Hitachi HUS154530VLF400 User Manual

Hitachi Ultrastar 15K450 (FC-AL) Hard Disk Drive Specification

10   

Note:  Values shown are nominal.  Actual values will vary based on manufacturing optimization. Mode Page 03 (Format 
Device Parameters),  page 180 and Mode Page 0C (Notch Parameters),  page 188 provide methods to determine actual 
medium format and zone parameters for specific drives.

Drive performance is characterized by the following parameters:

•Command overhead

•Mechanical head positioning

-   Seek time

-   Latency

•Data transfer speed

•Buffering operation (read ahead/write cache)

Note:   All the above parameters contribute to drive performance. There are other parameters that contribute to the perfor-
mance of the actual system. This specification tries to define the bare drive characteristics, not system throughput, which 
depends on the system and the application.

0

1188

5800

0

5799

1

1170

13300

5800

19099

2

1147

6400

19100

25499

3

1134

3000

25500

28499

4

1125

1200

28500

29699

5

1080

13800

29700

43499

6

1041

800

43500

44299

7

1035

1800

44300

46099

8

1026

1900

46100

47999

9

1012

2700

48000

50699

10

1002

600

50700

51299

11

990

3100

51300

54399

12

972

2200

54400

56599

13

945

4600

56600

61199

14

918

2600

61200

63799

15

900

3300

63800

67099

16

877

2500

67100

69599

17

864

200

69600

69799