Monitoring and analyzing performance is an important task for any sysadmin. Disk I/O bottlenecks can bring applications to a crawl. What is an IOP? Should I use SATA, SAS, or FC? How many spindles do I need? What RAID level should I use? Is my system read or write heavy? These are common questions for anyone embarking on an disk I/O analysis quest. Obligatory disclaimer: I do not consider myself an expert in storage or anything for that mater. This is just how I have done I/O analysis in the past. I welcome additions and corrections. I believe itís also important to note that this analysis is geared toward random operations than sequential read/write workloads.
After a long delay, eComStation 2.0 GA will finally become reality. It will be released in time to be presented at the Warpstock Europe 2010 event which is held in Trier, Germany, from May 14 to 16.
We consider eComStation 2.0 to be the biggest overhaul of OS/2 so far. Together with a team of both hired and volunteer developers, we have extended the functionality, removed limitations, updated hardware support as far as possible, and resolved close to 1000 issues that had been reported since the release of eComStation 1.2R. The new eComStation 2.0 GA is the result of several years of combined efforts and investments.
Dive Into Python is one of the worst books for learning Python and it must die. I've had too many potential programmers find this book and get tripped up by its horrible design decisions that I'm declaring war. The book is weird, uses antiquated technology, has horrible examples, and Mark Pilgrim is too much of a neckbeard ass to listen to anyone about it:
The MeeGo community has "opened the repositories" on early code for the netbook-oriented Linux platform, which combines Intel's Moblin and Nokia's Maemo. Images are available for the MeeGo distribution infrastructure and OS base "from the Linux kernel to the OS infrastructure up to the middleware layer."
Exscript is a Python module and template processor for automating Telnet or SSH sessions. Exscript supports a wide range of features, such as parallelization, AAA authentication methods, TACACS, and a very simple template language. Please refer to the project page for updated documentation (see the links at the bottom of this announcement).
The consensus among new Unix and Linux users seems to be that sudo is more secure than using the root account, because it requires you type your password to perform potentially harmful actions. In reality, a compromised user account, which is no big deal normally, is instantly root in most setups. This sudo thinking is flawed, but sudo is actually useful for whatís it was designed for.
Thursday, February 11 2010 @ 09:36 AM CST Contributed by: Linegod
When you use a system often, you tend to fall into set usage patterns. Sometimes, you do not start the habit of doing things in the best possible way. Sometimes, you even pick up bad practices that lead to clutter and clumsiness. One of the best ways to correct such inadequacies is to conscientiously pick up good habits that counteract them. This article suggests 10 UNIX command-line habits worth picking up -- good habits that help you break many common usage foibles and make you more productive at the command line in the process. Each habit is described in more detail following the list of good habits.
When monitoring a Web site, you need to look at it both from a 'micro' perspective (i.e. are the individual devices and servers in your infrastructure running smoothly?) and from a 'macro' perspective (i.e. do your customers have a pleasant experience when accessing and using your site?; can they use your site's functionality to conduct their business online?). You can also think about these types of monitoring as 'engineering' monitoring vs. 'business' monitoring.
Monday, November 02 2009 @ 11:58 AM CST Contributed by: Linegod
Skype (the famous Voice-Over-IP communication program) will be release under an open source license. The story started when Olivier Faurax sent an email requesting Mandriva version of Skype. After a little chat with customer support , he got this replay ď We understand that many users complain that there is no Mandriva version at present.