The uninterruptible power supply protects a SAN Volume Controller node against blackouts, brownouts, and power surges. The uninterruptible power supply contains a power sensor to monitor the supply and a battery to provide power until an orderly shutdown of the system can be performed.
SAN Volume Controller models use the 2145 UPS-1U. SAN Volume Controller 2145-4F2 uses either the 2145 UPS-1U or the 2145 UPS.