Recovering single partition on 4TB (GPT) external HDD
Posted: 06 Dec 2015, 08:25
Hello,
I was hoping I could get some guidance with recovering a partition from a 4TB external HDD (enclosure). My OS is Win7 and I'm fairly certain the drive was partitioned using GPT with an NTFS filesystem, but I'm not 100% sure. To the best of my knowledge, the drive only had a single partition--I was only using it to store media, but it's possible a reserved partition may have been created as well.
The problem started with me disconnecting the drive before it was safe to remove (foolishly) and afterwards the drive was showing up as RAW. I ran chkdsk /r first, which allowed me to see the correct drive name again, but could not access the drive. I manually set the permissions in the Security tab of the drive Properties, which let me access the drive but it was showing up as empty even though the usage was being shown as ~1.8TB.
After this I used testdisk 7.1-WIP (32b) to do a quick search--this found a single partition but with none of my old data. I did a deeper search, and this found many more partitions, most of which I think are corrupted. One note here is that for the deeper search I connected the drive directly to my internal SATA port to accelerate the search, and in doing so, Windows auto-chkdsk'ed the drive again as it was booting up. I'm not exactly sure what it did at this time...
I've attached the log here, it's quite long but most of it is lseek errors. I can't list the files the the Mac HFS partitions even though those seem most promising. I'm not sure why they're being listed as Mac HFS. The partitions I can list files for do not have anything I recognize.
Is there any chance to recover my data at this point or is this a lost cause? Thanks so much for your time in advance, I would appreciate any advice with my current situation.
I was hoping I could get some guidance with recovering a partition from a 4TB external HDD (enclosure). My OS is Win7 and I'm fairly certain the drive was partitioned using GPT with an NTFS filesystem, but I'm not 100% sure. To the best of my knowledge, the drive only had a single partition--I was only using it to store media, but it's possible a reserved partition may have been created as well.
The problem started with me disconnecting the drive before it was safe to remove (foolishly) and afterwards the drive was showing up as RAW. I ran chkdsk /r first, which allowed me to see the correct drive name again, but could not access the drive. I manually set the permissions in the Security tab of the drive Properties, which let me access the drive but it was showing up as empty even though the usage was being shown as ~1.8TB.
After this I used testdisk 7.1-WIP (32b) to do a quick search--this found a single partition but with none of my old data. I did a deeper search, and this found many more partitions, most of which I think are corrupted. One note here is that for the deeper search I connected the drive directly to my internal SATA port to accelerate the search, and in doing so, Windows auto-chkdsk'ed the drive again as it was booting up. I'm not exactly sure what it did at this time...
I've attached the log here, it's quite long but most of it is lseek errors. I can't list the files the the Mac HFS partitions even though those seem most promising. I'm not sure why they're being listed as Mac HFS. The partitions I can list files for do not have anything I recognize.
Is there any chance to recover my data at this point or is this a lost cause? Thanks so much for your time in advance, I would appreciate any advice with my current situation.