Asus External Slim Combo Drive SCB-2424A-U User Manual page 12

Partial Constant Angular Velocity (P-CAV) technology Partial Constant Angular Velocity (P-CAV) technology
Partial Constant Angular Velocity (P-CAV) technology Partial Constant Angular Velocity (P-CAV) technology Partial Constant Angular Velocity (P-CAV) technology
The Partial Constant Angular Velocity (P-CAV) recording method is a
combination of the Constant Angular Velocity (CAV) and Constant Linear
Velocity (CLV) recording technologies. In CAV recording technology, the
drive maintains a consistent rotation speed which will result in a variable
transfer rate, while in CLV recording technology, the data transfer rate is
kept at a fixed level by changing the rotation speed.
P-CAV recording technology switches from CAV to CLV once the maximum
transfer rate is reached. Unlike Zone Constant Linear Velocity (Z-CLV)
recording, no links are produced in the P-CAV recording process, resulting
in a higher average transfer rate.
The following illustration shows the Partial Constant Angular Velocity
(P-CAV) recording technology.
1 2 1 2 1 2 1 2 1 2
Speed
32x
24x
16x
12x
10x
8x
4x
0x
Partial CAV
A S U S S C B - 2 4 2 4 A - U e x t e r n a l s l i m c o m b o d r i v e A S U S S C B - 2 4 2 4 A - U e x t e r n a l s l i m c o m b o d r i v e A S U S S C B - 2 4 2 4 A - U e x t e r n a l s l i m c o m b o d r i v e A S U S S C B - 2 4 2 4 A - U e x t e r n a l s l i m c o m b o d r i v e A S U S S C B - 2 4 2 4 A - U e x t e r n a l s l i m c o m b o d r i v e
Time