[Pacemaker] support for nfs v3 client

[Liang.Ma at asc-csa.gc.ca]

Hi There,

I have setup a pair of primary/secondary servers for services such as web, ftp, samba and nfs with pacemaker 1.1.1, drdb-pacemaker 8.3.7, corosync 1.2.7 on Fedora 13. Things work well except for an old Solaris 2.7 client. The Solaris system can't mount to the nfs server because it can support NFS v3 not v4. From tcpdump this is what goes wrong with a pure NFS v3 client,

19:55:02.886062 192.168.249.150.39331 > 10.1.1.200.sunrpc:  udp 84 (DF)
19:55:02.886625 10.1.1.199.sunrpc > 192.168.249.150.39331:  udp 28 (DF) 
20:01:12.741180 192.168.249.150.52440 > 10.1.1.200.sunrpc:  udp 84 (DF)
20:01:12.741667 10.1.1.199.sunrpc > 192.168.249.150.52440:  udp 28 (DF)

Where 10.1.1.200 is the virtual IP address and 10.1.1.199 is the IP address of the primary server. If I try to mount to the non-virtual address 10.1.1.199, it works fine. But obviously this is what we want with a virtual server.

Originally I used resource agent lsb:nfs. Then changed to ocf:heartbeat:nfsserver with specific parameter pointing to the virtual address 10.1.1.200. Plus I added rpcbind which takes care sunrpc request as a virtual service too (see the related configuration below please). It has the same thing as before: The virtual server responds with its physical address. 
primitive nfs ocf:heartbeat:nfsserver \
	params nfs_ip="10.1.1.200" nfs_shared_infodir="/var/drbdata0/exports" \
	params nfs_init_script="/etc/init.d/nfs" nfs_notify_cmd="/sbin/rpc.statd" \
	op monitor interval="5s" timeout="20s" depth="0" \
	meta target-role="Started"
primitive rpcbind lsb:rpcbind \
	op monitor interval="50s" \
	meta target-role="Started"

The virtual NFS service works fine with nfs clients that support NFS v4. Any ideas please?

Thanks in advance.

Liang Ma
Contractuel | Consultant | SED Systems Inc. 
Ground Systems Analyst
Agence spatiale canadienne | Canadian Space Agency
6767, Route de l'Aéroport, Longueuil (St-Hubert), QC, Canada, J3Y 8Y9
Tél/Tel : (450) 926-5099 | Téléc/Fax: (450) 926-5083
Courriel/E-mail : [liang.ma at space.gc.ca]
Site web/Web site : [www.space.gc.ca ]