Hitachi HF-W6500 Instruction Manual page 269

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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