On Fri, Aug 04, 2006 at 03:02:34PM +0200, Goswin von Brederlow wrote:
> For dir_index you have to take the FS offline, tune2fs and fsck it or
> you totaly corrupt it.
Actually, that's not true. It's perfectly safe to run tune2fs on a
mounted volume to enable the dir_index feature. All directories from
that point on which grow beyond a single disk block will use the
hashed-tree optimization. "e2fsck -fD" run off-line is only needed in
order to upgrade existing large directories to use dir_tree.
(Of course, you can also do something like "cd ~/Maildir; mkdir
cur.new; mv cur/* cur.new; rmdir cur; mv cur.new cur" if you want, as
long as you are confident you don't screw up or confuse a currently
running mail client.)
- Ted
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