Device Overview
Active Idle: | The head is in a position of extreme inner in disk |
| medium. (VCM Lock) |
Low Power Idle: | The head is unloaded from disk. |
| The spindle motor rotates. |
Standby: | The spindle motor stops. |
In APM
Table 1.7 Advanced Power Management
APM Mode | Active Idle | Low Power Idle | Standby | |
(VCM Lock) | (Unload) | (Spin Off) | ||
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15 min. | N/A | |||
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N/A | ||||
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When the maximum time that the HDD is waiting for commands has been exceeded:
Remark:
The default values of these settings are reflected in the WORD 91 values of the IDENTIFY DEVICE command. Also, the APM mode is initialized to
The above mentioned is time until shifting to each power mode based on point that the drive becomes a command waiting state.