Deciding whether to use this guide

This guide describes how to upgrade controller hardware of an AFF (AFF) system or a FAS system in a cluster by moving storage or volumes.

You should use this guide if you want to upgrade controller hardware in the following situations:

If you are upgrading a two-node MetroCluster configuration, you must use the procedure in the MetroCluster Service and Expansion Guide.

If you are replacing an individual component, see the field-replaceable unit (FRU) flyer for that component.

This guide does not describe how to use aggregate relocation to upgrade controller hardware.