Letters
The Castlewood Orb removable disk drive was reviewed in LJ's December issue. I was intrigued, despite the reported slow speed; I figured there must be a faster SCSI model. In fact, they no longer make the parallel port version you reviewed. It's available as external SCSI or USB, or internal SCSI or ATAPI. I purchased an external SCSI model and I can report the following: I measured write speed at over 3000KB/sec, and hdparm reports reading speed at 8.3MB/sec. Being SCSI, it is trivial to create a Linux-native file system on it and mount it. All and all, I'm very satisfied with my Orb 2.2.
—Peter S. Galbraith GalbraithP@dfo-mpo.gc.ca
You know, I'd love to be using Linux full-time as my home desktop OS, but until it can run Quicken and TurboTax, it's a dead issue. In the meantime, it runs great as my home server...
—Jerry Mooth jerrymoo@yahoo.com
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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.
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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?




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