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4 ST320014A Product Manual, Rev. D
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
ST320014A.
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.
1.2 Physical organization
1.3 Recording and interface technology
Drive Model Formatted Gbytes Guaranteed
sectors
Bytes per
sector
ST320014A 20 39,102,336 512
CHS Mode Cylinders Read/Write heads Sectors per track
ST320014A 16,383 16 63
Drive Model Read/Write heads (GMR) Number of discs
ST320014A 1 1
Interface ATA
Recording method 96/102 GPRML
Recording density BPI (bits/inch) 543,000
Track density TPI (tracks/inch) 58,000
Areal density (Mbits/inch
2
max) 31,500
Spindle speed (RPM) (± 0.2%) 5,400
Internal data-transfer rate
(Mbits/sec max)
445
I/O data-transfer rate
(Mbytes/sec max)
16.6 (PIO mode 4)
100 (Ultra DMA mode 5)