HGST TRAVELSTAR 80GN 30GB ATA5 08K0910 User Manual
Product codes
08K0910
Travelstar 80GN Hard Disk Drive Specification
19
4.4.2.4 Average latency
4.4.2.5 Drive ready time
4.4.3 Operating modes
4.4.3.1 Description of operating modes
Table 8: Average latency
Rotational speed
(RPM)
Time for one
revolution (ms)
Average latency
(ms)
4200
14.3
7.1
Table 9: Drive ready time
Condition
Drive ready time (sec)
Typical
Max
Power on to Ready
3.0
9.5
Ready
The condition in which the drive is able to perform a media access command (for exam-
ple- read, write) immediately.
ple- read, write) immediately.
Power on to Ready
This includes the time required for the internal self diagnostics.
Table 10: Description of operating modes
Operating mode
Description
Spin-up
Start up time period from spindle stop or power down.
Seek
Seek operation mode
Write
Write operation mode
Read
Read operation mode
Performance Idle
The device is capable of responding immediately to idle media access requests. All
electronic components remain powered and the full frequency servo remains opera-
tional.
electronic components remain powered and the full frequency servo remains opera-
tional.
Active idle
The device is capable of responding immediately to media access requests. Some cir-
cuitry—including servo system and R/W electronics—is in power saving mode. The
head is parked near the mid-diameter the disk without servoing. A device in Active
idle mode may take longer to complete the execution of a command because it must
activate that circuitry.
cuitry—including servo system and R/W electronics—is in power saving mode. The
head is parked near the mid-diameter the disk without servoing. A device in Active
idle mode may take longer to complete the execution of a command because it must
activate that circuitry.
Low power idle
The head is unloaded onto the ramp position. The spindle motor is rotating at full
speed.
speed.