[nfs-discuss] NFS service failover to backup server

2007-10-04 Thread Oliver Haertel
Just in case anybody is actually reading, I managed to get snoop loging NFS traffic, while an ESTALE occured: 159751 0.3 nfsclient.domain.net -> nfssvr.domain.net NFS C 4 (write ) PUTFH FH=4F4F WRITE ST=SPC0 at 126451712 for 21869 (retransmit) 159752 0.00036 nfssvr.domain.net -> n

[nfs-discuss] NFS service failover to backup server

2007-10-04 Thread Oliver Haertel
switching NFS back and forth - nodeA, nodeB. Sometimes it works, but not always the NFS client comes across the following: Oct 4 11:27:00 big-7 nfs: [ID 236337 kern.info] NOTICE: [NFS4][Server: nfs][Mntpt: /mnt]NFS op OP_RENEW got error NFS4ERR_STALE_CLIENTID causing recovery action NR_CLIENTI

[nfs-discuss] NFS service failover to backup server

2007-10-02 Thread Oliver Haertel
Hi all, with NFS v3 I had following setup: 1 RAID system several LUNs 2 servers providing NFS service (nodeA, nodeB) I'd set up the two servers making sure the disks they export have identically configured major/minor number. Finally I set up an virtual interface and I was done. With NFSv4 th