Product manual

U Series 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
ST380020A, ST360010A, ST340810A and the ST320410A.
1.1 Formatted capacity
1.1.1 Default logical geometry
LBA Mode
When addressing drive in LBA mode, all blocks (sectors) are consecu-
tively 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
ST380020A 80 156,301,488 512
ST360020A 60 117,231,408 512
ST340810A 40 78,165,360 512
ST320410A 20 39,102,336 512
CHS Mode Cylinders Read/Write heads Sectors per track
ST380020A 16,383 16 63
ST360020A 16,383 16 63
ST340810A 16,383 16 63
ST320410A 16,383 16 63