HP Surestore Disk Array FC60 HP SureStore E Disk Array FC60 Service Manual (A5 - Page 22

Operation Features The disk enclosure is designed to be installed in a standard 19-inch rack and occupies 3.5 EIA units (high). Disk drives mount in the front of the enclosure. Also located in the front of the enclosure are a power switch and status LEDs. A lockable front door shields RFI and restricts access to the disk drives and power button (Figure 3 on page 23). BCCs are installed in the back of the enclosure along with redundant power supplies and fans. Status Indicators LEDs on the front and back of the disk enclosure enable you to quickly identify and replace failed components, thereby preventing or minimizing downtime. "Troubleshooting" on page 207 provides more detailed information about the operation of these LEDs. Two system LEDs on the front, top right corner of the disk enclosure (A in Figure 3) indicate the status of the disk enclosure. The left LED indicates when power is on or off and the right LED identifies if a fault has occurred. Additional pairs of LEDs above each disk slot (D in Figure 3), indicate disk activity and a fault condition. The left LED (green) indicates disk I/O activity and the right LED goes on if the disk module has experienced a fault. The disk fault LEDs are also used by the management tools to identify a specific disk module by flashing its fault LED. On the back of the disk enclosure, the following LEDs (K) indicate the status of replaceable components and Fibre Channel link: - Power supply status and fault LEDs - Fan status and fault LEDs Bus Controller Card LEDs: - BCC Fault LED - Term Power LED (monitors power on the SCSI bus) - Full Bus Mode LED - LVD Mode LED - Bus Free Status LED For detailed information on LED operation, refer to "Troubleshooting" on page 207 22 Disk Enclosure Components