Seagate ST4000DM001 ユーザーズマニュアル
Desktop HDD SATA Product Manual, Rev. A
13
Drive Specifications
2.2
Formatted capacity
*One GB equals one billion bytes and 1TB equals one trillion 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.
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 137GB.
addressing support of drives with capacities over 137GB.
2.3
Default logical geometry
• Cylinders: 16,383
• Read/write heads: 16
• Sectors per track: 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.
n is the number of guaranteed sectors as defined above.
2.4
Recording and interface technology
Model
Formatted
capacity*
capacity*
Guaranteed
sectors
sectors
Bytes per sector
ST5000DM000
5000GB
9,767,541,168
4k
ST4000DM001
4000GB
7,814,037,168
Interface
SATA
Recording method
TGMR
Recording density
1807kFCI
Track density (ktracks/inch avg)
4TB
340
5TB
455
Areal density (Gb/in
2
)
4TB
625
5TB
826
Internal data transfer rate (Mb/s max)
1813
Maximum sustained data transfer rate, OD read (MB/s) 160
Average data rate, read/write (MB/s)
146
I/O data-transfer rate (MB/s max)
600