If they did the performance boost would be obvious with benchmark testing. The maximum sustained data transfer rate (read or write) depends on how much data is stored on each "track" of data (1 revolution of the platter with the head not moving) and the speed that the platter is rotating. All of the speed increases in the last few years have been a result of the increased "bit-density" on the platters. I have seen one Seagate 1TB drive with suspiciously higher numbers than other drives, but I don't know if that is due to a denser platter, or maybe they are using 2 heads at a time.
Tom -----Original Message----- From: Steven M. Caesare [mailto:scaes...@caesare.com] Sent: Friday, September 18, 2009 9:09 AM To: NT System Admin Issues Subject: RE: Disk based backup What makes you think they don't today? -sc ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~