Seagate ST9146703SS ユーザーズマニュアル

10

Savvio 10K.3 SAS Product Manual, Rev. G

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

 

 

Drive capacity

300

146.8

Gbytes (formatted, rounded off value)

Read/write data heads

4

2

Bytes per track

656,985

656,985

Bytes (average, rounded off values)

Bytes per surface

74,915

74,915

Mbytes (unformatted, rounded off value)

Tracks per surface (total)

113,829

113,829

Tracks (user accessible)

Tracks per inch

190,000

190,000

TPI (average)

Peak bits per inch

1,458,000

1,458,000

BPI

 

Areal density

252

252

Gbit/in

2

Internal data rate

1578 - 850

1578 - 850

Mbits/sec (variable with zone)

Disc rotation speed

10k

10k

rpm

Avg rotational latency

3.0

3.0

msec

See Section 12.4.1, "SAS physical interface" on page 58  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

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.

4.2

4.6

4.0

4.4

Single track

Typical

3,4

0.4

0.7

0.4

0.7

Full stroke

Typical

3,4

7.68

8.15

7.48

7.95

2.

Assumes no errors and no sector has been relocated.

1,2