Hitachi HF-BX1000 Instruction Manual page 190

Note: The screen above shows the case where the HDD mounted in drive
bay 2 has failed.
[4] Shut down the OS, unplug the power cable from the outlet, and wait for at least one
minute. Then replace the faulty HDD with a new one. (See "5.3.5 Installing and
removing an HDD".)
[5] When you turn on the equipment, the RAID board automatically detects a new HDD and
starts reconfiguration. Check that the HDD status lamp on the new HDD is flashing.
[6] The OS starts while reconfiguring the system. The time required for reconfiguration
depends on the applications that run during the reconfiguration. Therefore, do not run a
new application until the reconfiguration is finished.
If you do not want to have the OS start, press the F2 key while a message saying the
system is being initialized is being displayed (during a BIOS memory check) after turning
on the equipment to start the BIOS setup menu.
[7] When the HDD status lamps go out, reconfiguration is completed.
If the BIOS setup menu is started in step [6], open the upper menu "Exit", move the
cursor to "Save Changes and Exit", and press Enter. A message "Save configuration and
exit?" is displayed. Press Enter to restart the equipment.
[8] After reconfiguration is finished, in the Hardware status window, confirm that both
HDDs are healthy and the RAID status is "Optimal".
Hardware status window
8-7
Hardware status icon
8. RAID1