Formatted Capacity; Lba Mode; Default Logical Geometry - Seagate ST9100824AS - Momentus 5400.2 100 GB Hard Drive Product Manual

Table 1: Drive specifications
Drive specification
Load/Unload (U/UL) cycles
25°C, 50% relative humidity
32°C, 80% relative humidity
5°C, 80% relative humidity
5°C, 10% relative humidity
55°C, 16% relative humidity
Supports Hotplug operation per SATA
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.
2.2

Formatted capacity

Model Formatted capacity
ST9120821AS 120 Gbytes
ST9100824AS 100 Gbytes
ST98823AS 80 Gbytes
ST96812AS 60 Gbytes
ST94813AS 40 Gbytes
ST93811AS 30 Gbytes
2.2.1

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.
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.
2.3

Default logical geometry

Cylinders Read/write heads
16,383 16
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
ST9120821AS ST9100824AS ST98823AS
600,000 software-controlled power on/off cycles
20,000 hard power on/off cycles
600,000 software-controlled power on/off cycles
20,000 hard power on/off cycles
Yes (requires COMPRESET from host after a hotplug event)
Guaranteed sectors
234,441,648
195,371,568
156,301,488
117,210,240
78,140,160
58,605,120
Sectors per track
63
ST96812AS ST94813AS
Bytes per sector
512
512
512
512
512
512
ST93811AS
5