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2 ST320014A Product Manual, Rev. D
Specification summary table
The specifications listed in this table are for quick reference. For details
on specification measurement or definition, see the appropriate section
of this manual.
Drive Specification ST320014A
Formatted Gbytes (×10
6
bytes) 20
Guaranteed sectors 39,102,336
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Physical read/write heads 1
Discs 1
Recording density BPI (bits/inch max) 543,000
Track density TPI (tracks/inch) 58,000
Areal density (Mbits/inch
2
max) 31,500
Spindle speed (RPM) 5,400
Internal data-transfer rate
(Mbits/sec max)
445
I/O data-transfer rate
(Mbytes/sec max)
100
ATA data-transfer modes
supported
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–5
Cache buffer (Mbytes) 2
Height (mm max) 19.99
Width (mm max) 101.9
Length (mm max) 147.0
Weight (typical) 455 grams (1.00 lb)
Average seek time (msec typical) 12.7
Track-to-track seek time (msec typical) 1.2 (read) 2.0 (write)
Read/write seek time (msec typical) 18.0 (read) 24.9 (write)
Full-stroke seek time (msec typical) 36.8 (read); 42.0(write)
Power-on to ready (sec max) 7 sec