Google Share Details on Their Datacentre Network Evolution

On Tuesday at the ACM SIGCOMM 2015 conference in London, Google shared details, and I do mean details, on the way their internal datacentre networks are (or at least were) constructed. In a paper titled Jupiter Rising: A Decade of Clos Topologies and Centralized Control in Google’s Datacenter Network [PDF] the authors describe how… Read More

Announcement: I’m Going to VFD4!

I get to go to another Tech Field Day event! Yay! <glee mode> Stephen, Tom, Claire and the crew have kindly invited me to attend Virtualization Field Day 4 in Austin, TX in January 2015. The invitations only just went out, so the details are still coming through about who… Read More

NTAPInsight with Clarence the Horse

Those who follow me on Twitter were treated to the perspective of my new travelling companion, Blue Cow, during my trip to VeeamON. This week, I continue the tradition. Alas, Blue Cow was not allowed to join me, so Clarence the horse has come with me instead. Clarence is a… Read More

Tech Company Breakups

Multiple tech companies are in the news lately because they’re splitting off parts of themselves. HP, Symantec, and eBay are all splitting off major sections, and there’s speculation about EMC splitting off VMware, and maybe Cisco doing something similar. There was also a conversation about the topic on this week’s… Read More

Cisco ACI and Lossy Control

The centralised command-and-control method doesn’t work at scale. Many people have discovered this independently, from the Romans to the Chinese. It’s just not humanly- (or even computerly-) possible to track that many interdependent variables and make smart decisions. To manage a vast array of components, a central apparatus needs to… Read More

SFD5 Prep Work: Scale Computing

Scale sell a converged platform: compute and storage in pizza boxes that glom together to make a cluster of 3 to 8 nodes, like Voltron. It’s based on KVM, with proprietary bits added into the mix. Scale make a big deal about “no licensing” or, as they call it, a… Read More