Seagate ST92503010A ユーザーズマニュアル
Momentus Thin Series SATA Product Manual, Rev. B
5
2.2
Formatted capacity
Model
Formatted capacity*
Guaranteed sectors
Bytes per sector
ST92503010AS
250 GB
488,397,168
512
ST91603010AS
160 GB
312,581,808
*One GB 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.
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 GB.
bit addressing support of drives with capacities over 137 GB.
2.3
Default 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.
where n is the number of guaranteed sectors as defined above.
2.4
Physical organization
Drive model
Read/write heads
Number of discs
ST92503010AS
2
1
ST91603010AS
2.5
Recording and interface technology
Interface
Serial ATA (SATA)
Recording method
Perpendicular
Recording density BPI (bits/in avg)
1434k
Track density TPI (tracks/in avg)
265k
Areal density (Gb/in
2
avg)
380
Spindle speed (RPM) (
± 0.2%)
5400
Maximum Internal transfer rate (Mb/s)
1175
I/O data-transfer rate (MB/s max)
300
Interleave
1:1
Cache buffer
8 MB (8,192 KB)