HP StorageWorks 1000 HP StorageWorks 1000 Modular Smart Array reference guide - Page 25

MSA1000 Hardware Components Power Supply/Blower Assemblies The MSA1000 includes redundant power supply/blower assemblies. The power supplies share the electrical load equally. If either supply fails or is removed, the other power supply assumes the full load without interruption. Hot-pluggability allows you to replace the failed supply without shutting down the MSA1000 storage system. The blowers work together to maintain an acceptable operating temperature. If one blower operates too slowly or completely shuts off, the other blower will begin to operate at a higher speed. Any changes in the performance level of the power supply or blower are reported on the LCD panel of the associated controller. For a description of the possible informational and error messages associated with the power supplies or blowers, see the definitions for messages numbered 400 through 499 in the HP StorageWorks 1000 Modular Smart Array Maintenance and Service Guide. Depending on the setup of Insight Manager 7 and System Event Analyzer, informational and error messages about the power supplies and blowers are also reported though these software components. Refer to the HP StorageWorks 1000 Modular Smart Array Maintenance and Service Guide for more information. HP StorageWorks 1000 Modular Smart Array Reference Guide 25