The error count is small. We don't have a problem with the network.
[root@lightning] /root-> netstat -i
Name Mtu Network Address Ipkts Ierrs Opkts 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 ::1 322 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) 16422.0 16295.0 127.0
Original Size (meg) 40076.8 39376.1 700.7
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) 16422.4 16295.3 127.1
Tape Used (%) 93.1 92.4 0.7 (level:#disks
...)
Filesystems Taped 14 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:paul.bijnens AT xplanation DOT com]
Sent: Tuesday, September 14, 2004 11:24 AM
To: Kevin D. Alford
Cc: amanda-users AT amanda DOT org
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) 14913.6 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
[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) 16554.5 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
>
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, Xplanation Tel +32 16 397.511
Technologielaan 21 bus 2, B-3001 Leuven, BELGIUM Fax +32 16 397.512
http://www.xplanation.com/ email: Paul.Bijnens AT xplanation DOT com
***********************************************************************
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