Barracuda ATA III Family Product Manual, Rev. B
5
1.0 Drive specifications
Unless otherwise noted, all specifications are measured under ambient
conditions, at 25°C, and nominal power. For convenience, the phrases
the drive
and
this drive
are used throughout this manual to indicate the
ST340824A, ST330620A, ST320414A, ST315310A and the
ST310215A.
1.1 Formatted capacity
1.1.1 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
.
Drive Model
Formatted Gbytes
Guaranteed
sectors
Bytes per
sector
ST340824A
40.0
78,165,360
512
ST330620A
30.0
58,633,344
512
ST320414A
20.0
39,102,336
512
ST315310A
15.3
29,888,820
512
ST310215A
10.2
19,925,880
512
CHS Mode
Cylinders
Read/Write
heads
Sectors per
track
ST340824A
16,383
16
63
ST330620A
16,383
16
63
ST320414A
16,383
16
63
ST315310A
16,383
16
63
ST310215A
16,383
16
63
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