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cannot defrag volume, fragmentation factor 21.73%

To: xfs@xxxxxxxxxxx
Subject: cannot defrag volume, fragmentation factor 21.73%
From: Richard Ems <richard.ems@xxxxxxxxxxxxxxxxx>
Date: Mon, 18 Oct 2010 14:09:52 +0200
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20100914 SUSE/3.1.4 Thunderbird/3.1.4
Hi all,

this is on openSUSE 11.3.

# uname -a
Linux fs1 #1 SMP 2010-09-20 15:27:38 +0200 x86_64 x86_64 x86_64 GNU/Linux

# echo frag | xfs_db -r /dev/disk/by-label/data1
xfs_db> actual 6451844, ideal 5050129, fragmentation factor 21.73%

# xfs_db -V
xfs_db version 3.1.2

# xfs_fsr -V
xfs_fsr version 3.1.2

# df -h /dev/sdb1
Filesystem            Size  Used Avail Use% Mounted on
/dev/sdb1              17T   13T  4.3T  75% /data_1

The volume is new, 12TB were rsync'ed from another volume, some new files came after the sync.

I ran several times xfs_fsr, but the 21.73% factor stays there.
There where some busy or modified files on which I started xfs_fsr later again, but this ones where small files and the 21.73% is still there.

Any ideas?


Richard Ems       mail: Richard.Ems@xxxxxxxxxxxxxxxxx

Cape Horn Engineering S.L.
C/ Dr. J.J. Dómine 1, 5º piso
46011 Valencia
Tel : +34 96 3242923 / Fax 924

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