7 Slot DLT 7000 (DLTtape
IV) drive
define tapetype DLT7000-IV {
comment DLT7000 with DLT Tape IV
uncompressed
length 35000 mbytes
filemark 8
kbytes # don't know
a better value
speed 5000
kbytes # dito
}
And the backup times have went from approximately 2 hours to
23 hours.
STATISTICS:
Total Full
Daily
Estimate Time
(hrs:min) 0:25
Run Time
(hrs:min) 24:04
Dump Time
(hrs:min)
21:49 21:44
0:05
Output Size
(meg) 16554.5
16422.1 132.4
Original Size
(meg) 40713.0
40038.2 674.9
Avg Compressed Size
(%) 40.7
41.0 19.6 (level:#disks ...)
Filesystems
Dumped
14
10 4 (1:1 2:1
3:2)
Avg Dump Rate
(k/s) 215.8
214.9 447.0
Tape Time
(hrs:min)
23:18 23:07
0:11
Tape Size
(meg) 16554.9
16422.4 132.5
Tape Used (%)
47.3
46.9 0.4 (level:#disks
...)
Filesystems
Taped
14
10 4 (1:1 2:1
3:2)
Avg Tp Write Rate (k/s)
202.1 202.1 198.8
What could be the problem? I think I have the
right tapetype configuration in the Amanda.conf file.
I also dont have a changer.conf file?
Any help is greatly appreciated.
Kevin D. Alford
Sr. Systems Engineer
2110 Pleasant Valley Rd.
Fairmont, WV 26554
TMC Technologies, Inc.
(304)368-1862 Ext. 53
RE: FastStor DLT 7000 - extremely slow
The error count is small. We don't have a problem with the network.
[EMAIL PROTECTED] /root- netstat -i
Name Mtu Network AddressIpkts IerrsOpkts Oerrs
Coll
en2 1500 link#2 0.6.27.6b.6b.63 8789 0 556 4
0
en2 1500 000.000.0 lightning 8789 0 556 4
0
lo0 16896 link#1 322 0 330 0
0
lo0 16896 127 localhost 322 0 330 0
0
lo0 16896 ::1322 0 330 0
0
This is the output from a backup report for the 8MM drive after adding
the other filesystem.
STATISTICS:
Total Full Daily
Estimate Time (hrs:min)0:30
Run Time (hrs:min) 6:24
Dump Time (hrs:min)5:52 5:47 0:06
Output Size (meg) 16422.016295.0 127.0
Original Size (meg) 40076.839376.1 700.7
Avg Compressed Size (%)41.0 41.4 18.1 (level:#disks
...)
Filesystems Dumped 14 10 4 (1:2 3:2)
Avg Dump Rate (k/s) 795.7 802.3 388.2
Tape Time (hrs:min)5:33 5:31 0:01
Tape Size (meg) 16422.416295.3 127.1
Tape Used (%) 93.1 92.40.7 (level:#disks
...)
Filesystems Taped14 10 4 (1:2 3:2)
Avg Tp Write Rate (k/s) 842.9 839.3 1912.1
It still only took 5 1/2 hours.
Kevin D. Alford
Sr. Systems Engineer
2110 Pleasant Valley Rd.
Fairmont, WV 26554
TMC Technologies, Inc.
(304)368-1862 Ext. 53
-Original Message-
From: Paul Bijnens [mailto:[EMAIL PROTECTED]
Sent: Tuesday, September 14, 2004 11:24 AM
To: Kevin D. Alford
Cc: [EMAIL PROTECTED]
Subject: Re: FastStor DLT 7000 - extremely slow
Kevin D. Alford wrote:
[before:]
Run Time (hrs:min) 2:42
Dump Time (hrs:min)2:24 2:16 0:08
...
Avg Dump Rate (k/s) 1767.5 1838.0 550.9
Tape Time (hrs:min)2:09 2:07 0:02
Tape Size (meg) 14913.614658.8 254.8
Tape Used (%) 84.6 83.11.4 (level:#disks
...)
Filesystems Taped13 9 4 (1:1 3:2 4:1)
Avg Tp Write Rate (k/s) 1977.2 1972.0 2329.1
[after:]
I have now attached a ADIC Fastor 7 Slot DLT 7000 (DLTtape IV) drive
And the backup times have went from approximately 2 hours to 23 hours.
STATISTICS:
Total Full Daily
Estimate Time (hrs:min)0:25
Run Time (hrs:min)24:04
Dump Time (hrs:min) 21:49 21:44 0:05
Output Size (meg) 16554.516422.1 132.4
Original Size (meg) 40713.040038.2 674.9
Avg Compressed Size (%)40.7 41.0 19.6 (level:#disks
...)
Filesystems Dumped 14 10 4 (1:1 2:1 3:2)
Avg Dump Rate (k/s) 215.8 214.9 447.0
Tape Time (hrs:min) 23:18 23:07 0:11
Tape Size (meg) 16554.916422.4 132.5
Tape Used (%) 47.3 46.90.4 (level:#disks
...)
Filesystems Taped14 10 4 (1:1 2:1 3:2)
Avg Tp Write Rate (k/s) 202.1 202.1 198.8
Not only the tape seems slow, but almost everything!
The estimate time went from 10 minutes to 25 minutes
(that could still be normal).
The dump time went from 2 1/2 hours to almost 22 hours!
Do you have networking problems (e.g. a duplex mismatch
is a frequent problem). Try netstat -i, and notice
if you have a a large error count.
There was also one filesystem added? Maybe that the cause?
Or did you bypass the holdingdisk for one or more dumps?
What could be the problem? I think I have the right tapetype
configuration in the Amanda.conf file.
I believe the tapetype is correct, but you generate one yourself.
It takes about 6 hours. Insert a scratch tape and type:
amtapetype -e 35g -f /dev/your/tape
I also don't have a changer.conf file?
If you don't have a changer, than you don't need one :-)
--
Paul Bijnens, XplanationTel +32 16 397.511
Technologielaan 21 bus 2, B-3001 Leuven, BELGIUMFax +32 16 397.512
http://www.xplanation.com/ email: [EMAIL PROTECTED]
***
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***
Strange Dumps?
I am running Amanda versions 2.4.2p2 on a AIX 5.1 system. I have been getting these strange dump details, and would like To resolve these problems. The following information is provided. FAILED AND STRANGE DUMP DETAILS: /-- thunder /home lev 1 STRANGE sendbackup: start [thunder:/home level 1] sendbackup: info BACKUP=/bin/tar sendbackup: info RECOVER_CMD=/bin/gzip -dc |/bin/tar -f... - sendbackup: info COMPRESS_SUFFIX=.gz sendbackup: info end ? gtar: Removing leading `./' from member names | Total bytes written: 16957440 (17MiB, 1.9MiB/s) sendbackup: size 16560 sendbackup: end \ /-- hail /home lev 4 STRANGE sendbackup: start [hail:/home level 4] sendbackup: info BACKUP=/bin/tar sendbackup: info RECOVER_CMD=/bin/gzip -dc |/bin/tar -f... - sendbackup: info COMPRESS_SUFFIX=.gz sendbackup: info end ? gtar: Removing leading `./' from member names | Total bytes written: 19957760 (20MiB, 610KiB/s) sendbackup: size 19490 sendbackup: end \ /-- thunder / lev 2 STRANGE sendbackup: start [thunder:/ level 2] sendbackup: info BACKUP=/bin/tar sendbackup: info RECOVER_CMD=/bin/gzip -dc |/bin/tar -f... - sendbackup: info COMPRESS_SUFFIX=.gz sendbackup: info end ? gtar: Removing leading `./' from member names | gtar: ./tmp/.s.PGSQL.5432: socket ignored Total bytes written: | 160993280 (154MiB, 5.9MiB/s) sendbackup: size 157220 sendbackup: end \ /-- hail / lev 1 STRANGE sendbackup: start [hail:/ level 1] sendbackup: info BACKUP=/bin/tar sendbackup: info RECOVER_CMD=/bin/gzip -dc |/bin/tar -f... - sendbackup: info COMPRESS_SUFFIX=.gz sendbackup: info end ? gtar: Removing leading `./' from member names | gtar: ./dev/log: socket ignored | gtar: ./tmp/.s.PGSQL.5432: socket ignored | gtar: ./tmp/mysql.sock: socket ignored | gtar: ./var/run/fcron.fifo: socket ignored Total bytes written: | 393256960 (376MiB, 2.6MiB/s) sendbackup: size 384040 sendbackup: end Any help is would be greatly appreciated. Kevin D. Alford Sr. Systems Engineer TMC Technologies, Inc. (304)368-1862 Ext. 53
Upgrading Amanda
I am looking for the procedures required to upgrade from 2.4.2p2 to 2.4.4p3. Your assistance in this matter is greatly appreciated. Kevin D. Alford Sr. Systems Engineer TMC Technologies, Inc. (304)368-1862 Ext. 53
