[linux-lvm] lvm on a share environnement (SAN inside)
Chris Cox
chris_cox at stercomm.com
Thu Sep 27 17:36:27 UTC 2007
hubert chomette wrote:
> Hi,
> I recently install a SAN at my work. One lun is used for XEN and can be
> used by two xen server.
> For more flexibility I use lvm on this lun. I was very happy of the
> result, unless I discover (during a conversation with a friend) that lvm
> metadata can be compromised if the two server simulty modify metadata.
> - So what can I do?
Use seperate LUNs. I'm not sure what your friend is talking about.
Unless you have two machines using the same LUN, in which case
there are issues... this would be a cluster filesystem issue, or
near-high availability issue...
> - Is it possible to allow LVM metadata modification by only one server?
> - should I use clvm instead?
Metadata won't creep outside of what is visible.
> - Is it possible to migrate lvm to clvm without any data lost?
Not sure.
>
> thank's for your help
>
> regards,
>
> ps: sorry for my poor english
>
>
>
>
> _______________________________________________
> linux-lvm mailing list
> linux-lvm at redhat.com
> https://www.redhat.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>
--
Chris Cox
Sr. Unix Sys Admin
More information about the linux-lvm
mailing list