On Wed, 22 Oct 2003 Ambrose_Earle@shamrockfoods.com wrote:
Just a poll to see who attempts to disconnect/unmount every possible client (server) before attempting a DataONTAP upgrade and who types download; reboot.
Does anyone leave their Oracle databases mounted via NFS over UDP up the whole time?
For our databases, we usually shut them down before doing anything on the filers, if we can. A couple weeks ago, a cluster parter rebooted then took down its partner on its way up; the DBAs never even noticed. When they asked about the cluster partner we told them that both had gone down and they asked if we were serious. When we didn't laugh, they rushed to check their logs to make sure everything was ok (and everything was ok).
By and large, if we have individual NFS clients attached during a reboot, they can the 30 seconds it takes for the filer to reboot. We have had isolated instances where older SunOS systems (and maybe our Solaris 2.6 FlexLM license servers) have a problem with automounted NFS mounts, so those are usually shutdown in the event we have some planned downtime. Other than that, most people just blame it on the network and keep on going.
Geoff