Hitachi HF-W2000 58 Instruction Manual page 254

(a) Replacing an HDD with the equipment turned on
1. Back up your data.
(See (2) Backing up files in 4. Hard Disk Drives (HDDs) and Solid State Drives (SSDs) in PRECAUTIONS.)
2. Close all running applications.
3. Double-click the hardware status icon shown in the notification area of the taskbar to open the Hardware status
window. In the Hardware status window, check for defective HDDs.
Verify that the DRIVE1 status lamp is lit.
Note that the DRIVE1 status lamp might take 20-30 seconds or more to light up.
4. Remove the defective HDD from the equipment.
(See 6.3.6 Installing and removing an HDD or SSD.)
Hardware status window
10-11
Hardware status icon
10. SOFTWARE RAID1