3.1.2 Matrix Server Upgrade Guide

Chapter 3: Single Upgrade Procedures 25

27. Repeat steps 24 through 26 until all of the nodes have been upgraded.

28. On the node that was upgraded first, run the following command:

# ./mxfsmigrate.sh --end

The upgrade is now complete.

If you want to enable filesystem quotas on your PSFS filesystems, you

will need to unmount the filesystems one-at-a-time (or one export group

at-a-time) and then perform the upgrade. Use the following procedure to

unmount the filesystems. For more information about quotas, see “Enable

or Disable Quotas” in Chapter 8 of the PolyServe Matrix Server

Administration Guide.

Unmount Filesystems on Clusters With MxFS-Linux

When unmounting filesystems, you should be aware of the following

problem, which is also documented in the release notes as defect 10742.

Before a PSFS filesystem can be unmounted, all processes must release

their references on the filesystem. The NFS server process retains these

references on exported filesystems, and prevents the filesystem from

being unmounted.

To work around this problem, you will need to take the following steps to

unmount a PSFS filesystem that is being exported from an Export Group.

(This procedure does not impact other Export Groups exporting different

filesystems via the same server.)

1. Disable the Export Groups that are exporting the filesystem to be

unmounted. You will need to disable the Export Groups on each

server from which the filesystem is to be unmounted.

2. Run the command exportfs -ua on each server where the filesystem

will be unmounted.

3. Unmount the filesystem from the servers. If you see a “device busy”

message, run the exportfs -ua command again and then repeat the

unmount operation.