HP A3550A User Manual - A3661-90001 - Page 259

Troubleshooting Table 6-4 Power-Up Troubleshooting Condition and/or symptom Solution Power-up tests fail Inserting a FRU while the power-up tests are running can cause the tests to fail. Insert all FRUs and then cycle power to rerun the power-up tests. No CRU LEDs are on and the fans are not running Indicates no AC power is reaching the disk array's power supply unit(s). Check input AC power. If AC power is present, remove array power supply unit(s) and check for AC power at the internal AC power supply plug. Array fails to power up and the SP displays the message "A valid microcode image could not be found on any database drives." SP microcode is loaded from the database disk drives. If the database disks were removed from the disk array during installation, they may have been reinserted in the wrong slots and SP microcode cannot be found. A slot number label is affixed to each disk module at the factory. Match the slot number label on the disk module to the appropriate slot in the array. Random characters ("garbage") on terminal display Verify that the terminal configuration is set as follows: Datacomm config Baud rate 9600 Parity/Databits None/8 Termmode EM100 Disk array is powering up but garbage Check that the correct RS-232C cable is being used. See or nothing displays on the terminal. the Reference chapter for a list of cable part numbers. Disk array fault during power-up sequence. Array's FAULT LED on front panel is illuminated. A failed CRU should not stop the initial power-up tests. Power-up should complete and the faulted CRU should be indicated by a CRU FAULT, REPLACE or SERVICE LED. Replace the faulted CRU after power-up tests complete. The BBU may have discharged during power down. Subsystem fault will be indicated until BBU is fully recharged. BBU recharge message can be found in Unsolicited Event Log in Grid Manager. Power-Up Troubleshooting 6-11