User manual

- Hitachi hard disk drive specifications –
21
4.5.2.2 Single track seek time (without command overhead, including settling)
Common to all models and all seek modes
Function
Typical (ms)
Max (ms)
Read
0.8
1.5
Write
1.3
2.0
Table 10 Single Track Seek Time
Single track seek is measured as the average of one (1) single track seek from every track with a random head
switch in both directions (inward and outward).
4.5.2.3 Average latency
Rotational speed
Time for a revolution
(ms)
Average latency
(ms)
7200 RPM
8.3
4.17
Table 11 Latency Time
4.5.3 Drive ready time
Power on to ready
Typical (sec)
Maximum (sec)
1D model
8
20
2D model
10
20
Table 12 Drive ready time
Ready The condition in which the drive is able to perform a media access command (such as
read, write) immediately.
Power on This includes the time required for the internal self diagnostics.