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

[Tomasz Chmielewski <mangoo@wpkg.org>]

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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