HP A3550A User Manual - A3661-90001 - Page 255

Troubleshooting Table 6-2 Disk Array LEDs LED Array condition when LED is on Array condition when LED is off Array Front Panel Power supply units are operating Disk array is powered off or, if it has POWER-ON (green) and providing power to the midplane been running, has lost the +24 VDC +24 VDC bus. bus. Array Front Panel FAULT (amber) Disk array has detected a fault in one Normal operation of the FRUs. Disk Module READY (green) Disk module is operational and ready Drive is busy (if BUSY LED is on) or to send and receive data. has faulted (if FAULT LED is on). Disk Module BUSY (green) Disk module is sending or receiving Drive is ready (if READY LED is on) data or is hung. or has faulted (if FAULT LED is on). Disk Module FAULT (amber) Disk module has encountered a fault Drive is ready (if READY LED is on) and cannot be accessed. or busy (if BUSY LED is on). Fan Pack Fan pack has detected that one of REPLACE (amber) the fans faulted. Normal operation SP READY (green) Normal operation Disk array is off, not providing power to the +24 VDC bus, or the SP has faulted (if SERVICE LED is on). SP SERVICE (amber) SP has just been powered on and is running power-up self-tests or has encountered a fault and no longer is configured in the array. Normal operation Power Supply Unit Normal operation READY (green) Disk array power is off (no AC power reaching the power supply unit) or the power supply unit has faulted (if REPLACE LED is on). Power Supply Unit REPLACE (amber) Power supply unit has encountered a Normal operation fault and is no longer configured in the array. BBU BBU has encountered a fault and is Normal operation REPLACE (amber) no longer operational. Disk Array Chassis 6-7