Product manual

U8 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
ST317221A, ST313021A, ST38410A and the ST34313A.
1.1 Formatted capacity
1.1.1 Default logical geometry
LBA Mode
When addressing either drive 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
ST317221A 17,245 33,683,328 512
ST313021A 13,022 25,434,228 512
ST38410A 8,622 16,841,664 512
ST34313A 4,327 8,452,080 512
CHS Mode Cylinders Read/Write heads Sectors per track
ST317221A 16,383 16 63
ST313021A 16,383 16 63
ST38410A 16,383 16 63
ST34313A 8,944 15 63
Drive Model Read/Write heads (GMR) Number of discs
ST317221A 4 2
ST313021A 3 2
ST38410A 2 1
ST34313A 1 1