Requirements for hardware-assisted takeover
The hardware-assisted takeover feature is available on systems where the Service Processor module is configured for remote management. Remote management provides remote platform management capabilities, including remote access, monitoring, troubleshooting, logging, and alerting features.
If your cluster consists of a single HA pair
Cluster high availability (HA) is activated automatically when you enable storage failover on clusters that consist of two nodes, and you should be aware that automatic giveback is enabled by default. On clusters that consist of more than two nodes, automatic giveback is disabled by default, and cluster HA is disabled automatically.
Storage configuration variations for HA pairs
Because your storage management and performance requirements can vary, you can configure HA pairs symmetrically, asymmetrically, as an active/passive pair, or with shared disk shelf stacks.
HA pairs and storage system model types
Different model storage systems support some different HA configurations. This includes the physical configuration of the HA pair and the manner in which the system recognizes that it is in an HA pair.