Friday, August 22, 2014

LSI MegaRAID - Recreate missing RAID 1 array

I have an LSI MegaRAID SAS 9260-4i Controller with two drives attached to it with a simple RAID1 array (virtual drive).



One of the disks failed (complete disappeared from the system) so I asked the datacenter to replace the failed drive.



After they replaced the drive, the controller lost all configuration regarding the RAID1 array it had configured.
Now during POST it shows:
enter image description here




After entering the controller configuration utility it shows both drives (old working one and newly replaced one) as unconfigured good.
It does not show though the 'Foreign' prefix so I cannot import the old configuration and recreate the missing RAID1 Array.
enter image description here



Doing a 'Scan Devices' did not find any foreign configuration for me to import.



How can I recreate the missing RAID1 array without losing any data?

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