From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jesse Keating <jkeating@pogolinux.com>
Subject: Re: [linux-lvm] Sharing LVM's via NFS on Redhat 8.0
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Date: Fri Feb 21 10:06:01 2003
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On Friday 21 February 2003 00:22, Patrick Caulfield uttered:
> Sharing over NFS is fine. What you are doing with NFS is sharing the
> filesystem. The dangerous behaviour mentioned is when you are sharing the
> actual block device that is the LV. A subtle but very important
> distinction.

If you want to share the actual block devices, look into HyperSCSI.  It allows 
you to "share" out your block devices, and clients can access them as local 
SCSI interfaces.  2 clients can access the same LVM group concurrently, just 
as if they were both on the same system.

http://nst.dsi.a-star.edu.sg/mcsa/hyperscsi/index.html <-- hyperscsi's home

http://geek.j2solutions.net/stuff/HyperSCSI <-- A test case I ran through 
yesterday.

-- 
Jesse Keating RHCE MCSE
Pogo Linux -- Support Tech
tel: 888.828.7646