I think you're in front of the same problem I had on many Solaris installations.
First of all, consider the hardware systems.
I figured out that on Sparc machines postgres is much slower than on newer AMD or x86 machines with Solaris 10.
This is mainly because of the slow performances of the processor.
Postgres is slowing down backup, expecially when you're backing up many small files.
The problem does not appear when you backup few very big files (because bacula is writing one record per file).
Consider moving the database on another faster machine on the LAN when using bacula on Sparc.
Also, you may encounter another problem that I still could not resolve: on my installations I cannot split the Director and the Database on two different machines (it seems that the Director hangs if the DB is not on localhost). So I had to move both Director and DB on the faster machine, run SD on the tape machine, and run all the FD machines on the clients.
If you encounter this problem, maybe we can try to figure it out together (it really gave me headaches).
If you don't, I would like to share with you informations to understand why I still have it....
Gabriele.
----------------------------------------------------------------------------------
Da: Berner Martin <[EMAIL PROTECTED]>
A: bacula-users@lists.sourceforge.net
Data: 6 novembre 2006 14.22.53 CET
Oggetto: [Bacula-users] Performance on a Sun Solaris
First of all, consider the hardware systems.
I figured out that on Sparc machines postgres is much slower than on newer AMD or x86 machines with Solaris 10.
This is mainly because of the slow performances of the processor.
Postgres is slowing down backup, expecially when you're backing up many small files.
The problem does not appear when you backup few very big files (because bacula is writing one record per file).
Consider moving the database on another faster machine on the LAN when using bacula on Sparc.
Also, you may encounter another problem that I still could not resolve: on my installations I cannot split the Director and the Database on two different machines (it seems that the Director hangs if the DB is not on localhost). So I had to move both Director and DB on the faster machine, run SD on the tape machine, and run all the FD machines on the clients.
If you encounter this problem, maybe we can try to figure it out together (it really gave me headaches).
If you don't, I would like to share with you informations to understand why I still have it....
Gabriele.
|
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|
Gabriele Bulfon - Sonicle S.r.l. Tel +39 028246016 Int. 30 - Fax +39 028243880 Via Felice Cavallotti 16 - 20089, Rozzano - Milano - ITALY http://www.sonicle.com |
----------------------------------------------------------------------------------
Da: Berner Martin <[EMAIL PROTECTED]>
A: bacula-users@lists.sourceforge.net
Data: 6 novembre 2006 14.22.53 CET
Oggetto: [Bacula-users] Performance on a Sun Solaris
Hy
Das anybody runs Bacula (1.38.9) on Sun Solaris (8, 9, 10)?
I'm interested, how do you backup a consistent state of the System.
For Example I use fssnap for /, /var and /export/home witch are on a ufs-Filesystem.
But I think it's slower backing up from the snapshot then from the real File.
I think the Backup is very slow in general.
bacula-dir and bacula-sd are running on a dedicated Sun on witch also the Cattalo-Database (PostgresSQL) are running.
backing up a Solaris 8 running Oracle-DB takes my 6 and a half hours for 261GB that's about 11.4MB/s
Details:
03-Nov 13:32 merkur-dir: Bacula 1.38.9 (02May06): 03-Nov-2006 13:32:37
JobId: 3930
Job: saturn.2006-11-02_21.00.02
Backup Level: Full
Client: "saturn-fd" sparc-sun-solaris2.8,solaris,5.8
FileSet: "SaturnFull" 2006-01-13 20:05:32
Pool: "Backup"
Storage: "Tandberg"
Scheduled time: 02-Nov-2006 21:00:01
Start time: 03-Nov-2006 07:01:12
End time: 03-Nov-2006 13:32:37
Elapsed time: 6 hours 31 mins 25 secs
Priority: 21
FD Files Written: 446,213
SD Files Written: 446,213
FD Bytes Written: 261,207,880,851 (261.2 GB)
SD Bytes Written: 261,283,897,816 (261.2 GB)
Rate: 11122.3 KB/s
Software Compression: None
Volume name(s): BACKUP-2005-12-05_45|BACKUP-2006-11-03_3930
Volume Session Id: 1846
Volume Session Time: 1148901284
Last Volume Bytes: 159,174,938,006 (159.1 GB)
Non-fatal FD errors: 0
SD Errors: 0
FD termination status: OK
SD termination status: OK
Termination: Backup OK
On the other Hand I back up an Application-Server running Solaris 10 takes my 1 hours 19 minutes for about 19GB. That's about 4MB/s
Details:
03-Nov 16:45 merkur-dir: Bacula 1.38.9 (02May06): 03-Nov-2006 16:45:58
JobId: 3939
Job: neptun.2006-11-03_15.25.10
Backup Level: Full
Client: "neptun-fd" sparc-sun-solaris2.10,solaris,5.10
FileSet: "NeptunFull" 2005-12-07 21:04:30
Pool: "Backup"
Storage: "Tandberg"
Scheduled time: 03-Nov-2006 15:25:01
Start time: 03-Nov-2006 15:26:22
End time: 03-Nov-2006 16:45:58
Elapsed time: 1 hour 19 mins 36 secs
Priority: 40
FD Files Written: 441,549
SD Files Written: 441,549
FD Bytes Written: 18,816,988,341 (18.81 GB)
SD Bytes Written: 18,896,666,176 (18.89 GB)
Rate: 3939.9 KB/s
Software Compression: None
Volume name(s): BACKUP-2006-11-03_3930
Volume Session Id: 1848
Volume Session Time: 1148901284
Last Volume Bytes: 229,313,864,627 (229.3 GB)
Non-fatal FD errors: 0
SD Errors: 0
FD termination status: OK
SD termination status: OK
Termination: Backup OK
So where is the Difference? What's going wrong that it takes so long?
I'm graceful for any hint.
Thanks for your reply
Berner Martin
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