Product manual

2 U8 Family Product Manual, Rev. B
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 ST317221A ST313021A ST38410A ST34313A
Guaranteed Mbytes (
×
10
6
bytes) 17,245 13,022 8,622 4,327
Guaranteed sectors 33,683,328 25,434,228 16,841,664 8,452,080
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16 16 16 15
Default cylinders 16,383 16,383 16,383 8,944
Physical read/write heads 4321
Discs 2211
Recording density
BPI (bits/inch max) 349,374
Track density
TPI (tracks/inch) 18,700
Areal density
(Mbits/inch
2
max) 6,536
Spindle speed (RPM) 5,400
Internal data-transfer rate (Mbits/
sec max) 285.5
I/O data-transfer rate (Mbytes/
sec max) 66.6
ATA data-transfer modes
supported
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–4
Cache buffer (Kbytes) 512
256-Kbyte cache is optional for the ST34313A
Height (mm max) 26.1
Width (mm max) 102
Length (mm max) 147.0
Weight (typical) 590 grams (1.3 lb)
Track-to-track seek time
(msec typical) 1.5 (read) 2.1 (write)
Average seek time (msec typical) 8.9