[Bacula-users] Multiple backups use the same Volume while UseVolumeOnce = yes

[Teun O. [Nextpertise] <ba...@ne...>]

Hi Bacula Enthausiasts,

On 28 december I sent in this mailing that I had some backups which were not able to restore. Today I was sick of it that I could not trust my backups for 100%. I read my log files for what could happening and I found out the following:

I have sometimes some backups starting at exact the same moment (3 sec in diff). And they use the same Volume (Vol1277), which is strange because I have the option: UseVolumeOnce = yes.

Max connections is for the Director: 3
Max connections is for the single Storage Deamon: 20

The quick option is only to allow 1 single backup at the time. (Which I applied today, I guess it will work.) I hope sameone has a better approuch because the first of the month I have some serious backups which need some time, I like to run these side by side.

# File Pool definition, used for 1 month backups
Pool {
  Name = File
  Action On Purge = Truncate
  Pool Type = Backup
  Recycle = yes                       # Bacula can automatically recycle Volumes
  AutoPrune = yes                     # Prune expired volumes
  Volume Retention = 32 days
  LabelFormat = "Vol"
  UseVolumeOnce = yes
}

Log:
  Backup Level:           Incremental, since=2014-01-27 02:07:19
  Client:                 "client1.company1.nl" 2.4.4 (28Dec08) x86_64-pc-linux-gnu,debian,lenny/sid
  FileSet:                "client1.company1.nl" 2013-07-10 01:55:05
  Pool:                   "File" (From Job resource)
  Catalog:                "MyCatalog" (From Client resource)
  Storage:                "File" (From Job resource)
  Scheduled time:         28-Jan-2014 01:55:00
  Start time:             28-Jan-2014 02:06:16
  End time:               28-Jan-2014 02:06:26
  Elapsed time:           10 secs
  Priority:               10
  FD Files Written:       14
  SD Files Written:       14
  FD Bytes Written:       11,919,971 (11.91 MB)
  SD Bytes Written:       11,921,587 (11.92 MB)
  Rate:                   1192.0 KB/s
  Software Compression:   None
  VSS:                    no
  Encryption:             no
  Accurate:               no
  Volume name(s):         Vol0137|Vol1277
--
  Backup Level:           Incremental, since=2014-01-27 02:07:54
  Client:                 "client4.company2.nl" 5.2.6 (21Feb12) x86_64-pc-linux-gnu,debian,7.0
  FileSet:                "company2" 2013-07-10 01:55:00
  Pool:                   "File" (From Job resource)
  Catalog:                "MyCatalog" (From Client resource)
  Storage:                "File" (From Job resource)
  Scheduled time:         28-Jan-2014 01:55:00
  Start time:             28-Jan-2014 02:06:14
  End time:               28-Jan-2014 02:06:33
  Elapsed time:           19 secs
  Priority:               10
  FD Files Written:       139
  SD Files Written:       139
  FD Bytes Written:       273,321,392 (273.3 MB)
  SD Bytes Written:       273,342,003 (273.3 MB)
  Rate:                   14385.3 KB/s
  Software Compression:   None
  VSS:                    no
  Encryption:             no
  Accurate:               no
  Volume name(s):         Vol2009|Vol1277
--
  Backup Level:           Incremental, since=2014-01-27 02:07:37
  Client:                 "client3.company2.nl" 5.2.6 (21Feb12) x86_64-pc-linux-gnu,debian,7.0
  FileSet:                "company2" 2013-07-10 01:55:00
  Pool:                   "File" (From Job resource)
  Catalog:                "MyCatalog" (From Client resource)
  Storage:                "File" (From Job resource)
  Scheduled time:         28-Jan-2014 01:55:00
  Start time:             28-Jan-2014 02:06:17
  End time:               28-Jan-2014 02:06:42
  Elapsed time:           25 secs
  Priority:               10
  FD Files Written:       771
  SD Files Written:       771
  FD Bytes Written:       347,492,328 (347.4 MB)
  SD Bytes Written:       347,611,881 (347.6 MB)
  Rate:                   13899.7 KB/s
  Software Compression:   None
  VSS:                    no
  Encryption:             no
  Accurate:               no
  Volume name(s):         Vol1277