OS X Yosemite SendRawHCICommand EnqueueRequestForController

Tuesday, June 23, 2015

I frequent the Console application in OS X, and, lately, I have been noticing a lot of the following error message:

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Wireless Laptop to Wireless Laptop Real World Throughput Benchmarks

Monday, June 22, 2015

More and more devices are becoming wireless. It isn’t unheard of for one person to be carrying three or more wireless devices on them at one time: a phone, a tablet, a laptop, and, more recently, a watch.

There are plenty of benchmarks and articles detailing the throughput achieved from a wireless device to a wired device - with a wireless router in the middle of course. This is useful to know if you’re transferring or streaming data from your laptop, phone, or tablet to a device connected via ethernet. However, most people forgo connecting anything via ethernet because connecting wirelessly is just too easy. I am much more interested in the throughput achieved from one wirelessly connected device to another wirelessly connected device.

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Doxie's Fanatical Support

Sunday, June 21, 2015

I work for Rackspace, home of Fanatical Support. What is Fanatical Support? Fanatical Support is multifaceted, but one part of it is going above and beyond the call of duty for the customer.

Few companies provide true Fanatical Support. Doxie is one of the companies that does.

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Fix Error 0x80070057 When Installing Windows 7 64-bit on a SSD

Saturday, May 9, 2015

While installing Windows 7 64-bit onto a Samsung 850 Evo SSD, I encountered error 0x80070057 immediately after formatting the hard drive.

Microsoft has a couple of support articles on this issue, but neither of them provide working solutions.

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Datadog OpenStack Capacity Reporting Plugin

Thursday, April 16, 2015

Datadog is a fantastic monitoring as a service company. Install their agent on your host and within seconds metrics are uploaded to their service to begin graphing. Their service can integrate with many popular products, but I have yet to find a plugin to integrate Datadog with one of the most talked about pieces of software today: OpenStack.

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A Future Retina MacBook Running Apple's System-on-a-Chip

Sunday, April 12, 2015

With the release of the new retina MacBook, all of the major tech blogs have released their reviews. Arstechnica always digs deep into the technical bits of a new Apple product and I noticed something interesting buried in one of their pages.

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Setup Varnish 4 on CentOS 6 as a Caching Server and Load Balancer

Sunday, March 29, 2015

In a previous post, I detailed how to setup Varnish 2.1.5 on CentOS 6 as a caching server and load balancer. After setting this up, I realized MP4 files were not streaming and large downloads were taking too long to begin.

Varnish 4 is the latest major release of Varnish and has fixed all of these problems.

This post will be exactly the same as the last post, but will provide the new VCL syntax that applies to Varnish 4.

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Setup Varnish 2.1.5 on CentOS 6 as a Caching Server and Load Balancer

Saturday, March 28, 2015

Varnish is a highly regarded HTTP caching server. It sits in front of your web server tier and caches content in RAM so subsequent requests are served as quickly as possible.

Varnish can also be a basic load balancer. Combining a caching server and a load balancer works extremely well when one or more of your web servers becomes unavailable. Because Varnish is also acting as the load balancer, no longer will the end user possibly see a “Service unavailable” message while the load balancer is removing the unhealthy web server from the load balanced pool, they will simply see a cached paged instead.

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A Quick Force Touch Trackpad Review

Tuesday, March 17, 2015

Force Touch was first revealed in the Apple Watch and now has made its way to Apple’s trackpads. I went to an Apple Store to try out Force Touch on the updated 13” retina MacBook Pro.

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Gluster Heal Not able to fetch volfile from glusterd

Wednesday, February 25, 2015

I recently setup a two node replica Gluster cluster on CentOS 6.6 with Gluster version 3.6.2-1. I setup a private network specifically for Gluster replication and communication and binded the Gluster daemons to this network.

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