HP A3550A User Guide - Page 280

LED ON OFF Front Panel POWER-ON (green) Front Panel FAULT (amber) The power supplies are operational The array is powered off or, if the and are providing +24 VDC to the array has been running, the disk midplane +24 VDC bus. array has lost the +24 VDC bus. The array has detected a fault in one Normal operation of the FRUs. Disk module READY (green) Disk Module BUSY (green) Disk Module FAULT (amber) Fan pack REPLACE (amber) The disk module is operational and Drive is busy (BUSY LED lit) or there ready to receive/send data. is a fault (FAULT LED lit). Disk module is receiving or sending Drive is ready (READY LED lit) or data or is hung. there is a fault (FAULT LED lit). Disk module has encountered a fault Drive is ready (READY LED lit) or condition and cannot be accessed. busy (BUSY LED lit). Fan pack detected a fault with one of Normal operation the fans. SP READY (green) SP SERVICE (red) Normal operation Array is off (or failing to provide +24 VDC to the +24 VDC bus) or the SP has a fault (FAULT LED lit). SP has just been powered on and is running power-on self-tests or has encountered a fault condition and is no longer configured in the array. Normal operation Power Supply Unit READY (green) Power Supply Unit REPLACE (amber) BBU READY (green) BBU CHARGING (green) Normal operation Power supply has encountered a fault condition and is no longer configured in the array. Normal operation Array is off (no AC power reaching the power supply) or the power supply has a fault (FAULT LED lit). Normal operation Normal operation Batteries in BBU are being charged. Normal operation BBU REPLACE (amber) BBU has encountered a fault and is Normal operation no longer operational. Troubleshooting 8-7