hardware resources

Monitoring via IPMI

Jul 182012

Original article by http://janssenlima.blogspot.it/ in Portuguese

Today I’ll talk about a very important type of monitoring that is rarely discussed (perhaps because not so many people are privileged to work with hardware that supports this technology: IPMI).

The Intelligent Platform Management Interface (IPMI) is a standard used to manage a computer system and monitor its operation. Its development was led by Intel and is today supported by more than 200 hardware manufacturers.
Its operation is independent of an operating system, which allows administrators to remotely manage the hardware resources even before any OS starts. For example, we can monitor through IPMI system temperatures, voltages, fans (FAN), power supplies, chassis intrusion, etc..
For the ones that wants to go deeper in IPMI specifics, I suggest reading the website of Intel . I think the most interested in this are the Data Center Managers and System Administrators of sites that must be highly available. An IPMI interface collects information using sensors that are responsible for providing this information in real-time.
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Apache Alternatives for Serving PHP

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Oct 152011

This is an article of mine, already published on wazi

Do you have problems serving more than two pages per second on your WordPress or Drupal blog? Do the sites of your competitors serve pages faster than yours? Their secret weapon may be a different web server and PHP combo than Apache and mod_php. But don’t worry – you can turn to one of these alternative solutions too, and improve your web server throughput without upgrading your hardware resources.

First, some background. In general an HTTP or web server sends browser clients a requested page, usually in HTML code, or a page dynamically created with a language such as PHP, one of the most common programming languages for web pages. The PHP scripting language resembles JavaScript, Java, and Perl, all of which share a common ancestor, the C programming language. If you need to embed dynamic text, such as the result of queries on databases, into static text, you’ll find PHP extremely useful.