[CentOS] Re: Recommendations

Wed May 23 21:21:51 UTC 2007
Scott McClanahan <scott.mcclanahan at trnswrks.com>

Any advice?

On Tue, 2007-05-22 at 17:36 -0400, Scott McClanahan wrote:
> We have two virtual machines on ESX 3 running CentOS 4.3 and we'd like
> to turn them into some sort of highly available nfs file server.
> Currently, I am familiar with DRBD and RHCS but I was curious what
> others might recommend in such a situation.
> 
> I'm not sure how easily we could use RHCS in such a situation because we
> don't really have the advantage of shared storage in this setup.  We are
> strictly limited to the two boxes.  Having said that, it would be nice
> to have some of the exports running on one node (tied to a VIP) and
> others on the other node (tied to another VIP) if possible and manage
> those services individually if needed.  So basically both nodes would be
> exporting select locations at any given time on this highly available
> file system.  That is not 100% necessary but it would be nice if the
> capability is there.  I would assume some sort of fencing mechanism
> would need to been in place as well.
> 
> This might not be the best place to ask an ESX question but would 'raw
> device mapping' work in such a scenario?  I don't know much about it.
> 
> I can give more details if needed but hopefully this is enough for some
> suggestions.  Thanks!