linux-kernel - what does e2fsck's "non-contiguous" really say?

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Message-ID: <46497EFD.6050900@wpkg.org>
Date:	Tue, 15 May 2007 11:35:57 +0200
From:	Tomasz Chmielewski <mangoo@...g.org>
To:	linux-kernel@...r.kernel.org
Subject: what does e2fsck's "non-contiguous" really say?

What does e2fsck's "non-contiguous" really say? I always thought it may 
give a clue about how a filesystem is fragmented.

However, I had set up a filesystem on a 365 GB RAID-5 array:

/dev/sdao             365G  195M  347G   1% /mnt/1

The filesystem contains only one directory (lost+found).

I ran e2fsck on that filesystem, and it says "9.1% non-contiguous":

# e2fsck -f part
e2fsck 1.39 (29-May-2006)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
part: 11/48594944 files (9.1% non-contiguous), 1574757/97187200 blocks

"9.1% non-contiguous" - what meaning does it really have?

-- 
Tomasz Chmielewski
http://wpkg.org
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