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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 ST33240A ST32531A
Guaranteed Mbytes (
×
10
6
bytes)
3,227 2,557
Guaranteed sectors 6,303,024 4,995,648
Bytes per sector 512 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 6,253 4,956
Physical read/write heads 8 6
Discs 4 3
Recording density (bits/inch max) 108,770
Track density (tracks/inch) 5,104
Areal density (Mbits/inch
2
)553
Spindle speed (RPM) 4,500
Internal data-transfer rate (Mbits/sec max) 88
I/O data-transfer rate (Mbytes/sec max) 16.6
ATA data-transfer modes supported PIO modes 0, 1, 3, 4;
Multiword DMA modes 0, 1, 2
Cache buffer (Kbytes) 128
Height (mm max) 26.2
Width (mm max) 102.1
Length (mm max) 146.9
Weight (grams typical) 567.5
Track-to-track seek time (msec typical) 2 (seek), 2.5 (read), 3.5 (write)
Average seek time (msec typical) 12 (seek), 12.5 (read), 14.5 (write)
Full-stroke seek time (msec typical) 23.5 (seek), 24 (read), 25 (write)
Average latency (msec) 6.67
Power-on to ready (sec typical) 9
Standby to ready (sec typical) 9
2 Medalist 3240 and Medalist 2531 Product Manual, Rev. A