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1Copyright © 2007 ITGAIN GmbH

Gateway Monitor

Speedgain for DB2 - being able to look into the past

October 7th, 2008

Florian Boldt, itgain, Product Manager


Speedgain for DB2 Gateway Monitor

• DRDA – The way to the DB2 for z/OS

• Conventional Problem Determination

• Speedgain targets and design

• Speedgain architecture and data sources

• Cost of operation

• Benefits

• Recommendations for collector settings

Agenda


The way to the DB2 z/OS

DB2 Gateway(DB2-Connect)

DB2 Server(DB2 for z/OS)

DB2 Client(DB2-Runtime-Client)

Client Network Server Network


The way to the DB2 z/OS - in detail

DB2

CONNECT

APPLICATION

CLI

DRIVER

COMM

DRIVER

DEV

DRIVER

TCP/IP

USS

DDF

DB2MSTR

CLIENT

COMM

SERVER

COMM

DRDA

COMM

Client DB2 - Connect z/OS


The Problem








• Benefits


Agenda


Available data sources from IBM

- Command Level Interface Trace (Application)

- JDBC Trace (Application)

- DB2PD (memory settings and sysplex information from DB2 connect )

- GET SNAPSHOT for DCS databases/applications (DB2 connect)

- DRDA trace (DB2 connect)

- DB2 PING (DB2 connect, Network, DB2 server)

- NETSTAT (TCP/IP)

- DIS DDF DETAIL (DDF)

- DIS THREAD DETAIL (DB2 z/OS)

- DIS DB LOCKS (DB2 z/OS)

- Accounting Trace (DB2 z/OS)

11 data sources!

Collect at the same time and

join the information








• Benefits


Agenda


The Speedgain for DB2 Gateway Monitor targets

Use all existing data sources to collect performance relevant data.

Collect within one snapshot and create a consistent view.

Store the data in a relational model to make analyzing for varying criteria easy (via SQL).

Keep the performance data available for days or weeks to make trend analysis possible.

Locate the bottleneck of a DRDA transaction and show the facts for each involved component


The Speedgain for DB2 Gateway Monitor Design

Take a snapshot of all in a DRDA transaction involved components at the same time and store the performance data with an unique key/timestamp.

Store the performance data into a DB2 LUW database to support flexible visualization and reporting.

Speedgain for DB2 Gateway Monitor is a tool for DB2 administrators and uses DB2 access, query and communication Techniques for internal processing

It is too expensive and too difficult to monitor a running system via permanent traces








• Benefits


Agenda


Speedgain for DB2 Gateway Monitor (DB2 Connect)


The monitoring system – Speedgain for DB2

Collect 24/7

Store/compare

Analyze/ compute/ alert/ report

Speedgain collector

Speedgain performance

database (PDB)

Speedgain GUI


Universal Driver Support (JDBC Type 4)

Application Server DB2 z/OS

DDF DBM1

Application Threads

DB2 Clients Aktive Connections

Inaktive Connections

Pooled DBATs

Aktive DBATs

Application Connection Pooling Thread Pooling

Spe

edgain

JDB

C T

ype

4

Collector

PDB(DB2)

LUW-ID

JRE

Spe

edgain U

DF


Data Sources (DB2 z/OS)

- IFI Records (z/OS)• 0001 System Statistics (DDF)• 0148 Data Base Access Threads (DBAT)• 0148 Accounting (DBAT)• 0148 Lock statistics (DBAT)• 0316 Dynamic Statement Cache• 0124 Active Stements

- TCP/IP (netstat)

- USS (Thread information, BPXPARMS)

- MVS (RMF, CPU, SIO)

- MVS Enclaves (WLM-API, SMF type 30 und 72)


Data Sources (DB2 connect, Network, Application)

- DCS Snapshot Data• DCS Gateway Database Data• DCS Application Data• DCS Statement Data• DCS Transmission Data

- DB2 PING

- Native Ping

- Universal Driver (JDBC Type 4)








• Benefits


Agenda


Cost of operation- Hardware for collector and Performance Data Base

- DB2 connect resources (snapshots) / JDBC exits and fetch process

- Network traffic

- Mainframe CPU time (DB2 trace and UDF)


Cost of operation








• Benefits


Agenda


Benefits

- Easy to install and easy to maintain

- 24 x 7

- Threshold Control Center (threshold violations)

- User Exit for threshold violations

- Historic Mode

- High Level Monitoring (DCS information only)

- Data Sharing support

- Workload Graphs

- Hitratios


Gateway Monitor Screenshots


Gateway Monitor Screenshots








• Benefits


Agenda


Recommendations for collector settings

Problem determination


Recommendations for collector settings

Monitor a well running system (save resources)


Speedgain Gateway Monitor Trial is available


Questions, Trial Request, Comments?

European Sales:

Nils Kaden

[email protected]

US Sales:

Stephen Rubin

[email protected]

further information: http://www.itgain.de


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