Table 1:

Specifications (Continued)

 

 

 

Drive specification

ST94811AB

 

 

Full-stroke seek (msec)

22 (typical); 26 (max)

 

 

Seek power (typical)

2.4 watts

 

 

Read/write power (typical)

2.4 watts

 

 

Idle, performance mode (typical)

2.5 watts

 

 

 

Standby mode

 

0.36 watts (typical)**

 

 

 

Sleep mode

 

0.36 watts (typical)**

 

 

Voltage tolerance (including noise)

5V ± 5%

 

 

Ambient temperature

5° to 55°C (operating)

 

 

–40° to 65°C (nonoperating)

 

 

Temperature gradient (°C per hour max)

20°C (operating)

 

 

30°C (nonoperating)

 

 

Relative humidity (noncondensing)

5% to 90% (operating)

 

 

5% to 95% (nonoperating)

 

 

Relative humidity gradient

30% per hour max

 

 

Wet bulb temperature (°C max)

33°C (operating)

 

 

40°C (nonoperating)

 

 

Altitude, operating

–192.12 m to 3,048 m (–650 ft to 10,000+ ft)

 

 

Altitude, nonoperating (below mean sea level, max)

–304.8 m to 12,192 m (–1,000 ft to 40,000+ ft)

 

 

Shock, operating (Gs max at 2 msec)

225

 

 

Shock, nonoperating (Gs max at 2 msec)

800

 

 

Shock, nonoperating (Gs max at 1 msec)

800

 

 

Shock, nonoperating (Gs max at 0.5 msec)

400

 

 

Vibration, operating (max displacement may apply below 10

1.0 Gs (0 to peak, 5–500 Hz)

hz)

 

 

 

 

Vibration, nonoperating (max displacement may apply below

5.0 Gs

22 hz)

 

(0 to peak, 5–500 Hz)

 

 

Drive acoustics, sound power (bels)

 

Idle*

 

2.3 (typical)

 

 

2.5 (max)

Performance seek

3.0 (typical)

 

 

3.2 (max)

 

 

Nonrecoverable read errors

1 per 1014 bits read

Mean time between failures (power-on hours)

500,000 hours at 25°C ambient temperature

 

 

8,760 Power On Hours/year at nominal power.

 

 

Max case temperature: 40°C

 

 

Load/Unload (U/UL) cycles

 

25°C, 50% relative humidity

300,000 software-controlled power on/off cycles

 

 

20,000 hard power on/off cycles

32°C, 80% relative humidity

100,000 software-controlled power on/off cycles

5°C, 80% relative humidity

20,000 hard power on/off cycles

5°C, 10% relative humidity

 

55°C, 16% relative humidity

 

 

 

 

Service life

 

5 years

 

 

 

Warranty

 

1 year

 

 

 

*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and power to operational levels.

**Typical notebooks will pull power to the drive when entering S3 and S4; while in the S3 and S4 states, drive sleep and drive standby modes will not contribute to battery power consumption.

4

Momentus Blade Server Product Manual, Rev. B

Page 9 Page 11
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Seagate ST94811AB manual Specifications
Page 9 Page 11

ST94811AB specifications

The Seagate ST94811AB is a highly regarded hard disk drive that has made its mark in the world of data storage solutions. With a capacity of 80 GB, this drive was designed to meet the growing demands for reliable and efficient data storage in both personal and professional settings.

One of the main features of the ST94811AB is its 2.5-inch form factor, which makes it ideal for use in laptops, portable devices, and compact desktop systems. This size allows for easy integration into various applications while maintaining a balance between portability and performance. The drive operates at 5400 RPM, providing a solid performance level that is adequate for a wide range of tasks, including data backup, file storage, and even light gaming.

In terms of connectivity, the Seagate ST94811AB utilizes the SATA interface, which is standard for modern hard drives. This interface supports high-speed data transfer rates, ensuring efficient and quick access to stored files. The SATA connection enhances the overall responsiveness of the drive, making it a suitable choice for users who prioritize speed and reliability.

When it comes to durability, this drive was built with robustness in mind. The ST94811AB features Seagate's proprietary technologies that aim to extend the lifespan of the drive while providing protection against data loss. This includes advanced error correction mechanisms and shock resistance, which are crucial for maintaining data integrity, especially in portable devices that may be subjected to bumps and vibrations.

Another significant characteristic of the ST94811AB is its low power consumption. This feature is particularly beneficial for laptop users, as it contributes to longer battery life without sacrificing performance. The drive's efficient design helps to reduce heat generation, which in turn enhances the longevity of both the drive and the device it's installed in.

Overall, the Seagate ST94811AB stands out as a reliable and efficient hard drive solution. Its blend of performance, durability, and energy efficiency makes it a sought-after choice among users looking for dependable data storage. Whether for everyday use or specific applications that require compact form factors, the ST94811AB delivers a balanced performance suitable for various data management needs.
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