Hitachi HF-W2000 58 Instruction Manual page 260

(2) Rebuilding with the OS deactivated
NOTE
Use the recovery DVD "HITACHI HJ-205x-***B Product Recovery DVD" to enable rebuilding with the OS
deactivated. Prepare this DVD before starting your work.
(The text indicated by the underlined asterisks (***) in the name of the DVD varies depending on the equipment
you are using.)
1. Back up your data.
(See (2) Backing up files in 4. Hard Disk Drives (HDDs) and Solid State Drives (SSDs) in PRECAUTIONS.)
2. Shutdown the OS and unplug the power cord. Wait for at least one minute, and then replace the defective HDD
with a new one.
(See 6.3.6 Installing and removing an HDD or SSD.)
3. Perform rebuilding by using the software RAID utility by referring to 10.6.2 Starting and exiting the software
RAID utility and 10.6.4 Rebuilding feature.
4. After rebuilding is complete, run the OS and verify that the status of both HDDs is normal in the Hardware
status window.
10-17
10. SOFTWARE RAID1