Batteries

SAN Volume Controller 2145-DH8 and SAN Volume Controller 2145-SV1 nodes contain two batteries that provide backup power to the system.

The battery within a node supplies power only to that node.

If power to a SAN Volume Controller 2145-DH8 or SAN Volume Controller 2145-SV1 node is lost, the system starts to save critical data after a 5-second wait. The saving of critical data runs to completion, even if power is restored during this time. If the power outage is shorter than 5 seconds, the battery continues to support the node and critical data is not saved.

On SAN Volume Controller 2145-DH8 and SAN Volume Controller 2145-SV1 systems, the canister batteries periodically discharge and charge again to maintain the battery life.