Seagate ST9250421ASG ユーザーズマニュアル
6
Momentus 7200.3 SATA Product Manual, Rev. C
2.3
Default logical geometry
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
2.5
Recording and interface technology
Cylinders
Read/write heads
Sectors per track
16,383
16
63
Drive model
Read/write heads
Number of discs
ST9320421AS and ST9320421ASG
4
2
ST9250421AS and ST9250421ASG
3
2
ST9200421AS and ST9200423ASG
3
2
ST9160411AS and ST9160411ASG
2
1
ST9120411AS and ST9120411ASG
2
1
ST980411AS and ST980411ASG
1
1
Interface
Serial ATA (SATA)
Recording method
Perpendicular
Recording density BPI (bits/inch max)
1,334k
Track density TPI (tracks/inch max)
190k
Areal density (Gbits/inch
2
max)
253
Spindle speed (RPM) (
± 0.2%)
7,200
Maximum Internal transfer rate (Gbits/sec)
1.1
I/O data-transfer rate (Gbits/sec max)
3.0
Interleave
1:1
Cache buffer
16 Mbytes (16,384 kbytes)