Migrating the Virtual I/O Server

You can migrate the Virtual I/O Server (VIOS) from version 1.x to version 2.x in the Hardware Management Console (HMC) Version 7, or later, from a DVD device that is attached to the Virtual I/O Server logical partition. To migrate the Virtual I/O Server from VIOS version 2.x to version 3.x, or later, use the viosupgrade command.

Before you start the migration from VIOS version 1.x to version 2.x, verify that the following statements are true:
  • The system on which you plan to migrate the Virtual I/O Server is managed by a Hardware Management Console (HMC) Version 7, or later.
  • The Virtual I/O Server is at Version 1.3, or later.
  • The rootvg volume group is assigned to the Virtual I/O Server.

Usually, user configuration files from the previous version of the Virtual I/O Server are saved when the new version is installed. If you have two or more Virtual I/O Server logical partitions in your environment for redundancy, you are able to shut down and migrate one Virtual I/O Server logical partition without interrupting any clients. After the migration is complete and the Virtual I/O Server logical partition is running again, the logical partition will be available to clients without additional configuration.

Attention: Do not use the Virtual I/O Server updateios command to migrate the Virtual I/O Server.