[svandamme]

WD CaviarŽ SE16
500 GB,
3 Gb/s,
16 MB Cache,
7200 RPM
Buffer To Host (Serial ATA) 3 Gb/s (Max)
Transfer Rate (Buffer To Disk) 972 Mbits/s (Max) (1 Mbit =125,000 bytes)
Operating Shock (Read) 65G, 2 ms
Non-operating Shock 350G, 2 ms







WD RE2
500 GB,
1.2 million hours MTBF,
16 MB Cache,
7200 RPM
Average Latency 4.20 ms (nominal)
Start/Stop Cycles 50,000 minimum
Buffer To Host (Serial ATA) 3 Gb/s (Max)
Transfer Rate (Buffer To Disk) 85 MB/s (Sustained) (MB=1000×1024 (1,024,000) bytes)
Operating Shock (Read) 65G, 2 ms
Non-operating Shock 250G, 2 ms

notice how these are both WDC,listed as the high performance model in their class
SCSI = Enterprise class, SATA ain't

notice how they do not list MTBF for SATA

technically the SATA disk 2 buffer speed is higher, but i suspect that's just a peak number, and it probably can only sustain a lower amount then the SCSI disk does, and the SCSI disk in turns probably can peak higher...