Seagate ST9600104SS ユーザーズマニュアル

10

Savvio 10K.4 SAS Product Manual, Rev. E

This section provides detailed information concerning performance-related characteristics and features of Sav-
vio drives.

 

 

Drive capacity

600

450

GB (formatted, rounded off value)

Read/write data heads

6

6

Bytes per track

677,557

677,557

Bytes (average, rounded off values)

Bytes per surface

100,021

75,016

MB (unformatted, rounded off value)

Tracks per surface (total)

147,620

110,715

Tracks (user accessible)

Tracks per inch

240,000

180,000

TPI (average)

Peak bits per inch

1,430

1,430

kBPI

 

Areal density

343

257.4

Gb/in

2

Internal data rate

1.62

1.62

Gb/s (variable with zone)

Disc rotation speed

10K

10K

rpm

Avg rotational latency

3.0

3.0

ms

See Section 12.4.1, "SAS physical interface" on page 61  and  the  SAS Interface Manual (part number 
100293071) for additional timing details.

1.

Execution time measured from receipt of the Command to the Response.

,

Average

600GB

 

Typical

4

3

3.

Typical access times are measured under nominal conditions of temperature, voltage, and horizontal orientation as 
measured on a representative sample of drives.

,

4.

Access time = controller overhead + average seek time and applies to all data transfer commands.

 

Access to data = access time + latency time.

4.0

4.6

3.8

4.4

Single track

0.50

0.76

0.30

0.56

Full stroke

8.01

8.38

7.81

8.18

Average

450GB

 

Typical

3,4

4.0

4.6

3.8

4.4

Single track

0.50

0.76

0.30

0.56

Full stroke

7.96

8.51

7.76

8.31

2.

Assumes no errors and no sector has been relocated.