3TB drive missing

How to use TestDisk to recover lost partition
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Class
Posts: 1
Joined: 24 Feb 2019, 09:40

3TB drive missing

#1 Post by Class »

My external drive didn't show up, after I've attached. Windows gave an error "drive not accessible".
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Since test disk was helping me in past many time, immediately launched it. After several analysis, I don't know what happened to this drive. :(

Step 1 Selecting drive - here I already see a problem, this should be named just like the other, it's a TOSHIBA drive.
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Step 2 Detect GPT table - i believe the table should be INTEL, I rarely format GPT
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I did change here the analysis, when i go with GPT i will get MS Data partition to be found, also boot is identical, etc. buuuut files are missing when i list them, they are just not there. So I've did an analysis as intel also. Then it's did find a HFS...NTFS partition, the same as the MS Data. Deep analysis run for several hours when INTEL was selected, and found 2 FAT partition in the background. Same I've did for GPT (but terminated at 8% and 18h later, with that rate it would take the drive take 9+ days to complete) - side question, which was deep analysis so much faster when INTEL was selected?

Anyway back to topic, Step 3 - Analysis - Quick seach:
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What should I do now? I've checked, listed files are just fragments of what the drive should contain, it's barely 10GB from the almost full 3TB. :roll:

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cgrenier
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Re: 3TB drive missing

#2 Post by cgrenier »

Run "cmd" (Right click run as administrator) and "chkdsk /f p:". What is the output ?
If the disk become inaccessible during the fsck, you may have to clone it using ddrescue (cf https://www.cgsecurity.org/testdisk.pdf ) and try to access your files on the clone using testdisk.

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