My OS X installation wouldn't turn on, and Disk Utility said something about needing to backup as many files as possible, then reformatting. So I backed up my data and reinstalled in a new drive, and used the old as a drive for non-essential data. A week or so later, Disk Utility shows the following issue: Incorrect number of extended attributes It should be X instead of Y I've never had so many issues within such a short period of time so I'm buying a new disk. I did some reading on extended attributes and it afaik it is a filesystem/software issue and not a hardware issue. But what exactly could cause an incorrect number of extended attributes?