performance

Essential Reading for VMware ESX iSCSI Users!

January 26, 2009 by Stephen 9 Comments

Update: Check out the latest multi-vendor iSCSI post! I usually don’t write about other peoples’ articles on this blog, preferring to stick to my own independent work. But this time I’m making an exception. If you use or are interested in VMware ESX 3.x and iSCSI, you simply must go read Chad Sakac’s post on the […]

Vista, OS X Boot Time Compared

August 14, 2008 by Stephen 4 Comments

I recently mentioned how impressed I was with the speed of my MacBook, even when running Windows in Boot Camp. Of course, this was a subjective feeling, so I decided to try timing some events to see if the clock agreed with my brain. Sure enough, the Mac is faster than my Dell XPS M1330 […]

Yes, FireWire is Faster Than USB

July 30, 2008 by Stephen 1 Comment

This should not come as a shock to anyone, as it has been proven before, but let me take this moment to say that, yes, despite their rated speeds, 400-megabit FireWire S400 (aka IEEE 1394) is faster than 480-megabit USB 2.0. While swapping out disk drives (first to upgrade the internal drive in my MacBook […]

Which Storage Protocol For VMware?

July 18, 2008 by Stephen Leave a Comment

I had two great storage virtualization seminars this week, in New York and Philadelphia. As usual, audience participation was key, and interest in VMware and Hyper-V remains high. One of the main questions I always get is which protocol one should use for VMware storage. My recommendation remains that the answer is an organizational one […]

Which Storage Protocol For VMware?

March 7, 2008 by Stephen Leave a Comment

One of the hits from my TechTarget storage virtualization seminar this week was a discussion of the relative merits of different storage protocols. Sounds deadly, but this can be quite a religious issue for folks, and it generated lively debate. I’m firmly in the “do what works” camp – there is no always-right protocol, and […]

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Ranting and Raving About the 2018 iPad Pro

I remain enthusiastic about the iPad Pro, despite getting a scratched screen and my concerns about durability. It’s a worthy successor to the original and offers enough improvements that I’d recommend the upgrade for just about anyone who uses their iPad for serious work. It’s still not yet a laptop replacement, but this is due more to a lack of desktop-class software for iOS than anything in Apple’s control.

The 2018 iPad Pro is a Beast!

The third-generation iPad Pro is a great machine but also a bellwether of change at Apple. It will be very hard for the rest of the mobile and client computing industry to keep up with this kind of progress!

The Ideal pfSense Platform: Netgate RCC-VE 2440

September 21, 2015

After some frustration with stability and latency connecting my virtual pfSense router to my cable and DSL modems, I decided to switch to a physical box. I selected the Netgate RCC-VE 2440 as my hardware platform, since it’s the same box that pfSense themselves use as their OEM bundle. It also checks all the boxes with a dual-core Atom CPU, four Gigabit Ethernet ports, and low-power fanless design. Here’s my first impression and installation notes!

The I/O Blender Part 1: Ye Olde Storage I/O Path

May 23, 2012

This old-fashioned, predictable storage I/O path was deterministic and decipherable: The server, the switch, and the array all had enough information to do their jobs effectively and efficiently.

Fasting to Mitigate Jet Lag: Surprise! It Works!

February 11, 2013

I’m a frequent traveler, and thus a frequently suffer from moderate jet lag. It’s just so hard to adjust to a new time zone! But I recently stumbled on a simple method many claim helps your internal clock re-calibrate to travel. After trying it out on my trip to Australia last week, I’m convinced it can help!

Here’s Something Your Raspberry Pi Can’t Do: Gigabit Ethernet and SATA in the Olimex A20-OLinuXIno-LIME2

May 25, 2016

I’ve really enjoyed experimenting with the Raspberry Pi, and have even deployed a few as UNIX servers in my home and office network. The quad-core performance of the latest Pi models is awesome, but serious I/O limitations remain. With just one USB 2.0 interface shared for all network and storage operations, you aren’t going to […]

EMC Redefine Possible (TL;DR Edition)

July 9, 2014

EMC made quite a few announcements today at their “Redefine Possible” event in London. There’s a lot of coverage out there already, so I decided to present a summary of the whole thing in “too long; didn’t read” (TL;DR) fashion.

Virtual Machine Mobility: Of What, and to Where and in What State?

January 16, 2012

Moving cold virtual machine images from system to system, or even across great distances, is one of the main selling points of server virtualization. But it becomes much more difficult to manage movement of virtual machines that are still running, especially outside cluster or across WAN links. When talking about virtual machine mobility, it is important to consider what is being moved, the state it is in, and where it is going.

Infographic: Real-World Port Throughput Relative To Thunderbolt (Formerly Light Peak)

February 21, 2011

Just how fast is 10 gigabits per second anyway? To help out, I’ve prepared another napkin-tastic infographic!

Top VMware Blogs 2014: How I Voted

February 25, 2014

Once again, it’s time for vSphere-Land.com’s “Top vBlog” voting. And once again Feedbin and Twitter are full of hundreds of bloggers lamely begging for me to vote for them. And once again, I didn’t base my votes on their begs or my own hunches. Follow along as I explain how I actually voted and why I think you should use the same mechanism. And no, I’m not going to say who I voted for!