Bacula-users

Re: [Bacula-users] Performance options for single large (100TB) server backup?

2011-06-28 03:14:21
Subject: Re: [Bacula-users] Performance options for single large (100TB) server backup?
From: Christian Manal <moenoel AT informatik.uni-bremen DOT de>
To: bacula-users AT lists.sourceforge DOT net
Date: Tue, 28 Jun 2011 09:09:44 +0200
>  - File daemon is single threaded so is limiting backup performance. Is there 
> was a way to start more than one stream at the same time for a single machine 
> backup? Right now I have all the file systems for a single client in the same 
> file set.
> 
>  - Tied in with above, accurate backups cut into performance even more when 
> doing all the md5/sha1 calcs. Spliting this perhaps with above to multiple 
> threads would really help.
> 
>  - How to stream a single job to multiple tape drives. Couldn't figure this 
> out so that only one tape drive is being used.
> 
>  - spooling to disk first then to tape is a killer. if multiple streams could 
> happen at once this may mitigate this or some type of continous spooling. How 
> do others do this?


Hi,

I haven't tried, but shouldn't it be possible to run multiple instances
of FDs on different ports? You could split up the fileset into multiple
jobs which then can run concurrently on multiple FDs.


Regards,
Christian Manal

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