C A C H E S U B S Y S T E M 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

 

 

SUBSYSTEM 3990-06

CU-ID 0395

SSID 0080

CDATE

11/19/1998

CTIME 10.30.01

CINT 00.59.59

 

TYPE-MODEL 3990-006

 

 

 

 

 

 

 

------------------------------------------------------------------------------------------------------------------------------------

CACHE SUBSYSTEM STATUS

----------------------------------------------------------------------------------------------------------------------------------

SUBSYSTEM STORAGE

NON-VOLATILE STORAGE

STATUS

 

CONFIGURED

1024.0M

CONFIGURED

64.0M

CACHING

- ACTIVE

AVAILABLE

1019.8M

PINNED

0.0

NON-VOLATILE STORAGE

- ACTIVE

PINNED

0.0

 

 

CACHE FAST WRITE

- ACTIVE

OFFLINE

0.0

 

 

IML DEVICE AVAILABLE

- YES

----------------------------------------------------------------------------------------------------------------------------------

CACHE SUBSYSTEM OVERVIEW

----------------------------------------------------------------------------------------------------------------------------------

TOTAL I/O

1652K

CACHE I/O

1650K

CACHE OFFLINE

0

 

 

 

 

 

 

 

 

 

TOTAL H/R

0.990

CACHE H/R

0.992

 

 

 

 

 

 

 

 

 

 

 

 

 

CACHE I/O

-------------

READ I/O REQUESTS-------------

----------------------WRITE I/O REQUESTS----------------------

 

%

REQUESTS

COUNT

RATE

HITS

 

RATE

H/R

COUNT

RATE

FAST

RATE

HITS

RATE

H/R

READ

NORMAL

856846

238.1

844376

 

234.6

0.985

238682

66.3

238682

66.3

238663

66.3

1.000

78.2

SEQUENTIAL

89018

24.7

88639

 

24.6

0.996

465283

129.3

465283

129.3

464130

129.0

0.998

16.1

CFW DATA

0

0.0

 

0

 

0.0

N/A

0

0.0

 

0

 

0.0

0

0.0

N/A

N/A

TOTAL

945864

262.8

933015

 

259.2

0.986

703965

195.6

703965

195.6

702793

195.3

0.998

57.3

------------------------

CACHE MISSES-----------------------

 

 

 

 

------------MISC------------

 

 

------NON-CACHE I/O-----

REQUESTS

READ

RATE

WRITE

RATE

TRACKS

RATE

 

 

 

COUNT

RATE

 

 

COUNT

RATE

 

 

 

 

 

 

 

 

 

 

DFW BYPASS

 

229

0.1

 

ICL

1027

0.3

NORMAL

12470

3.5

 

19

0.0

6685

1.9

 

CFW BYPASS

 

0

0.0

 

BYPASS

876

0.2

SEQUENTIAL

379

0.1

1153

0.3

20583

5.7

 

DFW INHIBIT

 

0

0.0

 

TOTAL

1903

0.5

CFW DATA

0

0.0

 

0

0.0

 

 

 

ASYNC (TRKS)

83191

23.1

 

 

 

 

TOTAL

14021

RATE

 

3.9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

----CKD STATISTICS---

---RECORD CACHING---

 

 

 

 

 

 

 

 

 

 

 

WRITE

378

READ MISSES

 

7218

 

 

 

 

 

 

 

 

 

 

 

WRITE HITS

377

WRITE PROM

 

64526

 

 

 

 

 

 

 

 

 

 

 

Figure 48. Cache Subsystem Activity Status and Overview Reports

 

 

C A C H E S U B S Y S T E M A C T I V I T Y

 

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

 

SUBSYSTEM 3990-06

CU-ID 0395

SSID 0080

CDATE

11/19/1998

CTIME 10.30.01

CINT 00.59.59

TYPE-MODEL 3990-006

 

 

 

 

 

 

------------------------------------------------------------------------------------------------------------------------------------

CACHE SUBSYSTEM DEVICE OVERVIEW

------------------------------------------------------------------------------------------------------------------------------------

VOLUME

DEV

DUAL

%

I/O

---CACHE HIT RATE--

----------DASD I/O RATE----------

ASYNC

TOTAL

READ

WRITE

%

SERIAL

NUM

COPY

I/O

RATE

READ

DFW

CFW

STAGE

DFWBP

ICL

BYP

OTHER

RATE

H/R

H/R

H/R

READ

*ALL

 

 

100.0

458.9

259.2

195.3

0.0

3.8

0.1

0.3

0.2

0.0

23.1

0.990

0.986

0.998

57.3

*CACHE-OFF

 

0.0

0.0

 

 

 

 

 

 

 

 

 

 

 

 

 

*CACHE

 

 

100.0

458.9

259.2

195.3

0.0

3.8

0.1

0.3

0.2

0.0

23.1

0.990

0.986

0.998

57.3

SYSD01

0380

 

1.2

5.7

5.3

0.4

0.0

0.0

0.0

0.0

0.0

0.0

0.0

1.000

1.000

1.000

93.4

VLD100

0381

 

2.7

12.6

4.4

8.1

0.0

0.0

0.0

0.0

0.0

0.0

3.0

0.996

0.994

0.997

35.5

VLD074

0382

 

7.4

33.9

27.4

6.0

0.0

0.5

0.0

0.0

0.0

0.0

1.9

0.985

0.982

1.000

82.4

VLD101

0383

 

3.8

17.3

5.8

11.4

0.0

0.1

0.0

0.0

0.0

0.0

5.6

0.996

0.995

0.996

33.6

VLD312

0384

 

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.048

0.200

N/A

100.0

VLD105

0385

 

0.6

2.6

2.1

0.5

0.0

0.0

0.0

0.0

0.0

0.0

0.1

0.997

0.998

0.993

81.3

VLD134

0386

 

4.8

21.9

18.0

3.7

0.0

0.3

0.0

0.0

0.0

0.0

0.3

0.988

0.986

0.999

83.1

VLD071

0387

 

0.2

1.0

0.8

0.2

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.996

0.997

0.991

80.6

SPLD02

0388

 

6.3

28.8

10.7

17.4

0.0

0.7

0.0

0.0

0.0

0.0

1.3

0.977

0.942

1.000

39.6

Figure 49. Cache Subsystem Activity Device Overview Report

I/O Performance and Monitoring Tools

127

Page 149
Image 149
IBM 5695-DF1, 5655-DB2 manual 127, C H E S U B S Y S T E M a C T I V I T Y

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.

IBM 5655-DB2 is a well-known relational database management system (RDBMS) that excels in managing large volumes of structured data. Its architecture is designed to support high availability, scalability, and performance, crucial for businesses operating in today’s data-driven world. Some of its main features include advanced indexing capabilities, support for complex queries, and dynamic workload management. Additionally, it provides strong concurrency controls, which enable multiple users to access and manipulate data simultaneously without compromising data integrity.

One of the key characteristics of DB2 is its support for various data types, including JSON and XML, making it versatile for modern applications that generate data in diverse formats. It also features robust security mechanisms to protect sensitive data, aligning with compliance standards across industries. Integration with analytics tools further allows businesses to derive insights from their data, enhancing decision-making processes.

On the other hand, IBM 5695-DF1, also known as the InfoSphere DataStage, is a powerful data integration tool that facilitates the extraction, transformation, and loading (ETL) of data from various sources to target systems. It empowers organizations to streamline their data flows, ensuring that clean, consistent information is available for analysis and operational use. Key features of 5695-DF1 include a user-friendly graphical interface that enhances developer productivity and a rich set of connectors for numerous data sources, enabling seamless data integration.

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.

Both IBM 5655-DB2 and 5695-DF1 are part of a broader strategy to accommodate the evolving landscape of data management. Businesses leverage these technologies to enhance their data architectures, fostering agility and competitive advantage in their respective markets. Their integration capabilities, along with a focus on security and scalability, position them as vital assets in modern enterprise environments. Whether managing critical data within a database or ensuring seamless data flow across systems, these IBM offerings provide a comprehensive approach to handling complex data challenges.