> which I believe says the same.
>
> My goal is to abstract DomU instances from their embodied apps' data
> -- e.g., bind zones, apache web files, etc., and to centralize that
> data so as to be easy to backup.
I see.
> With your explanations (thanks!), and a bit of reading, I think
> OpenFiler in a DomU, booted early is my solution -- with subsequent
> VM's reading their apps' data/conf/etc from OpenFiler-published NFS
> partitions gets me 'there' ...
>
> Bottom line, I do need -- or at least want -- simultaneous access.
OK.
nb. block level devices such as NBD, iSCSI and friends are fine for a "read
many, write exclusive" setup - e.g. multiple domains mounting a device and
reading from it, but they must all unmount in order for a single writer to
modify the contents. This works without any fuss, using a normal non-cluster
filesystem. For some scenarios, this suffices.
Otherwise, good luck with your setup. IIRC, OpenFiler offer Xen-enabled
appliance downloads so that should serve your purposes.
Cheers,
Mark
--
Push Me Pull You - Distributed SCM tool (http://www.cl.cam.ac.uk/~maw48/pmpu/)
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