IBM has published the following technical articles, tutorials, and downloads on its developerWorks Website. They cover a range of interesting (though not necessarily embedded) technical topics, primarily related to Linux and open source system development. Some require free registration. Enjoy . . . !

• A moment of Xen: Virtualize Linux to test your apps — Xen is a paravirtualization technology available for the Linux kernel that lets you enclose and test new upgrades as if running them in the existing environment but without the worries of disturbing the original system. This article shows you how to install a Xen system that will give administrators a valuable sandbox for testing system upgrades (as well as a playground for running multiple virtual machines on the same Linux box).
• Matching High Availability with Server Load Balancing — Workload management is critically important for an on-demand business. IBM LoadLeveler is a job-management system that allows users to run more jobs in less time by matching the jobs' processing needs with the available resources. Maintaining maximum system uptime of the job management system is increasingly important.
• Embedding Perl in database tables — Put Perl into your RDBMS design to reach database nirvana. This installment looks specifically the Class::DBI CPAN module and MySQL to introduce you to embedding Perl in database tables.
• An Embedded View of the Mac Mini — The Mac Mini isn't just competition for Shuttle computers and mini-tower PCs. It's also competition for the much smaller embedded development boards that many users are building custom applications around. Peter Seebach takes a look at the Mac Mini as an embedded development platform.
• State of the art Gid computing — Here's a wide-ranging discussion with IBM's Ken King, vice president, Grid Computing, regarding the State of the Art Grid Computing and current activities, positions, and ideas on this front from IBM.
• Using the PHP 5 SOAP extension — Many Web developers enjoy the versatility and ease of use of PHP, but sometimes they need to access existing business logic in a J2EE application server. In this article and through code examples, learn how to use the new SOAP extension in PHP 5 to access a J2EE application using Web services, without having to leave the PHP environment or learn a new programming model.

 
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