Table 8 Latency Time; Table 9 Drive Ready Time - Hitachi CinemaStar P7K500 Specifications

4.5.2.4
Average latency
Rotational speed
7200 RPM

Table 8 Latency Time

4.5.3 Drive ready time
Power on to ready
1D model
2D model

Table 9 Drive ready time

Ready
Power on
Note: Max Power On to ready time is the maximum time period that Device 0 waits for Device 1 to assert
PDIAG–.
4.5.4 Operating modes
4.5.4.1
Operating mode descriptions
Operating mode
Spin-up Start up time period from spindle stop or power down
Seek Seek operation mode
Write Write operation mode
Read Read operation mode
Unload Idle Spindle rotation at 7200 RPM with heads unloaded
Idle Spindle motor and servo system are working normally. Commands can be
received and processed immediately
Standby Actuator is unloaded and spindle motor is stopped. Commands can be received
immediately
Sleep Actuator is unloaded and spindle motor is stopped. Only soft reset or hard reset
can change the mode to standby
Note: Upon power down or spindle stop a head locking mechanism will secure the heads in the OD parking
position.
HITACHI Deskstar & CinemaStar P7K500 Hard Disk Drive specification (Rev 1.1)
Time for a revolution
(ms)
8.3
Typical (sec)
8
10
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.
Description
12
Average latency
(ms)
4.17
Maximum (sec)
20
20