Seagate ST380215ACE ユーザーズマニュアル
6
DB35.3 Series SATA/PATA Product Manual, Rev. F
2.1.1
Formatted capacity
*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environ-
ment and formatting.
ment and formatting.
2.1.1.1
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 4.4, "Identify Device command" (words 60-61 and 100-103) for additional information about 48-bit
addressing support of drives with capacities over 137 Gbytes.
addressing support of drives with capacities over 137 Gbytes.
2.1.2
Default logical geometry
2.1.3
Recording and interface technology
Model
Formatted
capacity*
Guaranteed
sectors
Bytes per sector
ST3160215SCE, ST3160215ACE
160 Gbytes
312,581,808
512
ST380215SCE, ST380215ACE
80 Gbytes
156,301,488
512
Cylinders
Read/write heads
Sectors per track
16,383
16
63
160GB
80GB
Interface
Serial ATA and Parallel ATA
Recording method
Perpendicular
Recording density, KBPI (kbits/inch max)
824
Track density, KTPI (ktracks/inch avg)
140
Areal density (Gbits/inch
2
avg)
116.2
Spindle speed (RPM) (± 0.2%)
7,200
Internal data transfer rate (Mbits/sec max)
930
Sustained data transfer rate (Mbytes/sec max)
78
I/O data-transfer rate (Mbytes/sec max)
SATA - 300
PATA - 100 (Ultra DMA mode 5)