C H A N N E L P A T H A C T I V I T Y

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PAGE

1

 

 

OS/390

SYSTEM ID IPO4

 

START 11/19/1998-10.30.00

INTERVAL 001.00.00

 

 

 

 

REL. 02.05.00

RPT VERSION 2.4.0

 

END

11/19/1998-11.30.00

CYCLE 1.000 SECONDS

 

 

IODF = 40

CR-DATE: 11/05/98

CR-TIME: 16.56.05 ACT: POR

 

MODE: LPAR

CPMF: AVAILABLE

 

 

CHANNEL PATH

UTILIZATION(%)

CHANNEL PATH

UTILIZATION(%)

CHANNEL PATH

UTILIZATION(%)

 

ID

TYPE

SHR

PARTITION

TOTAL

ID

TYPE

SHR

PARTITION

TOTAL

ID

TYPE

SHR

PARTITION

TOTAL

 

08

OS

Y

0.00

0.00

19

CN D

Y

0.16

 

3.43

85

IS

 

OFFLINE

 

 

0C

IS

 

OFFLINE

 

1A

CN D

Y

0.00

 

0.00

88

BY

 

 

0.00

 

0D

IS

 

OFFLINE

 

1B

CN D

Y

1.28

 

1.73

89

BL

 

OFFLINE

 

 

14

CN D

Y

8.28

8.62

80

CC

Y

0.52

 

1.48

8A

BL

 

0.00

0.00

 

15

CN D

Y

7.84

8.58

81

CN

Y

0.33

 

0.33

8C

BL

 

0.00

0.00

 

16

CN D

Y

8.84

9.22

82

CN D

Y

9.11

 

15.32

8D

BL

 

0.17

0.17

 

17

CN D

Y

8.28

8.51

83

CN D

Y

0.00

 

0.00

8E

BL

 

0.00

0.00

 

18

CN D

Y

0.00

0.00

84

IS

 

OFFLINE

 

 

90

BL

 

0.14

0.14

 

91

BL

 

OFFLINE

 

9B

CN D

Y

0.00

 

0.00

A3

CN D

Y

0.78

1.07

 

92

BL

 

0.00

0.00

9C

CN D

Y

9.15

 

15.25

A4

CN D

Y

1.29

1.58

 

94

BL

 

0.00

0.00

9D

CN

Y

0.01

 

0.01

A5

CN D

Y

36.18

36.93

 

95

BL

 

OFFLINE

 

9E

CN D

Y

11.73

 

12.30

A6

CN D

Y

21.39

21.50

 

96

BL

 

OFFLINE

 

9F

CN D

Y

35.47

 

35.74

A7

CN D

Y

1.32

1.71

 

98

CN D

Y

8.43

14.62

A0

CN

Y

0.00

 

0.00

B0

CN D

Y

0.00

0.00

 

99

CN D

Y

0.00

0.00

A1

CN D

Y

0.00

 

0.00

B1

CN D

Y

0.00

0.00

 

9A

CN D

Y

0.00

0.00

A2

CN D

Y

20.98

 

21.06

B2

CN D

Y

9.41

15.65

 

B3

CN D

Y

0.03

0.04

BB

CN D

Y

7.79

 

7.70

DC

IS

 

OFFLINE

 

 

B4

CN D

Y

11.62

11.63

BC

BL

 

OFFLINE

 

 

DD

IS

 

OFFLINE

 

 

B5

CN D

Y

36.13

36.74

BD

BL

 

OFFLINE

 

 

E0

CV

 

OFFLINE

 

 

B6

CN D

Y

0.00

0.00

BE

 

 

OFFLINE

 

 

E1

CV

 

0.02

0.02

 

B7

CN D

Y

0.80

1.05

D8

CN

Y

0.74

 

1.37

E2

CN D

Y

0.13

0.16

 

B8

CN D

Y

8.02

7.67

D9

CC

Y

0.36

 

0.41

E3

CN D

Y

0.00

0.00

 

B9

CN D

Y

0.78

1.11

DA

CN D

Y

21.31

 

21.70

E4

CN D

Y

10.27

10.32

 

BA

CN D

Y

7.68

7.89

DB

CN D

Y

0.00

 

0.00

E5

CN D

Y

2.33

5.74

 

E6

CN D

Y

0.15

0.20

 

 

 

 

 

 

 

 

 

 

 

 

E7

CN D

Y

0.79

1.14

 

 

 

 

 

 

 

 

 

 

 

 

E8

CN

Y

0.00

0.00

 

 

 

 

 

 

 

 

 

 

 

 

E9

CN D

Y

21.01

21.62

 

 

 

 

 

 

 

 

 

 

 

 

EA

CN D

Y

41.52

42.42

 

 

 

 

 

 

 

 

 

 

 

 

EB

CN D

Y

12.38

12.37

 

 

 

 

 

 

 

 

 

 

 

 

Figure 52. Channel Path Activity Report: LPAR Mode

11.2.2 Using RMF Reports

In a performance monitoring context, there are several heterogeneous considerations to be aware of before using RMF reporting. When doing a resource level analysis, what is the reason for using SMs for DB2, and why get reports at the Storage Group level? One may also search for more in-depth analysis tools than RMF. Moreover, as RMF produces a very large number of pages in its reports, spreadsheet automatic data capture and manipulation may be viewed with interest. Finally, the common approach of DB2 and storage specialists on the same performance study cases requires definition of how different tools report the same DB2 I/O.

11.2.2.1 Resource Level Analysis

Some RMF reports must be consolidated to get a global view of contention at the resource level.

For channel utilization, the relevant information is TOTAL UTILIZATION %, which consolidates any EMIF channel utilization on one CPC. When several CPCs share an LCU, pathing analysis must be extended to include all LPAR activities to this LCU over all CPCs.

Cache utilization reports consolidate all different LPAR activities for each LCU. So, to get the whole storage server view, a manual consolidation of LCUs is mandatory. For device activity, RMF data capture is done at the LCU level, so two levels of weighted consolidation are required: first, between all LPARs, to get the

132Storage Management with DB2 for OS/390

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Image 154
IBM 5655-DB2, 5695-DF1 manual Using RMF Reports, Resource Level Analysis

5695-DF1, 5655-DB2 specifications

IBM 5655-DB2 and 5695-DF1 are significant components within the IBM software ecosystem, predominantly focusing on data management and integration solutions. These offerings cater primarily to enterprise environments that require robust database management systems and associated frameworks to maintain and manipulate data efficiently.

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DataStage also supports real-time data integration, allowing businesses to keep their data synchronized across multiple platforms. Its parallel processing capabilities dedicatedly optimize performance, enabling organizations to handle vast datasets efficiently. It incorporates data quality tools that help in validating and cleansing data before it is used for decision-making processes.

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