iiiTable of ContentsPreface ..................................................................................................................vAudience ..........................................................................................................vOrganization ....................................................................................................vDocumentation ...............................................................................................viTechnical Support and Customer Service .....................................................viiWarranty Information .................................................................................. viii1 Basic Storage Array Information................................................................. 1-1Array Front and Back Panels........................................................................ 1-1Interpreting Operations Panel LEDs ............................................................ 1-2Using an Electrostatic Wrist Strap ............................................................... 1-5Shutting Down and Restarting an Array ...................................................... 1-52 Maintaining Disk Drives ............................................................................... 2-1Removing the Bezel ..................................................................................... 2-1Interpreting Disk Drive LEDs ...................................................................... 2-3Disk Drive Handling Requirements ............................................................. 2-4Identifying Failed Disk Drives ..................................................................... 2-4Array Behavior When a Disk Drive Fails .................................................... 2-5Removing Disk Drives ................................................................................. 2-5Disk Drive Installation Guidelines and Restrictions ............................. 2-7Installing Disk Drives................................................................................... 2-7Installing the Bezel....................................................................................... 2-83 Maintaining Control Modules ...................................................................... 3-1Control Modules........................................................................................... 3-1Interpreting Control Module LEDs .............................................................. 3-2Identifying Control Module Failures............................................................ 3-3Understanding Failover Behavior ................................................................ 3-3Maintaining Control Module Firmware ....................................................... 3-4Network Configuration Recommendations.................................................. 3-5Connecting Network Cables......................................................................... 3-6Control Module Handling Requirements ..................................................... 3-9Removing a Control Module........................................................................ 3-9Installing a Control Module ....................................................................... 3-13Replacing the Firmware Card..................................................................... 3-15Replacing a Compact Flash Card ........................................................ 3-16