Migration of Client Reference Data Application

 

Problem

• To Migrate an application running on Solaris to SuSE Linux cluster
• To standardize the application environment using Linux, to reduce costs
• To pilot the use of Linux clusters for 24x7 availability
• The application uses a host of third party software e.g. Web Logic, Oracle, iPlanet, Log4J etc.

 

Challenges

• To make the application clustered, we now have a list of points relating to Operating system, installation, code modifications etc.
• Lack of multi node clustering licenses on Linux for offshore. This was over come by configuring Linux on Single node cluster and configuring multimode cluster on Windows and conducting a POC

 

Infosys Solution

• A prototype was developed on RedHat Linux for checking the feasibility
• The code was later Migrated to SuSE 8.1
• All the third party software used by the application on Linux cluster were configured
• All the configuration and clustering parameters were decided
• Infrastructure planning was done to decide on the target hardware

 

Benefits

• The benefits of standardizing the organization's server base on Linux were show cased
• Vendor lock in on SUN was removed
• Now the clients can afford to have extra machines which helps to make the system failsafe
• Organization was able to reduce cost by replacing mid-range Sparc/Solaris boxes with cluster of Xeon boxes running on SuSE Linux
• High availability was achieved using clustered environment

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