Re: [Bacula-users] LTO-4 Drive issues
2010-05-25 10:38:05
I am getting anywhere from 4 to 40 M Bytes/second transfer rate.
sample from log (several lines omitted):
23-May 04:05 ip-bacula-sd JobId 3834: 3307 Issuing autochanger "unload slot
10, drive 0" command.
23-May 04:38 ip-bacula-sd JobId 3834: Job write elapsed time = 00:29:38,
Transfer rate = 21.01 M bytes/second
23-May 04:41 ip-bacula-dir JobId 3834: Bacula ip-bacula-dir 3.0.1 (30Apr09):
23-May-2010 04:41:21
Build OS: x86_64-unknown-linux-gnu redhat
Backup Level: Full
Client: "Linux" 3.0.1 (30Apr09) i686-pc-linux-
gnu,redhat,Enterprise release
FileSet: "Full Set" 2009-06-30 15:35:14
Storage: "TL2000" (From Job resource)
Scheduled time: 23-May-2010 04:05:00
Elapsed time: 34 mins 28 secs
Priority: 10
FD Files Written: 321,952
SD Files Written: 321,952
FD Bytes Written: 37,318,560,278 (37.31 GB)
SD Bytes Written: 37,364,390,306 (37.36 GB)
Rate: 18045.7 KB/s
>>From your replies it seems the issue is not the backup device but someone
mentioned tools for the device and what you can use is itdt-dcr. This program
comes bundled in the downloads of firmware upgrades from Dell. Go to
support.dell.com and use the form to get to TL2000 updates or:
http://support.dell.com/support/downloads/download.aspx?c=us&cs=04&l=en&s=bsd&releaseid=R266766&SystemID=PWV_TL2000&servicetag=&os=LIN4&osl=en&deviceid=14489&devlib=0&typecnt=0&vercnt=10&catid=-1&impid=-1&formatcnt=0&libid=37&typeid=-1&dateid=-1&formatid=-1&source=-1&fileid=393643
There is also a WEB interface built in the TL2000 that can be turned on.
Also keep in mind that your Dell TL2000 may show up as IBM Model ULT3580-TD4,
mine does because it was made by IBM for Dell.
My settings are like yours below except I don't have any of the lines below
Autoselect. I have Maximum Concurrent Jobs = 20 but each client is set to 1..
All my servers have at least 2 ethernet ports and I use one on each server
set to a static ip in the 192.168.0.x domain, all of which are connected to a
gigabit switch not on the network and the backup server is also connected to
this switch. I only do one server backup at a time though.
hth
Thomas
On Sunday 23 May 2010 21:22:11 skipunk wrote:
> Janusz
>
> Both nics reported back at 100 Mb/s
> I'm beginning to think the network is the bottleneck.
>
> I ran a backup on my server with bacula. backing up the file I have been
> using. A 3.4Gb in 2 min and the only reason for it taking so long was
> because of a tape change in the library. So locally we are fine.
>
> Here is the autochanger and drive settings in bacula-sd.conf
>
> Autochanger {
> Name = Autochanger
> Device = Drive-1
> Changer Command = "/etc/bacula/mtx-changer %c %o %S %a %d"
> Changer Device = /dev/sg4
> }
>
> Device {
> Name = Drive-1 #
> Drive Index = 0
> Media Type = LTO-4
> Archive Device = /dev/nst0
> AutomaticMount = yes; # when device opened, read it
> AlwaysOpen = yes;
> RemovableMedia = yes;
> RandomAccess = no;
> AutoChanger = yes
> LabelMedia = no;
> Autoselect = yes;
> Maximum File Size = 5GB
> Maximum Network Buffer Size = 262144
> Maximum Block Size = 262144
> Spool Directory = /spool
> Maximum Spool Size = 200G
> Maximum Job Spool Size = 20G
>
> Alert Command = "sh -c 'tapeinfo -f %c |grep TapeAlert|cat'"
> }
>
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--
==========================================
Thomas McMillan Grant Bennett Appalachian State University
Operations & Systems Analyst P O Box 32026
University Library Boone, North Carolina 28608
(828) 262 6587
Library Systems Help Desk: https://www.library.appstate.edu/help/
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