If you haven't yet bought hardware for the NFS, NetApp makes this a snap with SnapMirror. I don't remember all of the ins and outs, but its perfect for situations like this, its very bandwidth efficient, and its got the same bullet-proof reliability their products are known for.
Otherwise I'd think your SAN vendor should have some form of block level replication available. Hope that helps, Nick -----Original Message----- From: DAve [mailto:[EMAIL PROTECTED] Sent: Monday, January 29, 2007 3:59 PM To: vpopmail Subject: [vchkpw] NFS Clustering Good afternoon/evening/morning, We have been tasked with splitting our mail services between our two NOCs. We have ordered a 1GB fiber connection between both locations. We will be moving one of two mailgateways, two of four pop toasters, and one of two smtp servers to the second NOC. Both border routers will be BGP advertising the same IP range and each location will have hardware load balancing. I can easily setup replication for my MySQL backend, but my NFS mail store is another concern. Is anyone else working with this type of configuration? I've not yet looked into NFS clustering or what may be involved. (I will have a iSCSI based SAN available which will have nodes/modules in both geographical locations, which may help). Any advice on what methods/tools work well is appreciated. Thanks, DAve -- Three years now I've asked Google why they don't have a logo change for Memorial Day. Why do they choose to do logos for other non-international holidays, but nothing for Veterans? Maybe they forgot who made that choice possible.