Complete the following tasks in advance of upgrading:

• Check the latest Storage Foundation Release Notes to verify that the system is running a supported Linux version.

• Schedule sufficient outage time for the upgrade, and downtime for any applications using the VxFS file systems or VxVM volumes.

• To reliably save information on a mirrored disk, shut down the system and physically remove the mirrored disk. (This may not be practical, but if done, offers a failback point.)

• To upgrade on a remote host, rsh or ssh must be set up.

  See Configuring secure shell (ssh) or remote shell before installing products.

• Determine if the root disk is encapsulated.

  See Determining if the root disk is encapsulated.

• Select the method to upgrade.