Originally Posted by sengsational
Muse, We all work these drives pretty hard, don't we? I wanted to note that if your drive reverted to PIO it may actually be a tap on the shoulder that your drive is not as happy as it could be. Let me just say it...mine reverted twice over a period of months, then it was a goner: I lost every byte. I would recommend Spinrite from grc.com. It's the best thing out there at this job, and if you use it right, it will really tell you _before_ it's too late!
Dale, in my case it appears that the failure I experienced (losing all the data on my 160 GB IDE drive) was due to my having removed my Promise IDE controller card and moving the IDE devices in the box to the mainboard IDE controllers. The Promise card evidently supported 48-bit LBA in its driver and the mainboard IDE controller did not without the proper setup in Windows 2000. Windows 2000 SP4 (actually SP3) does support 48-bit LBA but only
after having added a registry key! It seems to me a glaring omission on the part of Microsoft. They could have either:
1. Automatically added the key on installation of SP3+
2. Popped up a dialog giving the user the choice of doing so, assuming there's a reason to not do so (the only reason I can think of for not implementing (1.) above.
It seems virtually criminal to me that I had to find out about all this only in the wake of losing all my data on that 160 GB drive. Lucky for me, I'm not aware of having lost important data (I was backed up), but most people who suffered a similar data loss, I'm certain, were not so lucky.
By some miracle, I did not lose the data on my 200 GB IDE drive. I guess its data totalled something under 137 GB, but probably not by much. Had I lost that data, I'd be a LOT
more unhappy about all this.
But the question remains: Why did my 160 GB drive revert to PIO Mode in the wake of all this? I suppose it was that fact of the partition tables being overwritten. However, you could be right that it's a possible sign of impending drive failure. I will not be trusting this drive any time soon (not that I trust any HD, but I do trust some more than others