The PowerStore X model appliance is fully redundant with nodes that are in the form of controller VMs. Each node has a controller VM that provides data services. Each of the controller VMs is deployed onto private datastores that represent the physical M.2 device that is inside the node. Because these datastores are not shared, if a node fails, the controller VM does not restart on any other host in the cluster. However, since PowerStore is fully redundant, the peer node that is running the other controller VM continues to service I/O to the appliance. The two controller VMs act as the HA pair for the appliance. The controller VM should not be moved and should not have any settings changed.
When administrators are using virtual machines on either the PowerStore T or PowerStore X model appliances, we recommend enabling vSphere HA on the cluster. If a node or host in the cluster loses power, virtual machines restart on a surviving host or node in the cluster.
Both PowerStore T and PowerStore X model appliances enable integration with VMware environments by being managed and monitored from a vCenter. For PowerStore T model appliances, a vCenter connection is optional after the cluster has been set up. For PowerStore X model appliances, a vCenter connection is required during the initial configuration wizard. After a cluster has been deployed, there could be certain situations where a vCenter connection is lost to the PowerStore appliance. In this scenario, management tasks through vCenter might be temporarily unavailable. Note that I/O continues to be processed for all storage objects in the PowerStore appliance.