12.3.1Inquiry data

Table 7 lists the Inquiry command data that the drive should return to the initiator per the format given in the SAS Interface Manual.

Table 7:

Constellation inquiry data

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bytes

Data (hex)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0-15

00

00

 

xx**

12

8B

00

PP

0A

53

45

41

47

41

54

45

20

Vendor ID

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16-31

[53

54

 

39

35

30

30

34

33

30

53

53]

20

20

20

20

20

Product ID

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

32-47

R#

R#

 

R#

R#

S#

S#

S#

S#

S#

S#

S#

S#

00

00

00

00

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

48-63

00

00

 

00

00

00

00

00

00

00

00

00

00

00

00

00

00

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

64-79

00

00

 

00

00

00

00

00

00

00

00

00

00

00

00

00

00

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

80-95

00

00

 

00

00

00

00

00

00

00

00

00

00

00

00

00

00

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

96-111

00

43

 

6F

70

79

72

69

67

68

74

20

28

63

29

20

32*

*Copyright

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

112-127

30*

30*

 

36*

20

53

65

61

67

61

74

65

20

41

6C

6C

20

notice

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

128-143

72

69

 

67

68

74

73

20

72

65

73

65

72

76

65

64

20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*Copyright year (changes with actual year).

**SCSI Revision support. See the appropriate SPC release documentation for definitions. PP 10 = Inquiry data for an Inquiry command received on Port A.

 

30 = Inquiry data for an Inquiry command received on Port B.

 

 

 

 

R#

Four ASCII digits representing the last four digits of the product firmware release number.

S#

Eight ASCII digits representing the eight digits of the product serial number.

 

[ ]

Bytes 16 through 26 reflect model of drive. The table above shows the hex values for Model ST9500430SS.

 

Refer to the values below for the values of bytes 16 through 26 of your particular model:

 

ST9500430SS

53

54

39

35

30

30

34

33

30

53

53

 

ST9500431SS

53

54

39

35

30

30

34

33

31

53

53

 

ST9500432SS

53

54

39

35

30

30

34

33

32

53

53

12.3.2Mode Sense data

The Mode Sense command provides a way for the drive to report its operating parameters to the initiator. The drive maintains four sets of mode parameters:

1.Default values

Default values are hard-coded in the drive firmware stored in flash E-PROM (nonvolatile memory) on the drive’s PCB. These default values can be changed only by downloading a complete set of new firmware into the flash E-PROM. An initiator can request and receive from the drive a list of default values and use those in a Mode Select command to set up new current and saved values, where the values are change- able.

2.Saved values

Saved values are stored on the drive’s media using a Mode Select command. Only parameter values that are allowed to be changed can be changed by this method. Parameters in the saved values list that are not changeable by the Mode Select command get their values from default values storage.

When power is applied to the drive, it takes saved values from the media and stores them as current val- ues in volatile memory. It is not possible to change the current values (or the saved values) with a Mode

52

Constellation SAS Product Manual, Rev. E

Page 60
Image 60
Seagate ST9500430SS, ST9500432SS, ST9500431SS manual Inquiry data, Constellation inquiry data, Mode Sense data