external journals, UUIDs and LVM
Matt Bernstein
mb/ext3 at dcs.qmul.ac.uk
Mon Sep 17 08:05:58 UTC 2007
Hi,
I'm starting to use LVM2 on my big servers. I'm using ext3 with
data=journal and the journals on different volume groups to the volumes.
"tune2fs -l" on the volumes show _both_ the UUID and device major/minor of
the journal, irrespective of which you specify during "tunefs -j".
With LVM the latter are dymanically allocated (0xfdnn), so may change from
boot to boot.
My question is: will mount find the journal by UUID? You can see it might
be fun if it doesn't ;)
Thanks
Matt
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