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filesystem fragmentation stats?



Let me preface this by saying "Yes, I know *nix filesystems don't need to worry about fragmentation".

That said, is there a way to check the overall level of fragmentation of a live ext3 filesystem? I know about filefrag, but that's for specific files. And I think e2fsck tells you, but only if you take the filesystem offline for the scan. Is there anything that will give a percentage for a *live* filesystem? (I have a fs that's been at >95% usage for quite some time, and I want to check for any fragmentation that could have resulted.)

Damian Menscher
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