On Thu, Oct 04, 2001 at 11:41:56AM +0200, Gemes Tibor wrote: > Hello! > > Ok. My HPT370 RAID1 is running w/ the hpt binary driver right now. > It is far below the expected system performance. > > I'll get a new hdd to test whether or not is has the 10 sector > offset. Is it possible to do w/ user level tools, or just via > kernel hacking? You can see it by doing the following: dd if=/dev/hde of=/tmp/hde bs=1M count=4 dd if=/dev/hdf of=/tmp/hdf bs=1M count=4 skip=5120 that generates a file with the disk data of both disks (assuming they are hde and hdf); if you inspect the contents of that with, say, an hex editor, you should see that they are the same. The '5120' is the assumed "offset".. Greetings, Arjan van de Ven