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Re: [Linux-cluster] doubts about using clvm



Some nitpicking first :-)
There is no such thing as a "GFS server" or "GFS client". The nodes that are mounting a GFS filesystem are usually called "GFS nodes"
However, there are indeed "GNBD servers" and "GNBD clients that exports and imports blockdevices.

So I understand your setup to be one node (the Ubuntu node) is acting as a GNBD server and exports two disk drives.
And then there are two nodes (the RHEL4 nodes) that acts as GNBD clients and imports the two disk drives. On these disk drives is the GFS filesystem.

I have not used CLVM with GFS yet, but with the old pool-driver (the volume manager that was shipped with GFS previously) this setup could be done in 2 different ways:
1. Combine the two disk drives on the GNBD server and export _one_ volume
2. Export _two_ volumes from the GNBD server and combine the volumes on the GNBD client / GFS nodes.

I would assume both ways would work with CLVM.


On 1/2/06, carlopmart <carlopmart gmail com> wrote:
Hi all,

  I am testing Cluster/GFS suite under my vmware lab. I have installed
two RHEL 4 with CS and GFS support. Another machine acts as a GFS
server (Ubuntu breezy server that has rhcs/gfs included).

  Ubuntu server has two phisycal disks exported by gnbd daemon and
RHEL   import these disks as a GFS clients. But I would like to export
these disks as a unique disk using LVM. Then, I need to start clvm
process under Ubuntu server or on RHEL clients??? Is it possible to
accomplish this?.

Thanks.
--
CL Martinez
carlopmart {at} gmail {d0t} com

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