Question & Answer
Question
The following is a list of answers to frequently asked questions (FAQ) about Migration in IBM Integration Bus (IIB) and WebSphere Message Broker (WMB) for new and experienced users.
Answer
Index of questions in this document:
- 1. What are the supported migration paths for WMB/IIB ?
- 2. Where can I find the detailed System requirements for WMB/IIB?
- 3. Where can I find new features in different versions of WMB/IIB?
- 4. What are the steps I must take for migration?
- 5. How much disk space is required for WMB/IIB?
- 6. In what order should I migrate WMB/IIB components?
- 7. Will migrating Broker to a new version affect my applications ?
- 8. How can I verify that my migration was successful?
- 9. Would migration require broker to be in a stopped state ?
- 10. Will I see a performance gain with the new Broker version ?
- 11. How do I migrate publish/subscribe applications ?
- 12. How will migration affect development projects such as message flow projects?
- 13. Where can I find changes to message flow nodes in the new version of Broker?
- 14. What is the end of support life cycle of the WMB/IIB version I'm migrating to?
- 15. Are there environment changes required to run broker successfully after the migration?
- 16. Can I migrate from a stand-alone Broker to a multi-instance Broker?
- 17. What are my coexistence options for running different versions of WMB/IIB on the same machine?
- 18. Is it possible to use a different fixpack level of Toolkit and Broker runtime?
- 19. Where can I download the latest maintenance release?
- 20. What ODBC configuration changes are required to connect to an application database during migration?
1. What are the supported migration paths for WMB/IIB ?
WMB/IIB provides migration paths from previous versions of the product. The following pages give information on migration:
- IIB V9 supported migration paths http://www.ibm.com/support/knowledgecenter/SSMKHH_9.0.0/com.ibm.etools.mft.doc/bh44965_.htm?lang=en
- WMB V8 supported migration paths http://www.ibm.com/support/knowledgecenter/SSKM8N_8.0.0/com.ibm.etools.mft.doc/bh44965_.htm?lang=en
- WMB V7 supported migration paths http://www.ibm.com/support/knowledgecenter/SSKM8N_7.0.0/com.ibm.etools.mft.doc/bh44965_.htm?lang=en
2. Where can I find the detailed System requirements for WMB/IIB?
The detailed system requirements for WMB/IIB are located here:
- IIB V9 System Requirements: http://www.ibm.com/support/docview.wss?&uid=swg27038798
- WMB V8 System Requirements: http://www.ibm.com/support/docview.wss?&uid=swg27023737
- WMB V7 System Requirements: http://www.ibm.com/support/docview.wss?&uid=swg27022277
3. Where can I find new features in different versions of WMB/IIB?
New features introduced in different versions of Broker can be found in the following pages:
- IIB V9 What's new? http://www.ibm.com/support/knowledgecenter/SSMKHH_9.0.0/com.ibm.etools.mft.doc/bb23800_.htm?lang=en
- WMB V8 What's new? http://www.ibm.com/support/knowledgecenter/SSKM8N_8.0.0/com.ibm.etools.mft.doc/bb23110_.htm?lang=en
- WMB V7 What's new? http://www.ibm.com/support/knowledgecenter/SSKM8N_7.0.0/com.ibm.etools.mft.doc/bb45000_.htm?lang=en
4. What are the steps I must take for migration?
The migration steps are detailed in the WMB/IIB documentation links below:
- IIB V9 Migration tasks: http://www.ibm.com/support/knowledgecenter/SSMKHH_9.0.0/com.ibm.etools.mft.doc/bh19430_.htm?lang=en
- WMB V8 Migration tasks: http://www.ibm.com/support/knowledgecenter/SSKM8N_8.0.0/com.ibm.etools.mft.doc/bh19430_.htm?lang=en
- WMB V7 Migrating and upgrading: http://www.ibm.com/support/knowledgecenter/SSKM8N_7.0.0/com.ibm.etools.mft.doc/ah14130_.htm?lang=en
5. How much disk space is required for WMB/IIB?
The memory and disk space requirements for different versions on different operating systems are listed here:
- IIB V9 Memory and disk space requirements: http://www.ibm.com/support/knowledgecenter/SSMKHH_9.0.0/com.ibm.etools.mft.doc/ah09086_.htm?lang=en
- WMB V8 Memory and disk space requirements: http://www.ibm.com/support/knowledgecenter/SSKM8N_8.0.0/com.ibm.etools.mft.doc/ah09086_.htm?lang=en
- WMB V7 Memory and disk space requirements: http://www.ibm.com/support/knowledgecenter/SSKM8N_7.0.0/com.ibm.etools.mft.doc/ah09086_.htm?lang=en
6. In what order should I migrate WMB/IIB components?
WMB/IIB has two components - Toolkit and Runtime. Migration of Runtime can be performed independent of Toolkit. In such a case, deployment using new features of the higher version might not work. For details on upgrading different components, please see the following links:
- IIB V9 Migration tasks: http://www.ibm.com/support/knowledgecenter/SSMKHH_9.0.0/com.ibm.etools.mft.doc/bh19430_.htm?lang=en
- WMB V8 Migration tasks: http://www.ibm.com/support/knowledgecenter/SSKM8N_8.0.0/com.ibm.etools.mft.doc/bh19430_.htm?lang=en
- WMB V7 Migrating and upgrading: http://www.ibm.com/support/knowledgecenter/SSKM8N_7.0.0/com.ibm.etools.mft.doc/ah14130_.htm?lang=en
7. Will migrating Broker to a new version affect my applications ?
Before migrating Broker, please ensure that the newer version of WMB/IIB is tested/supported with your applications. The following system requirements pages list all the supported software.
- IIB V9 System Requirements: http://www.ibm.com/support/docview.wss?&uid=swg27038798
- WMB V8 System Requirements: http://www.ibm.com/support/docview.wss?&uid=swg27023737
- WMB V7 System Requirements: http://www.ibm.com/support/docview.wss?&uid=swg27022277
8. How can I verify that my migration was successful?
A successful migration would require all the migration steps are completed successfully. Migration verification can be performed using the following instructions:
- IIB V9 Verifying Broker: http://www.ibm.com/support/knowledgecenter/SSMKHH_9.0.0/com.ibm.etools.mft.doc/ae14950_.htm?lang=en
- WMB V8 Verifying Broker: http://www.ibm.com/support/knowledgecenter/SSKM8N_8.0.0/com.ibm.etools.mft.doc/ae14950_.htm?lang=en
- WMB V7 Verifying Broker: http://www.ibm.com/support/knowledgecenter/SSKM8N_7.0.0/com.ibm.etools.mft.doc/ae14950_.htm?lang=en
It is also recommended to check the broker logs (syslogs on UNIXes, Event viewer logs on Windows) for any errors.
9. Would migration require broker to be in a stopped state ?
Migrating to WMB V8/IIB V9 can be performed in a couple of ways:
- Immediate or in-place migration would require broker to be in a stopped state prior to migration.
- For parallel migration, the broker does not need to be stopped.
For more details please see the following links:
- IIB V9.0 Preparing for migration: http://www.ibm.com/support/knowledgecenter/SSMKHH_9.0.0/com.ibm.etools.mft.doc/bh23360_.htm?lang=en
- WMB V8.0 Preparing for migration: http://www.ibm.com/support/knowledgecenter/SSKM8N_8.0.0/com.ibm.etools.mft.doc/bh23360_.htm?lang=en
- Migrating to WMB V7.0 from the previous releases requires broker to be in stopped state.
10. Will I see a performance gain with the new Broker version ?
Please check the performance reports for different versions of WMB to understand the performance characteristics of WMB :
11. How do I migrate publish/subscribe applications ?
Starting with WMB V7 the publish/subscribe engine is hosted in WMQ. This involves migration of publish/subscribe configuration (topics, subscriptions, ACLs and message flows). The detailed procedure is listed in the following links:
- IIB V9 Migrating Publish/ Subscribe to WebSphere MQ: http://www.ibm.com/support/knowledgecenter/SSMKHH_9.0.0/com.ibm.etools.mft.doc/bq13050_.htm?lang=en
- WMB V8 Migrating Publish/ Subscribe to WebSphere MQ: http://www.ibm.com/support/knowledgecenter/SSKM8N_8.0.0/com.ibm.etools.mft.doc/bq13050_.htm?lang=en
- WMB V7 Migrating Publish/ Subscribe to WebSphere MQ: http://www.ibm.com/support/knowledgecenter/SSKM8N_7.0.0/com.ibm.etools.mft.doc/bq13050_.htm?lang=en
12. How will migration affect development projects such as message flow projects?
As a part of migrating the broker, you must migrate development source projects. Details are included in the following links:
- IIB V9 Migrating Toolkit development resources: http://www.ibm.com/support/knowledgecenter/SSMKHH_9.0.0/com.ibm.etools.mft.doc/bh23410_.htm?lang=en
- WMB V8 Migrating Toolkit development resources: http://www.ibm.com/support/knowledgecenter/SSKM8N_8.0.0/com.ibm.etools.mft.doc/bh23410_.htm?lang=en
- WMB V7 Migrating Toolkit development resources: http://www.ibm.com/support/knowledgecenter/SSKM8N_7.0.0/com.ibm.etools.mft.doc/bh44670_.htm?lang=en
13. Where can I find changes to message flow nodes in the new version of Broker?
In general, you can find changes made to nodes including the removal of a node in the following documentation links:
- IIB V9 Changes to nodes: http://www.ibm.com/support/knowledgecenter/SSMKHH_9.0.0/com.ibm.etools.mft.doc/bq13000_.htm?lang=en
- WMB V8 Changes to nodes: http://www.ibm.com/support/knowledgecenter/SSKM8N_8.0.0/com.ibm.etools.mft.doc/bq13000_.htm?lang=en
- WMB V7 Changes to nodes: http://www.ibm.com/support/knowledgecenter/SSKM8N_7.0.0/com.ibm.etools.mft.doc/bq13000_.htm?lang=en
14. What is the end of support life cycle of the WMB/IIB version I'm migrating to?
Here is the link to life cycle dates listed by product:
15. Are there environment changes required to run broker successfully after the migration?
On Windows, when WMB/IIB command console is invoked, it sets the command environment for the user to execute any mqsi* commands.
On UNIXes, a sample profile "mqsiprofile" is provided under <WMB install>/bin/profiles directory that may be sourced in the user's environment to set up the command environment.
Any other environment variables required by the applications, such as user-defined nodes, application databases etc. will have to be exported in the broker environment after migration.
Please refer to the following links for details of setting up command environment:
- IIB V9 Setting up command environment: http://www.ibm.com/support/knowledgecenter/SSMKHH_9.0.0/com.ibm.etools.mft.doc/an26190_.htm?
- WMB V8 Setting up command environment: http://www.ibm.com/support/knowledgecenter/SSKM8N_8.0.0/com.ibm.etools.mft.doc/an26190_.htm?
- WMB V7 Setting up command environment: http://www.ibm.com/support/knowledgecenter/SSKM8N_7.0.0/com.ibm.etools.mft.doc/an26190_.htm?
16. Can I migrate from a stand-alone Broker to a multi-instance Broker?
It is not possible to migrate a stand alone broker at previous version to a multi-instance broker at the version you are migrating to.
17. What are my coexistence options for running different versions of WMB/IIB on the same machine?
Please refer to the following links to find out version co-existence:
- IIB V9 Coexistence: http://www.ibm.com/support/knowledgecenter/SSMKHH_9.0.0/com.ibm.etools.mft.doc/bh25905_.htm?lang=en
- WMB V8 Coexistence: http://www.ibm.com/support/knowledgecenter/SSKM8N_8.0.0/com.ibm.etools.mft.doc/bh25905_.htm?lang=en
- WMB V7 Coexistence: http://www.ibm.com/support/knowledgecenter/SSKM8N_7.0.0/com.ibm.etools.mft.doc/bh25905_.htm?lang=en
18. Is it possible to use a different Fix Pack level of Toolkit and Broker runtime?
Toolkit and Broker Runtime can be at different Fix Pack levels. Note, new features that are introduced in a higher Fix Pack levels of Broker will not work with a previous Fix Pack levels of Toolkit and vice versa.
19. Where can I download the latest maintenance release?
WMB/IIB Fix Packs can be downloaded from the following link: http://www.ibm.com/support/docview.wss?&uid=swg27006041
The following FixCentral link contains some specific APAR fixes: http://www-933.ibm.com/support/fixcentral/
20. What ODBC configuration changes are required to connect to an application database during migration?
ODBC configuration changes are dependent on the Broker version. Please check the following links that describe the ODBC definitions that are required to be updated when migrating:
- IIB V9 Updating ODBC definitions when migrating: http://www.ibm.com/support/knowledgecenter/SSMKHH_9.0.0/com.ibm.etools.mft.doc/bh23390_.htm?lang=en
- WMB V8 Updating ODBC definitions when migrating: http://www.ibm.com/support/knowledgecenter/SSKM8N_8.0.0/com.ibm.etools.mft.doc/bh23390_.htm?lang=en
- WMB V7 Updating ODBC definitions when migrating: http://www.ibm.com/support/knowledgecenter/SSKM8N_7.0.0/com.ibm.etools.mft.doc/bh44740_.htm?lang=en
Checklist for WebSphere Message Broker ODBC setup on UNIXes: https://www.ibm.com/developerworks/community/blogs/aimsupport/entry/checklist_websphere_message_broker_odbc_setup_on_unixes?lang=en
Product Synonym
WMB MB WebSphere Message Broker IBM Integration Bus IIB IBMIB MQ Integrator WBIMB WBI-MB MQSI WMQI
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Modified date:
23 March 2020
UID
swg21649468