Hitachi HF-W7500 65 Instruction Manual page 283

10. RAID1
7. When rebuilding has been completed, the HDD/SSD status lamp turns off and
RAID1 is restored. On the hardware status display window, click the Refresh button
and confirm that the RAID status is shown as [Optimal] and the drive status of the
drive bay where the drive was replaced is shown as "Healthy".
Hardware Status Window (Normal)
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