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Note: Before using this information and the product it supports, read the information in “Notices” on page v. First Edition (October 2004) This edition applies to Version 5, Release 01 of IBM WebSphere Business Integration Message Broker for z/OS (product number 5655-K60). © Copyright International Business Machines Corporation 2004. All rights reserved. Note to U.S. Government Users Restricted Rights -- Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
Contents Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii The team that wrote this Redpaper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii Become a published author . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x Comments welcome. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x Chapter 1. Introduction and technical overview. . . . . . . . . . . . . . . . . . . . . . 1 1.1 Project overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.1.1 Availability levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.2 Testing methodology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.2.1 HTTP Listener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.3 Environment overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Chapter 2. Design decisions that affect high availability . . . . . . . . . . . . . . 9 2.1 Considerations when designing for high availability . . . . . . . . . . . . . . . . . 10 2.2 High Availability with Message Broker . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.3 WebSphere MQ options in supporting HA with Message Broker . . . . . . . 12 2.3.1 WebSphere MQ clustering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.3.2 WebSphere MQ shared queues . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.4 Message Broker flow design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2.4.1 Affinities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2.4.2 Error processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 2.5 Message Broker networks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 2.5.1 Further considerations with Message Broker networks . . . . . . . . . . 19 Chapter 3. Topology and system setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3.1 High Availability configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 3.1.1 Active-active . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 3.1.2 Active-passive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 3.2 Test environment topology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 3.3 The z/OS LPARs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 3.4 The DB2 data sharing group configuration . . . . . . . . . . . . . . . . . . . . . . . . 24 3.5 The WebSphere MQ queue sharing group configuration . . . . . . . . . . . . . 25 3.5.1 Queue sharing group configuration considerations. . . . . . . . . . . . . . 25 3.6 The WebSphere Business Integration Message Broker configuration . . . 26 3.6.1 Message Broker configuration considerations . . . . . . . . . . . . . . . . . 27 3.6.2 Additional Message Broker configuration hints . . . . . . . . . . . . . . . . . 29 © Copyright IBM Corp. 2004. All rights reserved. iii
Page 1: High Availability z/OS Solutions fo
Page 6 and 7: 3.7 Automatic Restart Management co
Page 8 and 9: Trademarks The following terms are
Page 10 and 11: From left: Dean, Steve, and Jon Dea
Page 12 and 13: Become a published author Join us f
Page 14 and 15: 1.1 Project overview This paper exp
Page 16 and 17: e compromised while the failing com
Page 18 and 19: Figure 1-2 Test environment topolog
Page 20 and 21: Message Broker is a WebSphere MQ an
Page 22 and 23: 2.1 Considerations when designing f
Page 24 and 25: Table 2-1 Advantages and disadvanta
Page 26 and 27: Advantages Disadvantages Uses the a
Page 28 and 29: In this instance, you should consid
Page 30 and 31: of messages making up a transaction
Page 32 and 33: 20 High Availability z/OS Solutions
Page 34 and 35: 3.1 High Availability configuration
Page 36 and 37: 3.3 The z/OS LPARs There are three
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Page 40 and 41: pool is not available, errors occur
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Page 46 and 47: 4.1 Test environment setup As previ
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IP13 Statistics MVSM0 MVSM2 Total B
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IP13 Statistics MVSM0 MVSM2 Total B
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z/OS DB2 (DSG) QMGR (QSG) Message B
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48 High Availability z/OS Solutions
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ARM policy Example A-1 displays the
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Using the Web material The addition
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How to get IBM Redbooks You can sea
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U UNIX System Services (USS) enviro
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