Hello dear Bacula users!
I have a problem: during a migration job my drive stops
quite often. The migration job finished with that message:
14-Mar 13:57 hugo-dir: The following 1 JobIds will be migrated: 3
14-Mar 13:57 hugo-dir: Migration using JobId=3 Job=zoii.2007-03-13_21.21.09
14-Mar 13:57 hugo-dir: Bootstrap records written to
/var/spool/bacula/hugo-dir.restore.1.bsr
14-Mar 13:57 hugo-dir:
14-Mar 13:57 hugo-dir: The job will require the following
Volume(s) Storage(s) SD Device(s)
===========================================================================
14-Mar 13:57 hugo-dir:
14-Mar 13:57 hugo-dir: Platte1-Freitag0001 BackupStorageWin
BackupDev1
14-Mar 13:57 hugo-dir:
14-Mar 13:57 hugo-dir: Start Migration JobId 10,
Job=freitag-tape.2007-03-14_13.57.54
14-Mar 13:58 hugo-sd: Ready to read from volume "Platte1-Freitag0001" on
device "BackupDev1" (/backup/bacula-backups).
14-Mar 13:58 hugo-sd: Wrote label to prelabeled Volume "Freitag" on
device "TapeDev" (/dev/rst0)
14-Mar 13:58 hugo-sd: Forward spacing Volume "Platte1-Freitag0001" to
file:block 0:209.
14-Mar 18:21 hugo-sd: End of Volume at file 39 on device "BackupDev1"
(/backup/bacula-backups), Volume "Platte1-Freitag0001"
14-Mar 18:21 hugo-sd: End of all volumes.
14-Mar 18:21 hugo-dir: Bacula 2.0.2 (28Jan07): 14-Mar-2007 18:21:14
Prev Backup JobId: 3
New Backup JobId: 11
Migration JobId: 10
Migration Job: freitag-tape.2007-03-14_13.57.54
Backup Level: Full
Client: hugo-fd
FileSet: "rootdir_bsd_home" 2007-03-13 21:20:21
Read Pool: "Platte1-Freitag" (From Job resource)
Read Storage: "BackupStorageWin" (From user selection)
Write Pool: "Tape-Freitag" (From Job Pool's NextPool resource)
Write Storage: "BackupStorageTape" (From Storage from Pool's
NextPool resource)
Start time: 14-Mar-2007 13:58:00
End time: 14-Mar-2007 18:21:14
Elapsed time: 4 hours 23 mins 14 secs
Priority: 10
SD Files Written: 2,159,801
SD Bytes Written: 168,088,680,253 (168.0 GB)
Rate: 10642.6 KB/s
Volume name(s): Freitag
Volume Session Id: 1
Volume Session Time: 1173877051
Last Volume Bytes: 168,285,164,544 (168.2 GB)
SD Errors: 0
SD termination status: OK
Termination: Migration OK
Sometimes the drive ran like for 10 minutes or so without stoping,
sometimes it stopped and rewound every ten seconds.
The transfer rate should also be 20MB/s or more, since compression is
enabled but because of the stopping it dropped to 10MB/s.
I ran several more Migration jobs with about 150GB and the same happened.
I am using a standard PC with 2 recent WesternDigital IDE-ATA
harddrives, my Tapedrive (Tandberg LTO2) is connected to a SCSI
controller, the computer has 512 MB RAM, and a 2.8GHz Celeron CPU, 1GBit
Intel connected to a 3com GBit switch. During the migration no other
jobs are running on the machine.
Sometimes I noticed high database (PostgreSQL) activity. The database is
for Bacula only. Could it have to do with the 2.1 million files for backup?
Do you experience similar behavior? I am afraid that this could shorten
my drives lifespan enormously.
Are there any settings to speed up the tapedrive or migration?
Thank you very much in advance,
Damian Lubosch
