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I recently plugged in three WD black 1TB HDD that had not been connected to a computer for about 12 months.
All of them showed high usage (800GB or so), but two of the three mounted only an empty directory.
The third drive showed a partial file system, and when I clicked on a music file or picture they said bad file format.
Thankfully I had 90% of the data on my live machine, and that machine is now backed up to a ZFS box. But I thought I had 4+ copies of the data, not 2..
What sort of error or corruption could have caused this?
All of them showed high usage (800GB or so), but two of the three mounted only an empty directory.
The third drive showed a partial file system, and when I clicked on a music file or picture they said bad file format.
Thankfully I had 90% of the data on my live machine, and that machine is now backed up to a ZFS box. But I thought I had 4+ copies of the data, not 2..
What sort of error or corruption could have caused this?