4.3.7 Operating modes
The actuator is unloaded and spindle motor is
stopped. Only a soft reset or hard reset can change
the mode to standby.
Sleep
The actuator is unloaded and spindle motor is
stopped. Commands can be received immediately.
Standby
The spindle motor and servo system are working
normally. Commands can be received and processed
immediately.
Idle
Spindle rotation @7,200 RPM with heads unloaded
Unload Idle
Spindle rotation @4,500 RPM with heads unloaded
Low RPM Idle
Read operation mode
Read
Write operation mode
Write
Seek operation mode
Seek
Start up time period from spindle stop or power down
Spin-up
Description
Operating mode
Figure 14. Operating mode
s
Note: Upon power down or spindle stop a head locking mechanism will secure the heads in the
OD parking position.
4.3.8 Mode transition times
Mode transition times are shown below.
4.8 seconds
(3 Disks, typical)
4500–7200
Idle
Low RPM Idle
1.1 (typical)
7,200
Idle
Unload Idle
Immediately
0
Standby
Sleep
Immediately
0
Sleep
Standby
Immediately
7200–0
Standby
Idle
31 (max.)
0–7200
(3 disks) 11 seconds (typical)
Idle
Standby
Transition time (typical)
(seconds)
RPM
To
From
Note: The actual spin down time will exist, however the command will be processed immediately.
Figure 15. Mode transition times
Deskstar 60 GXP Hard disk drive specification
15
Содержание IC35L020 - Deskstar 20 GB Hard Drive
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