Quick question about the WD Raptor hard drive..

[jere01]

I am looking into buying a WD Raptor hard drive and was looking at all the stats and two that I am confused about are the Buffer to Host and Buffer to Disk. I noticed that for the Raptor, one of these was 100 MB/s and the other was 150 MB/s. Now when I go to one of WD's 80 gig hard drives, I notice that these numbers are up in the 500-600Mb/s range... just wondering why the Raptor was so much lower and what this speed actually is.

Thanks!

 

[GoSharks]

1 MB (megabyte) = 8Mb (megabit)

the sata interface that the raptor uses allows for up to a 150 MB/s transfer rate.

 

[jere01]

Oh so the WD Raptor can do 150 Megabytes /s whereas the other Caviar drives can do 500 Megabits/s which is more like 60 Megabytes per second. That makes a bit more sense thanks

 

[Cadaver]

The SATA interface can handle up to 150 MB/s, but you'll never get that kind of data rate out of a single drive. You'd need a RAID 0 of two drives to get close.