Power Consumption Efficiency; Reliability; Data Reliability; Table 16: Power Consumption Efficiency - Hitachi HTS548040M9AT00 Specifications

Watts (RMS typical)
Active Idle average
Low Power Idle average
4
Read average
Write average
5
Seek average
Standby
Sleep
6
Startup (max. peak)
Average from power on to ready
Footnotes:
1
The maximum fixed disk ripple is measured at the 5 volt input of the drive.
2
The disk drive shall not incur damage for an over voltage condition of +25% (maximum duration of
20 ms) on the 5 volt nominal supply.
3
The idle current is specified at an inner track.
4
The read/write current is specified based on three operations of 63 sector read/write per 100 ms.
5
The seek average current is specified based on three operations per 100 ms.
6
The worst case operating current includes motor surge.

6.2.1 Power consumption efficiency

Table 16: Power consumption efficiency

Power Consumption Efficiency
Capacity
80GB
60GB
40GB
30GB
20GB
Note: Power consumption efficiency is calculated as Power Consumption of Low Power Idle in Watts/Capacity
(GB).

6.3 Reliability

6.3.1 Data Reliability

• Probability of not recovering data is 1 in 10
• ECC implementation
On-the-fly correction performed as a part of read channel function recovers up to 20 symbols of error in one sector
(1 symbol is 8 bits).
All models
(Watts/GB)
0.011
0.014
0.021
0.028
0.043
Travelstar 5K80 Hard Disk Drive Specification
1.3
0.85
2.5
2.5
2.6
0.25
0.1
5.0
3.8
13
bits read
24