Hitachi IC25N040ATCS04-0 Specifications - Page 29

Single track seek time without command overhead, including settling, 4.2.4 Average latency, 4.

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4.4.2.3 Single track seek time (without command overhead, including settling) Command Type Read Write Typical (ms) 2.5 3.0 Maximum (ms) 4.0 4.5 Figure 11. Single track seek time Single track seek is measured as the average of one (1) single track seek from every track in both directions (inward and outward). 4.4.2.4 Average latency Model 60-GB model All other models Figure 12. Latency time Rotational Speed (RPM) 5400 4200 Time for one revolution (ms) 11.1 14.3 Average Latency (ms) 5.5 7.1 4.4.2.5 Drive ready time Condition Power On To Ready Power On To Ready Figure 13. Drive ready time Model 60-GB model All other models Typical (sec) 5.0 3.0 Max. (sec) 9.5 9.5 Ready The condition in which the drive is able to perform a media access command (for example-read, write) immediately. Power On To Ready This includes the time required for the internal self diagnostics. Hitachi Travelstar 60GH & 40GN hard disk drive specifications 16

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4.4.2.3 Single track seek time (without command overhead, including settling)
4.5
3.0
Write
4.0
2.5
Read
Maximum (ms)
Typical (ms)
Command
Type
Figure 11. Single track seek time
Single track seek is measured as the average of one (1) single track seek from every track in both
directions (inward and outward).
4.4.2.4 Average latency
7.1
14.3
4200
All other models
5.5
11.1
5400
60-GB model
Average Latency
(ms)
Time for one revolution
(ms)
Rotational Speed
(RPM)
Model
Figure 12. Latency time
4.4.2.5 Drive ready time
9.5
3.0
All other models
Power On To Ready
9.5
5.0
60-GB model
Power On To Ready
Max. (sec)
Typical (sec)
Model
Condition
Figure 13. Drive ready time
This includes the time required for the internal self diagnostics.
Power On To Ready
The condition in which the drive is able to perform a media access command
(for example—read, write) immediately.
Ready
Hitachi Travelstar 60GH & 40GN hard disk drive specifications
16