Pete Deffendol wrote:
Hi,
I can't seem to find any concrete answer by searching documentation,
so hopefully someone here can help:
I want to install a new Xen host with a number of guests, all running
RHEL5. I'd like to make users' home directories (and maybe more)
available to all of the hosts. How can I set up the guest and hosts
to share the /home partition between them? Links to documentation
and/or pieces of relevant software would be useful. I consider myself
skilled in matters of single-system administration, but virtualization
is new to me. I've only used NFS to share between physical systems in
the past.
Thanks,
Pete
Hi,
there's no Xen specific shared file system (at least not currently,
there's some slow going effort
around XenFS but it hasn't moved in a while) to share data between
guests on the same host
(and it would be of limited use if it's localized to a single host).
You could/can share an individual (virtual) block device between
guests but you still
need some sort of co-ordinating entity such as GFS and/or
Your best options would be either to use NFS and share /home between
your guests like
you did in the past between multiple physical servers/systems. Or
you could use
GFS if you a smaller number of guests and are looking for a general
purpose shared
filesystem.
There's a recent article on how to setup and configure clustering
and GFS with guests
for failover and data sharing. The article (and links to other
related articles) can
be found at
http://www.redhatmagazine.com/2007/08/23/automated-failover-and-recovery-of-virtualized-guests-in-advanced-platform/
Hth,
Jan
- Jan
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