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troubleshooting Question

Recover data from corrupt partition

Avatar of charles_dilger
charles_dilgerFlag for United States of America asked on
SoftwareSystem UtilitiesDisaster Recovery
4 Comments1 Solution616 ViewsLast Modified:
I have a Promise DS4600 external raid enclosure. The box is loaded with 4 2TB drives configured RAID 5 for about 6TB of useable space.

Recently windows locked up accessing the drive insisted on running scan disc at start up a few times then the drive type changed to RAW. The drives seam to be working fine so is suspected windows "fixed" the file system wrong and it's now not properly recgonised.

I search arround for a few solutions and decided to try a solution posted here testdisk it seamed to work and discovered an NTFS partition. Great! It asked to write the partition info to the disc (i shuddered thinking I'd rather just read off the data than write to the partition but...) I accepted. It wront the new partition info I restarted the disc and now i'm worse than before.

Instead of a 6000GB RAW partition I now hav a 2048GB RAW partition with 129 MB unallocated space in front of it and 3540.78 GB after it. I considered using testdisk's option to delete all data in the partition table but i'm a little out of my league and don't want to mis-step and continue making things worse.

For those who are goint to ask I don't remeber all the drive geometry details from before th data loss. I think it was configued in windows as a basic GPT disk with a single NTFS partition completly filling the drive. It's possible it was a MBR disc but I think I had to go GPT because of the partition size. It's also possible it was exFAT not NTFS but I'm fairly sure it was NTFS.

Please help me recover the data without destroying things more.
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