-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Tod Hagan wrote:
> All,
>
> We recently upgraded the machine running Bacula to Red Hat Enterprise
> Linux 5 from RHEL 3 and now see a much slower transfer rate during
> backups. The version of Bacula is unchanged, 1.38.8, except for
> re-compilation against the updated libraries.
>
> One backup, which ran at 8772.2 to 12671.3 KB/s for 6.028 to 8.535 GB
> before the upgrade, is now running at 2046.2 to 2464.3 KB/s for 2.77 GB.
>
> Below I've included some output from tapeinfo as the scsi tape driver is
> the most likely source of the slowdown. I've tried 'mt -f /dev/nst0
> stsetoptions buffer-writes async-writes' with no effect.
>
> I'd really appreciate some ideas on increasing the backup speeds to the
> levels we used to get.
>
> Thanks.
>
> > tapeinfo -f /dev/sg1
> Product Type: Medium Changer
> Vendor ID: 'EXABYTE '
> Product ID: 'LTO 1x7 2U '
> Revision: 'B008'
> Attached Changer: No
> SerialNumber: '000087031125'
> SCSI ID: 0
> SCSI LUN: 0
> Ready: yes
>
> > tapeinfo -f /dev/sg2
> Product Type: Tape Drive
> Vendor ID: 'IBM '
> Product ID: 'ULTRIUM-TD3 '
> Revision: '52E0'
> Attached Changer: No
> SerialNumber: '1210075930'
> MinBlock:1
> MaxBlock:16777215
> SCSI ID: 1
> SCSI LUN: 0
> Ready: yes
> BufferedMode: yes
> Medium Type: 0x38
> Density Code: 0x44
> BlockSize: 0
> DataCompEnabled: yes
> DataCompCapable: yes
> DataDeCompEnabled: yes
> CompType: 0x1
> DeCompType: 0x1
> BOP: yes
> Block Position: 0
>
> > mt -f /dev/nst0 status
> SCSI 2 tape drive:
> File number=0, block number=-1, partition=0.
> Tape block size 0 bytes. Density code 0x44 (no translation).
> Soft error count since last status=0
> General status bits on (1010000):
> ONLINE IM_REP_EN
>
Check the network first. Do a netstat -ian -- you should have no
collisions and no errors in either direction. If you have these, your
speed/duplex settings are likely incorrect.
- --
---- _ _ _ _ ___ _ _ _
|Y#| | | |\/| | \ |\ | | |Ryan Novosielski - Systems Programmer II
|$&| |__| | | |__/ | \| _| |[EMAIL PROTECTED] - 973/972.0922 (2-0922)
\__/ Univ. of Med. and Dent.|IST/AST - NJMS Medical Science Bldg - C630
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
iD8DBQFGsl+tmb+gadEcsb4RAnscAJ0ZGpql4fylpMgTEuhMECJUdglRkgCg1fQQ
61fiNq58giINLZf6w7+0vmg=
=PfTl
-----END PGP SIGNATURE-----
begin:vcard
fn:Ryan Novosielski
n:Novosielski;Ryan
org:UMDNJ;IST/AST
adr;dom:MSB C630;;185 South Orange Avenue;Newark;NJ;07103
email;internet:[EMAIL PROTECTED]
title:Systems Programmer III
tel;work:(973) 972-0922
tel;fax:(973) 972-7412
tel;pager:(866) 20-UMDNJ
x-mozilla-html:FALSE
version:2.1
end:vcard
-------------------------------------------------------------------------
This SF.net email is sponsored by: Splunk Inc.
Still grepping through log files to find problems? Stop.
Now Search log events and configuration files using AJAX and a browser.
Download your FREE copy of Splunk now >> http://get.splunk.com/
_______________________________________________
Bacula-users mailing list
Bacula-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/bacula-users
