Re: Backup of an courier-imap mailarchive
On Thu, 10 Jul 2008, Andrew McGlashan wrote:
You need to "e2fsck -fD" afterwards to index large *existing*
Can this be done with a file system that is mounted or must it be unmounted
e2fsck has to be run on an unmounted filesystem as usual. "e2fsck -n"
would not help, as this does not alter the filesystem and thus would not
add a directory index.
Also, how can you determine whether or not such htree index exists already?
There's lsattr(1) and the chattr(1) manpage explains:
The ’I’ attribute is used by the htree code to indicate that a
directory is being indexed using hashed trees.
It may not be set or reset using chattr(1), although it can be
displayed by lsattr(1).
I guess that dumpe2fs can be used to get this information as well, but
lsattr is so much easier :)
BOFH excuse #31:
cellular telephone interference