Hello, This is my architecture Nfs1 ——/drbd-pacemaker-corosync/nfs2 Web1 ————— mount nfs share Web2 ——— ——mount nfs share 1) During failover VIP on pacemaker, I noticed my web1 and web2 hang on df -h or ls on nfsshare. For about 2 to 3 min. 2) if I set nfsver=4, I cannot perform a mount -a. It only works on nfsver=3 All my servers are running on centos 7.3. Could you guys, please help me? PS: sorry for my bad English, I’m French. Best regards, Omega BK-- 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