data on disk gone after defrag

[shansen]

After doing a routine defrag today on a back up drive, I restarted my computer and when I went back to the disk management utility, that particular partition I just defraged was showing up as raw and no file table associated with it. So I rebooted a second time and Windows did an automated scan on that drive and proceeded to boot up. I went back into the disk management utility and now I have a NTFS formatted partition that is empty (300+ gigs of data gone). Anyone ever seen anything like this before? The hard drive I have is fairly new and it passed all the SMART tests.

 

[office politics]

i've never seen anything like that. I'd be concerned that the drive is going bad though.

check event viewer see if you can find out what the autochkdsk did.

I would download the disk diag software from the manufacturer's website and rn their tests on the drive.

Is the drive still under warranty?

 

[shansen]

It should be. The drive is not that old. Like under 6 months. I used diskgenius and it seemed to have recovered it.