Bacula-users

[Bacula-users] Fragmentation of restored file

2009-10-13 04:12:57
Subject: [Bacula-users] Fragmentation of restored file
From: justAck <andy78 AT i DOT ua>
To: bacula-users AT lists.sourceforge DOT net
Date: Tue, 13 Oct 2009 01:08:55 -0700 (PDT)
Hi,
I still have to learn bacula internals, but urgently need answer for
question regarding fragmentation of restored file(s).

Perhaps someone did backup of heavily fragmented file (size: ~100G) and then
restored it to clean XFS volume on idle box.
What is more likely:
a) result file will be most likely not fragmented on disk at all
b) result file may become fragmented if <some condition>
c) result file will be as fragmented as initial file was
d) result file may be even more fragmented as initial file was

The problem is that copying of restored file is ~20% slower than expected
(than other files), I doubt if bacula may be a reason of this slowdown (e.g.
result of restore is very fragmented). 

Please advice.
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