Hitachi HDS721050CLA362 - Read (Quiet Seek Mode); Drive Ready Time

HITACHI Deskstar & CinemaStar 7K1000.B & Deskstar E7K1000 Hard Disk Drive specification
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4.5.2.3 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).
4.5.2.4 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
3D model
14
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.
Note: Max Power On to ready time is the maximum time period that Device 0 waits for Device 1 to assert PDIAG–.