I have a Maxtor OneTouch 300GB external HD (USB) which is behaving very erratically.
First of all I'm not able to copy large files to it (and I think from it too).
Large files seem to be 4GB and more in this case.
Whenever I try to copy such a large file to that disk, I get the error message
"Cannot copy <filename>: the parameter is incorrect"
Second problem is that files get regularly corrupted on that disk.
This weekend I created an image of the windows partition on my laptop with Acronis True Image.
The image was written to another partition on that same disk as I know writing directly to the Maxtor Disk (over the network)
is not a good idea.
After the image was created, I verified it with Acronis True Image and everything was OK.
Then I moved the image to the Maxtor disk (mounted drive on my laptop) without problems
(BTW, I made a spanned image of 2GB parts because of the problem with large files mentioned earlier)
Yesterday I wanted to restore the image, but Acronis True Image told me the image was corrupt.
Another annoyance is that the disk is not always detected at boot time.
This means no drive letter is assigned to it and thus the disk is not shared on the network
and thus all backups fail because the drive is not available
Just switching the disk off and on again makes the disk re-appear.
I already googled for this, but didn't find any info to help me further.