Seagate 100516232 ユーザーズマニュアル

4

Constellation ES Serial ATA Product Manual, Rev. G

Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal 
power. For convenience, the phrases the drive and this drive are used throughout this manual to indicate the
following drive models:

 

The specifications listed in the following tables are for quick reference. For details on specification measure-
ment or definition, see the appropriate section of this manual.

ST32000644NS

ST31000524NS

ST3500514NS

Formatted (512 bytes/sector)*

2TB

1TB

500GB

Guaranteed sectors

3,907,029,168

1,953,525,168

976,773,168

Heads

8

4

2

Discs

4

2

1

Bytes per sector

512

Default sectors per track

63

Default read/write heads

16

Default cylinders

16,383

Recording density, KBPI (Kb/in max)

1421

Track density, KTPI (ktracks/in avg.)

240

Areal density, (Gb/in

2 

avg)

347

Spindle speed (RPM)

7200

Internal data transfer rate

 

(Mb/s max)

1300

Sustained data transfer rate OD

 

(MB/s max)

140

I/O data-transfer rate

 

(MB/s max)

300

ATA data-transfer modes supported

PIO modes 0–4

 

Multiword DMA modes 0–2

 

Ultra DMA modes 0–6

Cache buffer

64MB

32MB

Weight: (maximum)

710g (1.565 lb)

640g (1.411 lb)

610g (1.345 lb)

Average latency

4.16ms

Power-on to ready (sec max)

15

10

7

Standby to ready (sec max)

15

10

7