Bacula-users

Re: [Bacula-users] Slow restore performance

2008-08-21 14:44:06
Subject: Re: [Bacula-users] Slow restore performance
From: Ryan Novosielski <novosirj AT umdnj DOT edu>
To: bacula-users AT lists.sourceforge DOT net
Date: Thu, 21 Aug 2008 14:41:58 -0400
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John Drescher wrote:
>> As a conclusion: As far as I understand this fact, interleaving
>> (concurrent writing of up to 20 clients) causes significant performance
>> slowdowns while restoring? And would spooling help? Does spooling
>> unscramble the interleaved data?
>>
> Spooling will definitely help. I use a max spool size of 2 to 5 GB
> which keeps the drive pretty busy when multiple clients are
> concurrently running.

Will it spool the 2-5 GB for each client independently and then write to
the drive every once in awhile, or I wonder does it tend to spool then
write then spool then write, all jobs at once.

- --
 ---- _  _ _  _ ___  _  _  _
 |Y#| |  | |\/| |  \ |\ |  | |Ryan Novosielski - Systems Programmer II
 |$&| |__| |  | |__/ | \| _| |novosirj AT umdnj DOT edu - 973/972.0922 (2-0922)
 \__/ Univ. of Med. and Dent.|IST/AST - NJMS Medical Science Bldg - C630
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