Table 1:

Drive specifications

 

 

 

 

 

 

 

 

 

 

Drive specification

ST9120821AS

ST9100824AS

ST98823AS

ST96812AS

ST94813AS

ST93811AS

 

 

 

 

 

 

 

Load/Unload (U/UL) cycles

 

 

 

 

 

 

25°C, 50% relative humidity

600,000 software-controlled power on/off cycles

 

 

 

32°C, 80% relative humidity

20,000 hard power on/off cycles

 

 

 

 

 

 

 

 

 

5°C, 80% relative humidity

600,000 software-controlled power on/off cycles

 

 

 

5°C, 10% relative humidity

20,000 hard power on/off cycles

 

 

 

55°C, 16% relative humidity

 

 

 

 

 

 

 

 

 

 

Supports Hotplug operation per SATA

Yes (requires COMPRESET from host after a hotplug event)

 

 

II specification

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*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.

2.2Formatted capacity

Model

Formatted capacity

Guaranteed sectors

Bytes per sector

 

 

 

 

ST9120821AS

120 Gbytes

234,441,648

512

 

 

 

 

ST9100824AS

100 Gbytes

195,371,568

512

 

 

 

 

ST98823AS

80 Gbytes

156,301,488

512

 

 

 

 

ST96812AS

60 Gbytes

117,210,240

512

 

 

 

 

ST94813AS

40 Gbytes

78,140,160

512

 

 

 

 

ST93811AS

30 Gbytes

58,605,120

512

 

 

 

 

2.2.1LBA mode

When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,where n is the number of guaranteed sectors as defined above.

See Section 4.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48- bit addressing support of drives with capacities over 137 Gbytes.

2.3Default logical geometry

Cylinders

Read/write heads

Sectors per track

 

 

 

16,383

16

63

 

 

 

LBA mode

When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,where n is the number of guaranteed sectors as defined above.

Momentus 5400.2 SATA Product Manual, Rev. C

5

Page 11
Image 11
Seagate ST9100824AS, ST98823AS, ST96812AS, ST94813AS, ST93811AS manual Formatted capacity, Default logical geometry, LBA mode