Dell DD and PowerProtect Hardware 8.0 Features and Specifications

If the system exceeds the maximum ambient temperature by approximately 10°C (18°F), the storage processors (SPs) in the processor enclosure begin an orderly shutdown that saves cached data, and then shut themselves down. Link control cards (LCCs) in each DAE power down their disks but remain powered on. If the system detects that the temperature has dropped to an acceptable level, it restores power to the SPs and the LCCs restore power to their disk drives.