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Re: [linux-lvm] Running LVM on shared LUNs



On Tue, 2006-08-08 at 00:50 -0600, Lamont R. Peterson wrote:
> > The million dollar question is, can system1 and system2
> simultaneously
> > have both of the VGs active without hosing any data?
                                                  ^^ lvm metadata
> 
> As I understand it, only if you are using a filesystem that supports
> clustered operations, like GFS.
> 

Just to be clear, I should be able to issue [lv|vg]change -ay on both
systems simultaneously with no LVM corruption (data integrity will be
maintained by not starting a filesystems on both nodes simultaneously)
(as long as I don't start the filesystem on both nodes).

I would use something like GFS, but this is a HA setup for Lustre
oss/mds nodes :) 

Thanks again,
Josh


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