Physical Organization; Recording Technology - Seagate EE25.2 - Series 80 GB Hard Drive Product Manual

2.4

Physical organization

Model Read/write heads
ST980817AM 2
ST980818AM 2
ST980817SM 2
ST980818SM 2
ST960817AM 2
ST960818AM 2
ST960817SM 2
ST960818SM 2
ST940817AM 1
ST940818AM 1
ST940817SM 1
ST940818SM 1
ST930817AM 1
ST930818AM 1
ST930817SM 1
ST930818SM 1
2.5

Recording technology

Technology
Recording density BPI
Track density TPI
Areal density
Spindle speed
Internal data-transfer rate
I/O data transfer rate
Sustained throughput, typical (nominal operating conditions)
Interleave
Cache buffer
EE25.2 Series Product Manual, Rev. E
Number of disks
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Specification
840k bits/inch typical
150k tracks/inch typical
126 Gbits/inch
5,400 RPM (± 0.2%)
450 Mbits/sec max
PATA: 100 Mbytes/sec max
SATA: Up to 3 Gbits/sec max
45 Mbytes/sec maximum
1:1
8 Mbytes (8,192 kbytes)
2
typical
13