I know how RAID work and prevent data lost from disks failures. I want to know is possible way/how easy to recover data from unfunctioned remaining RAID disks due to RAID controller failure or whole system failure. Can I even simply attach one of the RAID 1 disk to the desktop system and read as simple as USB disk? I know getting data from the other RAID types won’t be that simple but is there a way without building the whole RAID system again. Thanks.
Never work directly with a surviving disk, clone it and work with the cloned drive.
Are you sure you can’t rebuild the RAID? That really is the best solution in many cases.
If a RAID failure is within tolerance (1 drive in a RAID5 array) then it should still be operational. Make a backup before rebuilding if you don’t have one already.
If more disks are gone than that then don’t count on recovering all data even with data recovery tools.
Yeah, if there’s a full system failure without any backups and no option to get the system operational again then I would land in clone the drives before trying to restore data from them.
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The OP made clear it was a controller failure or entire system (I read hardware here) failure. Which does complicate things somewhat.
Yeah, if there’s a full system failure without any backups and no option to get the system operational again then I would land in clone the drives before trying to restore data from them.