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Re: [Linux-cluster] requirements question

On Mon, Jul 26, 2004 at 05:17:53PM -0400, linux-cluster-rhn chaj com wrote:
> We've got a fiber channel connection from two nodes to a single san storage
> share (through a brocade). We're looking to export nfs from one of the hosts
> with the other host as failover. As a test, I patched a 2.6.7 kernel and
> compiled the necessary utilities according to
> http://gfs.wikidev.net/Installation. I used LVM2 to create a logical volume on
> the san device (/dev/sda1), gfs_mkfs'd the device according to the clustering
> config that I made, and successfully mounted the lv on both hosts as a local
> drive. Is it necessary for us to use LVM if the san is already doing the
> raid/redundancy? What is the bare minimum in terms of daemons that we'd need
> in order to run the above setup? I'm thinking it'd be something like:
> ccsd
> cman_tool join
> clvmd
> mount -t gfs /dev/sda1 /mnt/san-name

Without CLVM the steps reduce to:

cman_tool join
fence_tool join
mount -t gfs /dev/sda1 /mnt

> Also, what suggestions do you have for an automatic failover system for the
> two hosts? I imagine some sort of heartbeat package. Thanks for your time.

The "Resource Manager" will do NFS failover:

Dave Teigland  <teigland redhat com>

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