Going green is becoming a well-worn path to saving green—greenbacks, that is. In that spirit, green-IT specialist Green Rack Systems has announced Eco Enclosures, a new line of data-center equipment designed to reduce IT budgets while reducing environmental impact. The turnkey Eco Enclosures solutions, which can be customized to customer needs of any size, contain chassis that are made from recycled materials and are fully recyclable. To save power, Eco Enclosures contain features such as “low-wattage multicore CPUs, low-voltage memory, low-power hard drives and ultra-low consumption power supplies”. Green Rack also offers solar-powered Web hosting and custom-built data centers upon request.
GroundWork Monitor is a free, open-source, Nagios-based VMware virtual appliance for network management. It runs on CentOS and ships with a wide range of additional network tools. The new version 5.3 adds features such as updated Eclipse BIRT reporting views, Nagios 3.0.5 and the ability to monitor more than 1,000 different types of devices; automatic notifications of patches, updates and news; voluntary sharing of usage statistics; autodiscovery functionality and increased scalability. The Community Edition is available for download from GroundWork's Web site.
Ditch one ugly black box by deploying TRENDnet's new TEW-635BRM NADSL 2/2+ Modem Router. The wireless-n device combines modem and router functions and operates at 300Mbps, or 12x the speed and 4x the coverage of wireless g. The switch includes four ports. Key features of the TEW-635BRM include one-touch synchronized Wi-Fi Protected Setup (WPS), the latest in wireless encryption, a double firewall and advanced antenna technology (MIMO) that delivers broad coverage and minimizes dead spots. The device also sports green credentials, such as ENERGY STAR and RoHS compliance—the former related to power consumption and the latter to restricting hazardous substances in electronic equipment.
Learning databases can be fun? Such is the premise of Mana Takahashi and Shoko Azuma's new book The Manga Guide to Databases, published by No Starch Press. The book uniquely fuses Japanese-style comics with serious educational content on databases. It tells the story of Princess Ruruna's challenges in managing the Kingdom of Kod's humongous fruit-selling empire. Tico the fairy teaches the princess how to simplify her data management, and together they design a relational database. They cover concepts such as the the entity-relationship model, basic database operations, SQL statements, database tuning, security, concurrency and replication. Other features include examples and exercises (with answer keys) and an appendix of frequently used SQL statements.
If you want to learn Python and your learning style is visual, offer up a gleeful shout for Wesley Chun's new instructional video Python Fundamentals. Part of Prentice Hall's LiveLessons series, the video course mirrors topics covered in its sister publication, Core Python Programming, Second Edition. Covered are both Python fundamentals, such as syntax basics and standard types and operations, and advanced topics, such as Python's memory model and object-oriented programming. The publisher states that both new and experienced users will find the product useful. The companion booklet contains review questions and coding exercises.
Hot off the assembly line at Round Solutions is the new AarLogic C10/3, a diminutive Linux-based breadboard covering a mere 104mm x 63mm of real estate. The board sports quadband GPRS and SiRF3 GPS modules; interfaces for USB, RS-232 and Ethernet; SD-card reader; 4MB of RAM and dual ARM processors. The processor module is responsible for GSM functionality and for applications executable under embedded Linux. Connectivity options via the board's 192-pin socket include not only keyboards, digital cameras and reading devices but also WLAN, Bluetooth and GPS components. Round Solutions adds that the AarLogic C10/3 can be easily coupled with a camera or environmental sensors. Ideal applications include self-sufficient positioning and monitoring systems due to the wireless provision of spatial coordinates.
James Gray is Products Editor for Linux Journal
|Designing Electronics with Linux||May 22, 2013|
|Dynamic DNS—an Object Lesson in Problem Solving||May 21, 2013|
|Using Salt Stack and Vagrant for Drupal Development||May 20, 2013|
|Making Linux and Android Get Along (It's Not as Hard as It Sounds)||May 16, 2013|
|Drupal Is a Framework: Why Everyone Needs to Understand This||May 15, 2013|
|Home, My Backup Data Center||May 13, 2013|
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Enter to Win an Adafruit Pi Cobbler Breakout Kit for Raspberry Pi
It's Raspberry Pi month at Linux Journal. Each week in May, Adafruit will be giving away a Pi-related prize to a lucky, randomly drawn LJ reader. Winners will be announced weekly.
Fill out the fields below to enter to win this week's prize-- a Pi Cobbler Breakout Kit for Raspberry Pi.
Congratulations to our winners so far:
- 5-8-13, Pi Starter Pack: Jack Davis
- 5-15-13, Pi Model B 512MB RAM: Patrick Dunn
- 5-21-13, Prototyping Pi Plate Kit: Philip Kirby
- Next winner announced on 5-27-13!
Free Webinar: Hadoop
How to Build an Optimal Hadoop Cluster to Store and Maintain Unlimited Amounts of Data Using Microservers
Realizing the promise of Apache® Hadoop® requires the effective deployment of compute, memory, storage and networking to achieve optimal results. With its flexibility and multitude of options, it is easy to over or under provision the server infrastructure, resulting in poor performance and high TCO. Join us for an in depth, technical discussion with industry experts from leading Hadoop and server companies who will provide insights into the key considerations for designing and deploying an optimal Hadoop cluster.
Some of key questions to be discussed are:
- What is the “typical” Hadoop cluster and what should be installed on the different machine types?
- Why should you consider the typical workload patterns when making your hardware decisions?
- Are all microservers created equal for Hadoop deployments?
- How do I plan for expansion if I require more compute, memory, storage or networking?