Barracuda ATA II 100 Family Product Manual, Rev. A
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
ST330631A, ST320424A, ST315324A and the ST310216A.
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
.
1.2 Physical organization
Drive
Model
Guaranteed Mbytes
(1 Mbyte = 10
6
bytes)
Guaranteed
sectors
Bytes per
sector
ST330631A
30,606
59,777,640
512
ST320424A
20,404
39,851,760
512
ST315324A
15,303
29,888,820
512
ST310216A
10,202
19,925,880
512
CHS Mode
Cylinders
Read/Write heads
Sectors per track
ST330631A
16,383
16
63
ST320424A
16,383
16
63
ST315324A
16,383
16
63
ST310216A
16,383
16
63
Drive Model
Read/Write heads (GMR)
Number of discs
ST330631A
6
3
ST320424A
4
2
ST315324A
3
2
ST310216A
2
1
