HHC02280I 90 00000000 00000000 00000000 00000000 |................|

HHC02280I A0 00000000 00000000 00000000 00000000 |................|

HHC02280I B0 00000000 00000000 00000000 00000000 |................|

HHC02280I C0 00000000 00000000 00000000 00000000 |................|

HHC02280I D0 00000000 00000000 00000000 00000000 |................|

HHC02280I E0 80000002 00001E00 01408048 48480200 |......... ......|

HHC02280I F0 00808048 00000000 00000000 00000000 |................|

HHC02280I 0:0148 SNSS 00 00481F00 00000000 00000000 00000000

HHC02280I 10 00000000 00000000 00000000 00000000

HHC02280I 20 00000000 00000140

Figure 239: QD command

8.126.5 Explanations

The Sense ID (SNSID) is describing the type and the model number of the subsystem and logical volume
of the channel and has the following format:

Bytes

Description

0

---

1-2

Subsystem Type

3

Subsystem Model and Architecture

4-5

Device Type

6

Device Model

7

Reserved

8-11

Command Interface Word (CIW) for Read Configuration Data

12-15

Command Interface Word (CIW) for Set-Interface-Identifier

16-19

Command Interface Word (CIW) for Read-Node-Identifier

Table 21: Sense ID

The Read Device Characteristics (RDC) defines the characteristics of the logical volume. The format is
the following:

Bytes

Description

0-1

Subsystem type

2

Subsystem model number and architecture

3-4

Device type

5

Device model

6-9

Subsystem and device facilities

10

Device class code

11

Device type code

12-13

Number of primary cylinders

14-15

Tracks per cylinder

16

Number of sectors

17-19

Track length

20-21

Length of HA and R0

Bytes

Description

22

Track capacity calculation formula

23-27

Track capacity calculation factors F1 through F5

28-29

First alternate cylinder address

30-31

Number of alternate tracks

32-33

First diagnostic cylinder address

34-35

Number of diagnostic tracks

36-37

First device support cylinder address

38-39

number of device support tracks

40

MDR record ID

41

OBR record ID

42

Control unit type code

43

Read trackset parameter length

44-45

Maximum record zero length

46

Reserved

47

Track set size

48

Track capacity calculation factor F6

49-50

RPS sector calculation factors

51-53

Reserved

54

Device and control unit features

55

Reserved

56

Real control unit type code

57

Real device type code

58-63

Reserved

Table 22: Read Device Characteristics

The Read Configuration Data (RCD) contains configuration data. It shows how the internal disk
subsystem is configured. The RCD has the following format:

Bytes

Name

Description

000-031

NED1

Volume NED (logical volume within the subsystem)

032-063

NED2

NED for the RAID array

064-095

NED3

NED for the logical subsystem

096-127

NED4

Token NED (establishes a relationship among all configu-
ration data records in a control unit in the subsystem)

128-223

Reserved

224-255

QNEQ

General NEQ (describes paths and addresses)

Table 23: Read Configuration Data

Legend:

NED Node Element Descriptor

NEQ Node Element Qualifier

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