November 2009
Next-generation Linux file systems
Linux continues to innovate in the area of file systems. It supports the largest variety of file systems of any operating system. It also provides cutting-edge file system technology. Two new file systems that are making their way into Linux include the NiLFS(2) log-structured file system and the exofs object-based storage system. Discover the purpose behind these two new file systems and the advantages that they bring.
Tune your Linux-based server for power efficiency
Part 1 introduces the components and concepts you'll need to tune your system for power efficiency. Part 2 compares the five in-kernel governors: performance, powersave, userspace, ondemand, and conservative. Part 3 show you what results you can achieve by power tuning your system.
October 2009
Getting comfortable with Linux plumbing
If you think streams and pipes make a Linux expert sound like a plumber, here's your chance to learn about them and how to redirect and split them. This article grounds you in the basic Linux techniques for redirecting standard IO streams.
output to both stdout and a file.
Getting comfortable with Linux files and directories
This article grounds you in the basic Linux commands for manipulating files and directories. This article also helps you prepare for Objective 103.2 in Topic 103 of the Linux Professional Institute's Junior Level Administration (LPIC-1) exam 101.
August 2009
Monitoring logs and command output with multitail and watch
Monitoring system logs or the status of a command that produces file or directory output are common tasks for systems administrators. Learn how to use two popular open source tools simplify these activities for modern systems administrators: the multitail and watch commands.
May 2009
The Lean green eco-friendly Linux machine
Green IT is one of the hottest of today's technology trends, and the GNU/Linux community has risen to the challenge. Along with several corporate partners, the GNU/Linux operating system provides solutions for dealing with power consumption, carbon emissions, and e-waste. See the eco-friendly advances of the GNU/Linux and FLOSS communities with green computing practices and how you can help the cause.
Who has better virtualization, HP-UX, Solaris, or AIX
Why is virtualization so important? The short answer is that virtualization enables businesses to lower their technology Total Cost of Ownership (TCO), while increasing their Return on Investment (ROI). What do the top UNIX vendors have to offer with respect to virtualization? Find out what virtualization is more scalable. Here's a look at HP's Virtual Server Environment (VSE), Sun's xVM, and IBM's PowerVM.
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