Featured Image

Droplet Computing delivers universal app virtualisation

The IT world is great at delivering technically elegant solutions that intrigue and pique my (and others) interest.  In recent years the entire virtualisation and containers movements have been good examples of this.  Producing something technically interesting doesn’t always lead to a solution that benefits the business.  However, in the case of Droplet Computing, the… Read more »

Featured Image

What is The Container Storage Interface (CSI)?

Despite the initial assumptions that containers wouldn’t need persistent storage, common sense and consensus is moving towards the need to have some sort of continuity with containerised applications.  The reasons are pretty clear.  If a container hosting part of an application dies, it is easier to re-instantiate that container by using any existing data, rather… Read more »

Featured Image

Whatever Happened to VVOLs?

Virtual Volumes, or VVOLs is a technology first introduced by VMware in 2012 to enable the VM-level application of policies to storage.  In the 5+ years since the technology was announced, have VVOLs lived up to initial billing? Background The need for Virtual Volumes was apparent fairly early on in the server virtualisation journey.  Presenting… Read more »

Featured Image

Should I Be Backing Up Containers?

The initial answer to the question, “should I be backing up containers”, would appear to be no.  On the face of it, a container is meant to be a temporary instance of an application component and so not long-lived enough to need backing up.  But digging deeper, there is a need for backup – depending… Read more »

Featured Image

Windows Server, Release Cycles and HCI

The discussion on Storage Spaces Direct (S2D) seems to have generated a lot of interest and a lot of defensive posts. These posts seem to think that what has been written is either wrong or misinformation.  Actually, the issue is poor communication on Microsoft’s part.  However, what’s subsequently been said has left more questions than… Read more »

Featured Image

Block is Not the Solution for Persistent Container Storage

It appears we’re reaching a consensus that persistent storage is needed for containers.  Despite early resistance, with an assumption that containers and their data should be transient, the logic of data persistence is starting to take hold.  To be honest it simply makes sense. Yes, I could keep my data in sync between multiple nodes… Read more »

Featured Image

Scale Computing Debuts HC3 in Google Cloud Platform

Hyper-converged infrastructure is a great technology for running a range of mixed workloads.  With HCI how do you manage DR?  Typically the standard solution might be to run up another cluster in a separate data centre and run both 50% active/active or have one purely for standby.  What about running in the public cloud?  With… Read more »

Featured Image

VMware Cloud on AWS – What We Know So Far

VMworld, VMware’s flagship user conference was held this week in Las Vegas, USA.  One of the main announcements was the eagerly awaited VMware Cloud On AWS (VMC) moving to general availability.  VMC provides the customer experience of VMware software running on AWS hardware in the public cloud. It potentially removes the need to run on-premises… Read more »

Featured Image

rook.io – an attempt at Flocker 2.0

At the end of 2016 ClusterHQ, the developers of Flocker decided to shut down the project with a rather blunt blog post (link).  Rather than take additional funding, CEO Mark Davis (and presumably the board) decided to shut the company down on the assumption that it wasn’t clear where revenue would come from. Based on… Read more »