I have two NFS servers with NFSV4 exports whose data are synced via Unison. I want one server to be a hot standby for clients to use in case something happens to the primary NFS server. The NFS exports look like this: /home 192.168.0.0/24(rw,fsid=0,insecure,no_subtree_check,async,repli cas=/home@msdevnfs1:/home@msdevnfs2) The mount in fstab looks like this: msdevnfs1:/ /home nfs4 _netdev,auto 0 0 -Brandon -----Original Message----- From: linux-nfs-owner@xxxxxxxxxxxxxxx [mailto:linux-nfs-owner@xxxxxxxxxxxxxxx] On Behalf Of J. Bruce Fields Sent: Thursday, April 22, 2010 11:22 AM To: Brandon Shandelson Cc: linux-nfs@xxxxxxxxxxxxxxx Subject: Re: NFSV4 Replica Support? On Thu, Apr 22, 2010 at 11:16:20AM -0700, Brandon Shandelson wrote: > I want to use NFSV4 replicas on Ubuntu 9.10 64-bit servers. It doesn’t seem > to work. It *looks* like the server kernel module supports it, but the NFS > client does not. Is this the case, or should I be able to make replicas > work on Linux? What are you actually trying to do? There's a little support for replication in that the NFSv4 server can be told to report certain locations as having the same data, but it's not really supported yet: you need smoething to create the replicas for you (probably doable with GFS2 as the exported filesystem, or by sharing the filesystem image if it's read-only). I don't think the Linux NFSv4 client knows how to use that information yet. --b. -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
