Seagate Barracuda ST3300631A User Manual download pdf (Page 16)

Barracuda 7200.8 PATA Product Manual, Rev. F

2.2 Formatted capacity

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

2.4 Recording and interface technology

Model

Formatted

capacity

Guaranteed

sectors Bytes per sector

ST3400832A 400 Gbytes 781,422,768 512

ST3400632A 400 Gbytes 781,422,768 512

ST3300831A 300 Gbytes 586,072,368 512

ST3300631A 300 Gbytes 586,072,368 512

ST3250823A 250 Gbytes 488,397,168 512

ST3250623A 250 Gbytes 488,397,168 512

ST3200826A 200 Gbytes 390,721,968 512

Cylinders Read/write heads Sectors per track

16,383 16 63

Interface ATA

Recording method 16/17 EPRML

Recording density BPI (bits/inch max) 728,000

Track density TPI (tracks/inch avg) 120,000

Areal density (Mbits/inch

avg) 91,560

Spindle speed (RPM) (± 0.2%) 7,200

Internal data-transfer rate (Mbytes/sec max) 95

Sustained data transfer rate OD (Mbytes/sec max) 65.0

I/O data-transfer rate (Mbytes/sec max) 100 (Ultra DMA mode 5)

Interleave 1:1

Cache buffer

ST3400832A, ST3300831A, ST3250823A and ST3200826A 8 Mbytes (8,192 kbytes)

ST3400632A, ST3300631A, and ST3250623A 16 Mbytes (16,384 kbytes)

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 47 48

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Seagate Barracuda ST3300631A User Manual Page 16