Formatted Capacity; Lba Mode; Default Logical Geometry - Seagate ST9120823AS - Momentus 7200.2 120 GB Hard Drive Product Manual

Table 1: Drive specifications
Drive specification
Load/Unload (L/UL) cycles
25°C, 50% relative humidity
32°C, 80% relative humidity
5°C, 80% relative humidity
5°C, 20% relative humidity
60°C, 20% relative humidity
Supports Hotplug operation per SATA II
specification
*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment
and formatting.
**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
ST9200420AS and ST9200420ASG
ST9160823AS and ST9160823ASG
ST9120823AS
ST9100821AS
ST980813AS and ST980813ASG
*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment
and formatting.
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 7200.2 SATA Product Manual, Rev. D
ST9200420ASG ST9160823AS
ST9200420AS ST9160823ASG
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
Formatted capacity* Guaranteed sectors
200 Gbytes 390,721,968
160 Gbytes 312,581,808
120 Gbytes 234,441,648
100 Gbytes 195,371,568
80 Gbytes 156,301,488
Sectors per track
63
ST9120823AS ST9100821AS
Bytes per sector
512
512
512
512
512
ST980813AS
ST980813ASG
5