MegaRAID 9260-8i is configured with 2 x HDD as RAID 1 without hot spare. But, when I removed one HDD and
inserted the original HDD back, the RAID cannot be rebuilt automatically. In the RAID Utility, it indicates the
HDD as (Foreign) Unconfigured Bad.
Please insert a new HDD which was not configured as RAID. Or, please install the original HDD into
another RAID card and clear/delete its RAID configuration before you insert it into the degraded RAID.
That is, if the HDD is new or has not been configured as RAID, the RAID can be rebuilt automatically.
If you re-plug back the original HDD, RAID card will detect “Foreign” RAID configuration on that HDD. In that
case, RAID card will wait for user to confirm next step. Then, you need to follow below procedure to manually
rebuild the RAID.
a. Please launch the RAID utility.
b. Right click the HDD marked as “(Foreign) Unconfigured Bad” and select Change to Unconfigured Good.
c. Right click that HDD again and select Replace Missing Drive.
d. Click “OK” at pop up Windows, the drive will become “Offline”
e. Right click the HDD marked as Offline and select Start Rebuild.