I manage Raid 1 with LSI Controller ( SAS9211-8i ). Recently one of the Hard drives failed, I replaced him and booted the machine, Entered the LSI utility, and I noticed it's 'Rebuilding' and syncing the raid. But, after about 30% of syncing, I received 'Failed' status over the 'Rebuilding' on the new hard drive. I also tried to replace the new hard drive with a different new one, Same error.
I have no clue why is it Failing all the time. and because the raid 1 is in status 'Degraded', My OS booting as 'read-only' mode and won't function properly.
Thanks a lot for the helpers!