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8.1 Supported Configurations: IBM AIX 5.1 on pSeries

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IBM AIX 5.1 on pSeries with 8.1 SP2

Provides full support for WebLogic Server and run-time support for WebLogic Workshop, WebLogic Integration, and WebLogic Portal. For Design and Development Tools support, see the


 

This section provides the following information:

Related Information

 

Configuration Requirements

Table 5-1 Requirements for 8.1 SP2 on IBM AIX 5.1 on pSeries 

Operating System Version and Patches

AIX 5L v5.1-ML4 with Recommended Maintenance Package AIX 5100-04; APAR IY39794 and any later compatible level

Chip Architecture and Minimum Processor Speed

  • POWER3 (450 MHz)

  • POWER4 (1 GHz)

SDK

IBM SDK 1.4.1 32-bit (IY48525) JavaTM 2 Runtime Environment, Standard Edition (build 1.4.1) Classic VM (build 1.4.1, J2RE 1.4.1 IBM AIX build ca1411-20030930 (JIT enabled: jitc))

Download the IBM SDK from the IBM Web site and install it, manually, before installing WebLogic Server. For instructions, see see Download and Installation Instructions.

Use of JVM debug mode with the IBM JVM significantly degrades application performance and debugging effectiveness. The JVM debug mode is enabled by default on WebLogic Platform; BEA strongly recommends that you manually disable it when running WebLogic Platform on AIX. For instructions, see JVM Debug Mode Impact.

Design and Development Tools

The WebLogic Workshop IDE and WebLogic Integration Format Builder are not supported on IBM AIX systems. IBM AIX is supported for the production deployment of applications developed in the WebLogic Workshop IDE. Debugging of applications developed in the WebLogic Workshop IDE, for deployment on AIX, should be accomplished to the extent possible on the Workshop development system; use of JVM debug mode with the IBM JVM significantly degrades application performance and debugging effectiveness. IBM AIX is also supported for the development and production deployment of WebLogic Server applications developed with other tools.

RAM

512 MB required; 1 GB recommended

Performance Pack

Included

lib/aix/libmuxer.so

Node Manager

Included

Native

BEA jDrivers for Oracle

For this Oracle client version:

The following shared libraries are provided:

Oracle 8.1.7

  • lib/aix/oci817_8/libweblogicoci39.so

  • lib/aix/oci817_8/libweblogicoxa39.so

Oracle 9.2.0

  • lib/aix/oci920_8/libweblogicoci39.so

  • lib/aix/oci920_8/libweblogicoxa39.so


 

 

Known Issues

This section provides workarounds for the following problems:

For more information about known issues with any components of this release, see the appropriate Release Notes document. For a complete list of Release Notes supporting WebLogic Platform 8.1, see:

http://download.oracle.com/docs/cd/E13196_01/platform/docs81/interm/relnotes.html

IBM JVM Updates For DST

IBM has released a Timezone Update Utility to update DST data without the need to upgrade Java. See IBM Time Zone Update Utility for JavaTM.

WebLogic Server Clustering Limitation

If you want to support WebLogic Server clustering on an AIX 5.1 configuration, open the file $BEA_HOME/weblogic81/common/bin/commEnv.sh in a text editor, and append the following line to the IBM section under $JAVA_VENDOR: 

export JAVA_OPTIONS="$JAVA_OPTIONS -Djava.net.preferIPv4Stack=true"

IIOP Thin Client Not Supported

The IIOP thin client is not supported on AIX due to dependencies on the JVM. Only thin-client applications are affected by this issue.

To work around this issue, run WebLogic Server on AIX and your thin client on another operating system.

Insufficient Buffer Size for UDP_SENDSPACE

The default buffer size for UDP_SENDSPACE is 9216 (9 KB), but WebLogic Server sends fragments up to 32 KB. As a result, use of a buffer size smaller than 32 KB may cause an I/O exception.

To prevent such I/O exceptions:

  1. Set the buffer size to 32 KB:

    2. no -o udp_sendspace=32768

  2. Reboot WebLogic Server.

JVM Debug Mode Impact

Use of JVM debug mode with the IBM JVM significantly degrades application performance and debugging effectiveness. Therefore, whenever you run WebLogic Platform on an AIX configuration, BEA strongly recommends that you disable the JVM debug mode (which, by default, is enabled by WebLogic Platform). Disabling debug mode is recommended for all domains, both existing ones and domains created using the Configuration Wizard.

To disable JVM debug mode:

  1. Go to the target domain directory.
  2. In the setDomainEnv.sh file, find the first occurrence of debugFlag=true.
  3. Change it to: debugFlag=false.
  4. If you are going to use QuickStart, repeat steps 2 and 3 in the setDomainEnvQS.sh file.

    5. Note: If you are going to perform this procedure, you must do so before launching QuickStart.

JAXP Incompatibility Causes Portability Issues with WebLogic Platform 8.1 SP2

Note: This limitation is reported, in CR135846, in the "Known Limitations" section of the WebLogic Platform 8.1 Release Notes.

Because the Xalan transformer shipped with the IBM SDK 1.4.1 is JAXP 1.2-compliant, but WebLogic Platform only supports applications based on JAXP 1.1, you must set the Transformer Factory to weblogic.apache.xalan.processor.TransformerFactoryImpl.

For more information, see:

http://download.oracle.com/docs/cd/E13222_01/wls/docs81/ConsoleHelp/xml.html

 

Download and Installation Instructions

Complete the procedures provided in the following sections:

Once you have completed these procedures, you must also download and install the SDK/Database Patch. See the note at the end of this section.

Note: If you plan to use the WebLogic Integration sample DBMS adapter for DB2, you may want to install an additional patch. For more information, or to obtain the patch, contact BEA Customer Support and specify the patch for CR134068.

For caveats about using this version of WebLogic Platform on an AIX configuration, see Known Issues.

Step 1: Download and Install Operating System Patch

To download and install operating patch IY46667, complete the following steps:

  1. Go to the IBM download site:

    2. https://techsupport.services.ibm.com/server/aix.fdc

  2. Set the search criteria to the following:
  3. Following the instructions and/or prompts displayed on the screen, make the appropriate selections to have IY46667 downloaded and installed on your system.

Step 2: Download and Install the IBM SDK

To run WebLogic Platform 8.1 SP2 on an IBM AIX 5.1 configuration, your environment must include IBM SDK 1.4.1 32-bit PTF: ca1411-20030930. This SDK is not delivered with WebLogic Platform; you must download and install it manually before installing 8.1 SP2.

Note: You cannot use an older version of the IBM SDK, even if one is already installed on your system. You must download and install IBM SDK 1.4.1 32-bit PTF with the following APARs: IY43555, IY46206, IY47536, and IY48525.

To download and install IBM SDK 1.4.1 32-bit PTF: ca1411-20030930, complete the following procedure:

  1. Go to the IBM download site:

    2. https://techsupport.services.ibm.com/server/aix.fdc

  2. Set the search criteria to the following:

    3. Following the instructions and/or prompts displayed on the screen, make the selections required for your configuration and proceed to the next step.

  3. When a list of filesets is displayed, download and install the following filesets:
  4. Repeat steps 1-3 with the following changes:
  5. Repeat steps 1-3 with the following changes:
  6. Repeat steps 1-3 with the following changes:
  7. After all packages are installed, verify that all of them are also applied. To do so, run the following commands:

    8. $ instfix -ivqk IY43555
    $ instfix -ivqk IY46206
    $ instfix -ivqk IY47536
    $ instfix -ivqk IY48525

  8. To verify that the required SDK fixes are now installed on your system, run the following command:

    9. /usr/java14/bin/java -version

    Make sure that the output contains the following string:

    IBM AIX build ca1411-20030930

Step 3: Download and Install WebLogic Platform 8.1 SP2

To install WebLogic Platform 8.1 SP2 on IBM AIX 5.1, complete the following procedure:

  1. From the BEA download site (http://commerce.bea.com), download:
  2. Run the installer:

    3. java -jar filename.jar

    Note: For details, see Installing BEA WebLogic Platform at the following URL:
    http://download.oracle.com/docs/cd/E13196_01/platform/docs81/install/index.html

  3. Unjar the contents of wls81sp2_AIX_supp.jar and copy the libwlenv.so file into the following directory: $BEA_HOME/weblogic81/server/lib/aix.

    4. For example, if you saved wls82sp2_AIX_supp.jar in /tmp, run the following commands:

    cd $BEA_HOME
    jar -xvf /tmp/wls81sp2_AIX_supp.jar

Note: You must also apply the SDK/Database Patch for WebLogic Platform 8.1 SP2. The patch is available for download from: http://dev2dev.bea.com/products/wlplatform81/patch/wlplat81sp2_patch.jsp. For more information, see "SDK/Database Patch" in "What Is New in WebLogic Platform 8.1 SP2" in the WebLogic Platform 8.1 Release Notes: http://download.oracle.com/docs/cd/E13196_01/platform/docs81/relnotes/relnotes.html#sdk_db_patch

 

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