Re: (reiserfs) Re: LVM / Filesystems / High availability

Stephen C. Tweedie (sct@dcs.ed.ac.uk)
Wed, 24 Jun 1998 12:42:49 +0100


Hi,

On Tue, 23 Jun 1998 20:34:17 +0200, Michael Marxmeier <mike@msede.com>
said:

>> Is there really any overwhelming
>> justification for needing extra device-level support for this
>> functionality? Given that we _need_ filesystem support, my own
>> reaction is that splitting the support between fs and block
>> device just complicates the matter; it's better just to do it
>> in one place.

> I don't think the fs code should deal with RAID or HA functionality.
> So having different levels (with some defined interfaces) is
> probably the cleanest solution.

Please reread my post --- I'm advocating doing RAID and striping at the
block device level and resizing at the filesystem level. HA is more
complex than either; both mirroring and journalling are parts of HA, and
those two components obviously deserve treatment in separate areas.

--Stephen

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