Mechanical Positioning; Table 6 Single Track Seek Time; Table 7 Latency Time; Table 8 Drive Ready Time - Hitachi HDS723020BLA642 Specifications

4.5.2

Mechanical positioning

4.5.2.1
Single track seek time (without command overhead, including settling)
Common to all models and all seek modes
Function
Read
Write

Table 6 Single Track Seek Time

4.5.2.2
Average latency
Rotational speed
7200 RPM

Table 7 Latency Time

4.5.3 Drive ready time
Power on to ready
3 Disk model

Table 8 Drive ready time

Ready
Power on
Typical (ms)
0.5
0.6
Time for a revolution
(ms)
8.3
Typical (sec)
14
The condition in which the drive is able to perform a media access command (such as
read, write) immediately.
This includes the time required for the internal self diagnostics.
Max (ms)
0.7
0.8
Average latency
(ms)
4.16
Maximum (sec)
20
22