Bacula-users

[Bacula-users] Migration takes hours

2011-02-25 12:29:44
Subject: [Bacula-users] Migration takes hours
From: Dermot Beirne <dermot.beirne AT dpd DOT ie>
To: bacula-users AT lists.sourceforge DOT net
Date: Fri, 25 Feb 2011 16:20:33 +0000
Hi,
I am using Bacula 5.0.3 on Ubuntu 9.04

The length of time taken to migrate from disk to tape is causing
problems with my backup window.

The Monthly full backups I run takes up to 3 days.

Here is the output of one client:

 Build OS:               i686-pc-linux-gnu ubuntu 9.04
 Prev Backup JobId:      12473
 Prev Backup Job:        Livetest.2011-02-06_22.00.00_56
 New Backup JobId:       12487
 Current JobId:          12486
 Current Job:            Monthly-Disk-Tape-Migrate.2011-02-07_05.00.02_09
 Backup Level:           Full
 Client:                 interlink-pdc-fd
 FileSet:                "interlink-pdc Fileset" 2009-09-17 18:04:55
 Read Pool:              "Monthly-Disk-Pool" (From Job resource)
 Read Storage:           "MonthlyStorage" (From Pool resource)
 Write Pool:             "Monthly-Tape-Pool" (From Job Pool's NextPool resource)
 Write Storage:          "Tape" (From Storage from Pool's NextPool resource)
 Catalog:                "MyCatalog" (From Client resource)
 Start time:             07-Feb-2011 08:24:21
 End time:               07-Feb-2011 19:36:13
 Elapsed time:           11 hours 11 mins 52 secs
 Priority:               20
 SD Files Written:       5,654,088
 SD Bytes Written:       768,958,410,352 (768.9 GB)
 Rate:                   19075.2 KB/s
 Volume name(s):         000072L4
 Volume Session Id:      258
 Volume Session Time:    1295882384
 Last Volume Bytes:      769,726,218,240 (769.7 GB)
 SD Errors:              0
 SD termination status:  OK
 Termination:            Migration OK



There are around 26 disk volumes to migrate for this job.  Each is 50Gb.

My drive is a Dell PowerVault 124T LTO4

Can anyone suggest how best to go about troubleshooting this performance.

Thank you.
Dermot.

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