Browser Warnings; Controller Node Rescue-Automatic Node-To-Node Rescue; Controller Node Shutdown - HPE 3PAR StoreServ 7000 Storage Service And Upgrade Manual

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Controller Node rescue—Automatic Node-to-Node Rescue
Each Controller Node has an onboard Ethernet port (MGMT port) that connects the Controller Nodes in
the system together through the network in a cluster, which allows for a rescue to occur between an
active Controller Node in the cluster and the new Controller Node added to the system. This rescue is
called an automatic Node-to-Node Rescue and is used in place of needing to connect the Service
Processor (SP) for the rescue.
IMPORTANT:
For the automatic Node-to-Node rescue to occur for the new Controller Node being added to the
storage system, the network Ethernet cable must be connected to the MGMT port on this new
Controller Node before it is fully seated into the slot of the enclosure.

Controller Node shutdown

Prerequisites
CAUTION:
• Before shutting down a Controller Node, give adequate warning to users connected to resources
of the Controller Node being shut down.
• To avoid possible data loss, only shut down and remove one Controller Node at a time from the
storage system.
• Before shutting down a Controller Node in the cluster, confirm that the other Controller Nodes in
the cluster are functioning normally. Shutting down a Controller Node in the cluster causes all
cluster resources to fail over to the other Controller Node.
• If the Controller Node is properly shut down (halted) before removal, the storage system will
continue to function, but data loss might occur if the replacement procedure is not followed
correctly.
• Verify that host multipathing is functional.
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