Deep-dive into SAP OpenSwitch [Part 1]

    By: Paul Vero on Sep 01, 2014

    This article takes a detailed look at configuring SAP OpenSwitch. The rich set of configurable properties are discussed and examples on using some these properties are provided.

    Last month I provided an overview of the SAP OpenSwitch 15.1 product. In this article, a two parter, I’ll go into more of a deep dive into various topics to cover aspects in more detail. There are several configurations to go over with some demos to illustrate the behaviors and outcomes. The documentation is rich in detail, so I’ll just go over stuff I’ve learned in my trials and tribulations with SAP OpenSwitch. In this way, you can go over the docs and perhaps use the article content as the cookbook to configure your switches and from there you can figure out what works best for your particular situation. The main objective of the SAP OpenSwitch is to eliminate the single point of failures. A minimal configuration maybe isn’t 100% fail-safe but will provide an efficient means to achieve the goal. If you have plenty of hardware to use you can configure an excellent means to eliminate the fail points.

    As I develop this article I’ll have a better idea towards the end on if there will be a third piece in the series. It depends on how carried away I get with explaining the aspects I’d like to cover which are primarily how I learned how to setup and test the configurations I see customers utilize in the real world. Keep in mind, each demo I’ll go over has been something I learned from a customer configuration while attempting to recreate their problems and using the configuration as a test case to provide to engineering to seek resolution.

    Configuration
    The SAP OpenSwitch has a rich set of configurable attributes. I’ll cover some of it here to explain some of the very important items found in the config file. The Administration Guide covers the various properties in detail so I won’t cover every single one. You find the config file under $SYBASE/OpenSwitch-15_1/config, named for the SAP OpenSwitch server. In this sample, my server name is xposw151, thus filename is xposw151.cfg. There are three methods to config this file. You can simply edit the file under your favorite editor, which we’ll cover in a bit as we walk through the file. You can use the SAP OpenSwitch configuration tool but this is more for the initial configuration after the installation where you set server name, port, etc, and then it will start the SAP OpenSwitch initially. To set this up, we set JAVA_HOME to the %SYBASE%\Shared[or shared]\JRE-6_0_6_32BIT. Then in the %SYBASE%\OpenSwitch-15_1\CFG-1_0\bin folder run the script with name of oswcfg.bat (or oswcfg.sh).

     

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    Released: September 1, 2014, 12:25 pm | Updated: November 5, 2014, 6:40 am
    Keywords: OpenSwitch Article | Technical Journal | ASE | Configuration | OpenSwitch | Paul Vero | Sybase Central


     

     

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