Seagate 6451 Computer Drive User Manual


 
Quick specification chart
The following table serves as a quick reference for the drives’ perform-
ance specifications. These and other specifications are discussed in
“Specifications” on page 5.
Drive specification
ST36450A ST36451A
Guaranteed capacity (Gbytes) (x10
9
bytes) 6.4 6.4
Guaranteed sectors 12,594,960 12,594,960
Bytes per sector 512 512
Sectors per track 63 63
Logical read/write heads 15 15
Logical cylinders 13,328 13,328
Physical cylinders 6,536 6,536
Physical read/write heads 10 10
Physical discs 5 5
Areal density (Mbits per square inch) 928.8 928.8
Data zones 19 19
Recording density (bits per inch) 138,011 138,011
Track density (tracks per inch) 6,730 6,730
Spindle speed (RPM) 5,397 5,397
Track-to-track seek time (msec typical) 2.0 2.0
Average read seek time (msec typical) 9.5 9.5
Average write seek time (msec typical) 10.0 10.0
Full-stroke seek time (msec typical) 20 20
Average latency (msec) 5.58 5.58
Internal data-transfer rate
(Mbits per sec max) 63 to 116 63 to 116
External transfer rate (Mbytes per sec max) 16.6 33.3
Cache buffer (Kbytes) 512 512
ECC on-the-fly (bits) 65 65
continued
Medalist Pro 6450/6451 Product Manual, Rev. B 3