Upgrading hardware
There are different methods available for upgrading from an older appliance to an M2003 appliance, or for replacing a failed M2003 appliance in a high availability (HA) or disaster recovery (DR) configuration.
If you are upgrading from M2002 appliances in an HA, DR, or HA/DR configuration to M2003 appliances, you can use the steps described in Replacing a failed appliance.
Replacing a failed appliance
If an appliance fails that is part of an HA or DR configuration, consult the following topics for
guidance for replacing the failed appliance: