Lately concepts like SOA, consolidation, green computing and cloud computing has been the buzzwords in every CIO’s dream and every technicians nightmares, except mine. In my dreams I see datacenters filled with mainframes and I’m pretty sure that’s not what the CIO’s are dreaming about, then it would be called a nightmare. Before we continue on this subject I have to state that I’m a Linux/UNIX consultant, female and not 60+ years old, just to avoid future confusion…

In the dark, behind the headlines of death sentence after death sentence for the mainframe, companies like IBM, HP and Unisys has been working on bringing the mainframe back on the market. We all know that mainframes are huge, power hungry, complex and most of all OLD, but that’s not true. Mainframes are 1500 virtual servers in the same space where you can fit three racks with 126 1U servers, unless you get heat problems. Reduced heat means less cooling for the same amount of servers in the datacenter and together with a focus on power saving mainframes becomes the ultimate choice when it comes to green computing.

Some of the features IBM has been focusing on is new technologies for partitioning, virtualization and smart solutions for load balancing inside the mainframe. Most companies that are already using mainframe invest in more mainframes and are consolidating their Linux systems inside the mainframe. IBM mainframes seems to get their way back to the market with a growth of mainframes world wide with 30.7%, and the latest model IBM System Z10, released in the beginning of this year, has led to a growth of mainframes in Europe with  58%.

With all due respect, mainframes are stable and just as made for cloud computing, but who’s going to operate them? The amount of System Administrators that are familiar with mainframes and applications running on them is barely enough for what’s needed at this point. Same story goes for System Developers that are familiar with languages like Cobol and RPG. My hope is that this lack of competence won’t impede use of mainframes and that more people will see their possibilities for virtualization and cloud computing.

Open Source Forum 2008 toke place in Stockholm on October 7th – 8th. During the first day one of my favorite speakers on this kind of event was having two presentations. First up in the morning Arnoud Engelfriet from ICTRecht in Holland talked about the legal aspects of using and develope open source software and how your company lawyers and engineers could work together with open source. In the afternoon he finished the subject with talking about everything from embedded open source software, distribution of open source software and how GPLv3 could affect your business.

This first day offered a few other interesting presentations such as Alexander Schanz from DFS Deutsche Flugsicherung GmbH who talked about their open source radar data processing system PHOENIX runing on SUSE Linux and Lennart Hagberg from TetraPak who showed us and talked about the open source software behind their communications plattform for videos and documentation, an internal “YouTube”-service together with a wiki for documentation built on LAMP (Linux, Apache, MySQL and PHP) and WordPress.

On day two of Open Source Forum 2008 there were two tracks, one track with presentations like the day before and one track with live demonstrations of products and services. I begun day two at the live demonstrations track listening to Urban Anjar from Ubuntu Sverige talk about Ubuntu Linux and show KVM virtualization on Ubuntu. After the coffee break I ended up talking about Nagios and Op5′s Nagios-based network monitoring system with Jonas Björk and a representative from Op5.

Next up before lunch was Erik Lönroth from Scania Infomate who talked about how the use Linux in their cluster for calculations and simulations. With open standards and open source software they reduced many performance problems, but when they got here they found a new problem, no one had solved the problems they encountered before. To my surprise it would be until this point of this conferense when someone finaly said that you can get far with open source, but when you’re there it’s time to solve the problems never solved before and share them with others. At this moment I found myself thinking that with people like Erik Lönroth out there on the IT departments of the companies there’s hope for open source to survive the step into the world of business.

A presentation that surprised me during this conference was Anders Wallenquist from Vertel/Dataföreningen who talked about the CMS Drupal. I was surprised because I’ve never understood how competent Drupal acctually is and on top of this Dagens Industri, a financial newspaper, will move their webpage to Drupal instead of Escenic and Polopoly like most other newspapers in Sweden uses. To read more about di.se and Drupal IDG wrote about it at http://www.idg.se/2.1085/1.182311.

Back to Open Source Forum 2008, during day two there were two tracks which means a lot of presentations that you don’t have to time to see. I’ve been writing about those presentations that impressed or surprised me during these two days. For the full agenda of this conferense see http://www.opensourceforum.se/Program.htm.

So, what’s my summary of this conferense? Well, it was terribly expencive, only ~50 visitors and I had some very interesting conversations about various subjects with other visitors which would mean that since I’m not paying for it, it was totaly worth it. :)