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10 DB35 Series 7200.2 Product Manual, Rev. C
2.2 Formatted capacity
*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment
and formatting.
2.2.1 LBA mode
When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,
where n is the number of guaranteed sectors as defined above.
See Section 4.1.2, "Identify Device command" (words 60-61 and 100-103) for additional information about 48-
bit addressing support of drives with capacities over 137 Gbytes.
2.3 Default logical geometry
LBA mode
When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,
where n is the number of guaranteed sectors as defined above.
2.4 Recording and interface technology
Model
Formatted
capacity*
Guaranteed
sectors Bytes per sector
ST3500841ACE 500 Gbytes 976,773,168 512
ST3400833ACE 400 Gbytes 781,422,768 512
ST3300822ACE 300 Gbytes 586,072,368 512
ST3250824ACE 250 Gbytes 488,397,168 512
ST3200827ACE 200 Gbytes 390,721,968 512
ST3160212ACE 160 Gbytes 312,581,808 512
ST3120213ACE 120 Gbytes 234,441,648 512
ST3802110ACE 80 Gbytes 156,301,488 512
Cylinders Read/write heads Sectors per track
16,383 16 63
Interface ATA
Recording method 16/17 EPRML
Recording density KBPI (kbits/inch max)
ST3500841ACE, ST3400833ACE, ST3300822ACE,
ST3250824ACE, ST3200827ACE
790.1
ST3160212ACE, ST3120213ACE, ST3802110ACE 840.0
Track density KTPI (ktracks/inch max)
ST3500841ACE, ST3400833ACE, ST3300822ACE,
ST3250824ACE, ST3200827ACE
124.5
ST3160212ACE, ST3120213ACE, ST3802110ACE 141.5
Areal density (Gbits/inch
2
max)