3 Replies Latest reply on Oct 21, 2014 6:42 AM by allan_intel

    Reset disks to Non-RAID, again

    Damiracle

      I know there are a few topics here already regarding this issue, but I could not find a suitable answer. Here is the situation:

       

      My ex-boss is a lucky owner of a cute Sony Vaio notebook with a 256 Gb SSD (according to specs). In reality, it has 2x128 Gb SSD's in a striped RAID0 array, which he discovered the hard way, after calling in an IT guy to fix some annoying but harmless error at boot time. The guy poked around the BIOS and decided to "Reset disks" (before reading the rest of the phrase "to NON-RAID") in Intel Storage Manager. Now they are stuck with a "No operating system found" message and two Non-RAID disks. This is where I came in.

       

      After some googling around I learned that the way to go is to download TestDisk or Parted Magic, which I did (as part of Ultimate Boot CD). I ran some checks, but both tools (and some ERD disks the IT guy brought) only see two unallocated disks, with no partitions. In some threads users also suggest rebuilding the array ("do not Create, but Rebuild"), but I only see the options to create RAID volume, delete RAID volume, Reset disks to non-RAID and Advanced settings (disabled).

       

      My question is: Is it still possible to recover the data (the latest backups are some 2-3 months old)? Will it make life easier for TestDisk and the likes if I create a RAID0 volume, then run the recovery software? Or is the only viable option to take the disk to a service specializing in data recovery? By looking at the disks with a disk viewer I can still see the data, including some Excel files and some Google Earth overlay structures, at a very quick glance. Will look in more detail once the dumps are copied (which should take some 6 more hours). Any other utility to try perhaps?

        • 1. Re: Reset disks to Non-RAID, again
          allan_intel

          Thanks for joining the Chipset community.

          If you had a RAID 0 volume and you have set as Non-RAID, I am afraid, data and structure are no longer available.

          You would need to re-install your computer from scratch.

           

          Allan.

          • 2. Re: Reset disks to Non-RAID, again
            Damiracle

            Hate to disappoint you Allan, but I nailed it. Here's how:

             

            1. Did a backup of both physical disks (booted into a Parted Magic LiveCD, used 'dd' command to copy each SSD into two separate files on an external USB drive) - to be on the safe side.
            2. Created RAID array in Intel MSM (Ctrl-I on boot) using the default parameters.
            3. Booted to LiveCD, ran TestDisk, choosing to work with /dev/mdl26 (the RAID drive) instead of individual disks (/dev/sda, /dev/sdb). The tool found three partitions (13 Gb recovery partition, 100 Mb Windows boot partition and the 200-something Gb data partition) - just the way it was originally. Wrote the partition table to disk.
            4. Booted from SSD - Sony Recovery started and suggested to return the PC to factory condition, losing all user files. Cancelled it.
            5. Back to LiveCD, ran TestDisk again - corrected disk geometry as suggested by the tool.
            6. Rebooted again. Got a message from Windows saying 'cannot load windows, use installation disc'. Did what the system told, went into 'repair boot', accepted the fixes and rebooted.
            7. Windows booted like nothing ever happened. All data intact. Told the boss to back up his files. Had a cup of coffee and picked my check. PROFIT!

             

            Thanks for your help anyway.

            • 3. Re: Reset disks to Non-RAID, again
              allan_intel

              Thanks for the feedback. I am glad your system is working now.

               

              Allan.