We are not using automounter for this volume.

The Oracle Binaries are on the local disks as opted by our Oracle DBA's

The u01 volume has the Archive Logs so oracle does not fall over with the loss of this volume. However, oracle does pause while the volume is down.

I have done a snoop on the system and it looks as though there is an NFS mismatch, whereby its mounted up with NFS version 3, but some time later, it changes to NFS version 1 and then unmounted.

This definalty looks like fun.

-----Original Message----- From: Brian Tao [mailto:taob@risc.org] Sent: 05 September 2001 03:44 To: Noll, Kevin Cc: 'toasters@mathworks.com' Subject: Re: Volumes unmounting

On Wed, 5 Sep 2001, Noll, Kevin wrote:

All volumes are mounted on this one E4500, but what we have expereienced is that from filer A, the /vol/u01 mount point UNMOUNTS periodically. About 10 times a day. Yet the rest of the volumes dont.

You're not using automounter are you? These should be permanent NFS mounts defined in your /etc/vfstab. Even with automounter, assuming Oracle is actually running, Solaris tends not to umount filesystems with open files on them. I'm guessing your Oracle binaries and config files are in /u01/app/oracle/product/etc, etc. and so the loss of that filesystem pretty much means your database has to be shut down first.