Storage for Virtualization

This series of guides presents critical information on storage for virtual environments. With my background in enterprise storage, I see desktop and server virtualization presenting key infrastructure challenges and changing the direction of storage architecture.

This series of guides began as blog posts and presentations, but has evolved into reference material. Please comment and provide feedback, updates, and suggestions. Thanks!

GPS Time Rollover Failures Keep Happening (But They’re Almost Done)

This is week “1111111111” in the GPS system. Tomorrow morning it will roll over to week “0000000000”. How well will various systems handle this change? Not well, judging by what we’ve seen so far!

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.

Regarding My Symbolic Links and Good Reads

April 16, 2015

I’ve been told that my shares drive traffic to the blogs I read. I’m thrilled that I can share great writing with you in this way, and I hope you find it valuable! But just in case you don’t, I hope you’ll take advantage of the fact that I filter these posts for you into “Symbolic Links” and “Good Reads” so you’ll find it easier to ignore them.

Rocking Out With the Topping VX1 Desktop/Bookshelf Amplifier

October 6, 2015

A few months back, I asked folks on Twitter and LinkedIn for recommendations for a desktop amplifier for a pair of bookshelf speakers. I ended up with a Topping VX1, one of the many “Class-T” digital amps lauded by audiophiles for their excellent sound reproduction. Boy am I impressed! It’s rare that such an inexpensive gadget (around $100!) delivers so much performance!

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.

What’s the Deal with Containers?

October 21, 2016

Lately, it seems like everyone just can’t stop talking about containers. But I’m sensing a distinct lack of real understanding of the technology from many people, not to mention lots of confusion about what containers really mean for today’s datacenter folks. So I set about learning more and figuring out for myself what the deal is with containers. Here’s where I’m at.

Begun, the Patent Wars Have

July 9, 2012

Every day, it seems there is a new lawsuit in the mobile phone industry. HTC, Motorola, Google, Microsoft, and especially Apple and Samsung are actively litigating their way through a thicket of patents. The same is increasingly happening in the rest of the IT industry. But is all this bloodshed really about innovation? Or is it, as one federal judge noted, simply a new form of intense business competition?

SMB 3 is Going to be Huge, in both Scope and Impact

May 6, 2012

Microsoft is about to release the third major revision to their ubiquitous network storage protocol, SMB. Windows Server 2012 and Hyper-V 3 will really highlight this technology, and I predict it will transform the way people think about networked storage for Windows systems. But SMB 3 is big in another way, too: there are tons of new features, and not all will be implemented by everyone.

Are You a Hypervisor Hugger or a Storage Stalwart?

November 14, 2011

The time has come to take sides on the core question of storage for virtual servers: Do you want storage intelligence to live in the hypervisor or the array? Most administrators are already lining up on one side or the other, unintentionally casting their vote while the rest flounder. But the storage industry must wake up and embrace the divide.

Not All 802.11n Networks Are Alike

July 2, 2011

Buyers of 802.11n wireless network equipment should not assume they will see a great benefit right out of the box. Most will have to enable by hand a high-performance configuration including wide channels and 5 GHz operation. And some client devices may never reach the levels of performance expected by consumers due to hardware limitations.