Bacula-users

Re: [Bacula-users] Need help with blocking factor and speeds

2008-08-14 11:22:53
Subject: Re: [Bacula-users] Need help with blocking factor and speeds
From: Alex Chekholko <chekh AT pcbi.upenn DOT edu>
To: James Cort <james.cort AT u4eatech DOT com>
Date: Thu, 14 Aug 2008 11:22:42 -0400
On Thu, 14 Aug 2008 09:57:07 +0100
James Cort <james.cort AT u4eatech DOT com> wrote:

> <snip lots of stuff about block sizes>
> 
> If performance is an issue, I can strongly recommend ensuring that 
> neither database nor disk seek time forms a bottleneck.
> 
> I am also using an LTO drive and I find that backups of lots of small 
> files are routinely 3-5 times slower than backups of a few very large 
> files.  I've got a maximum blocksize set of 16MB which does help.
> 
Hi James,

Can you please elaborate on this?  What setting do you have set where?  Also, 
have you been able to successfully run the btape tests with that block size?  
Which version of bacula?

Regards,
-- 
Alex Chekholko  

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