heavily fragmented file system.. How to defrag it on-line??
tytso at mit.edu
Thu Mar 4 02:17:07 UTC 2004
On Wed, Mar 03, 2004 at 03:01:35PM -0800, Guolin Cheng wrote:
> I got machines running continuously for long time, but then the underlying ext3 file systems becomes quite heavily fragmented (94% non-contiguous).
Note that non-contiguous does not necessarily mean fragmented. Files
that are larger than a block group will be non-contiguous by
definition. On the other hand if you have more than one file
simultaneously being written to in a directory, then yes the files
will certainly get fragmented.
Are you a sufficient read-performance degredation? If not, it may not
be worth bothering to defrag the filesystem.
> Anyone have any ideas on defraging ext3 file systems on-line? Thanks a lot.
There rae no on-line defrag tools right now, sorry.
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