[Linux-cluster] defragmentation.....

Alan Brown ajb2 at mssl.ucl.ac.uk
Thu Jun 2 09:34:43 UTC 2011

GFS2 seems horribly prone to fragmentation.

I have a filesystem which has been written to once (data archive, 
migrated from a GFS1 filesystem to a clean GFS2 fs) and a lot of the 
files are composed of hundreds of extents - most of these are only 1-2Mb 
so this is a bit over the top and it badly affects backup performance.

Has there been any progress on tools to help with this kind of problem?


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