Latest Blog Posts


I've recently spent a fair amount of time looking at hyperconverged solutions based on Windows Server 2016's Storage Spaces Direct - aka S2D. To quote Microsoft, in case you're not familiar with S2D: Storage Spaces Direct uses industry-standard servers with ...
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When it came to planning an IPv4 network, we were used to carving up our networks into various different length subnets, depending on our requirements. IPv6 changes things considerably in this respect, enforcing a fixed prefix length of /64. So ...
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In many organisations, IPv4 Multicast lies dormant, rarely (if ever) appearing on the network. Yet in IPv6, Multicast is a fundamental building block. So what are the implications of taking what was a niche player in IPv4 and making it ...
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Don't be fooled into thinking that the only change in IPv6 is longer addresses. There have been a number of other significant changes to the protocol and the implications are wide ranging. IPv6 Packets and Extension Headers There is an ...
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IPv6 Unicast Addressing RFC4291 details the IPv6 addressing architecture. In terms of unicast addresses, the addresses you really need to be aware of are. Loopback Address In IPv4 this is 127.0.0.1 of course. In IPv6 the loopback ...
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Like many people, I've spent a fair amount of time trying to pretend IPv6 doesn't exist. So when one of my clients asked me to help them with their dual-stack IPv6 implementation, it was with some dread that I opened ...
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HPE's announcement that they have agreed to acquire Simplivity has filled a fair few column inches today. On paper it looks like a good move to me, but what I've found most interesting when reading articles and commentary regarding the ...
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  Storage 

Maxta - A Follow Up

On the 12th of October I published a post about my experience with hyperconverged storage company Maxta. The blog was an honest reflection on what turned out to be an expensive failed project for the cloud service provider I was ...
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Yesterday's joint announcement from Amazon and VMWare about VMWare on AWS is potentially a very exciting one, and one that I must admit, took me by surprise. It shouldn't have for two reasons. It makes perfect sense. I read Duncan ...
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In my recent post, Pitfalls of Hyperconverged Storage, I mentioned that I had enjoyed some great successes with hyperconvergence, but also some spectacular failures. My experience with Maxta was without doubt a spectacular failure, and their recent announcement that they ...
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If you look beyond the traditional monolithic storage arrays that dominated the storage market for decades, there are some very interesting things going one. One of the most popular movements is that of Software Defined Storage (SDS), and in particular, ...
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In my previous role working for a service provider, one of the last pieces of work I did before leaving to setup Cloudflux, was to put a couple of whitebox switches running Cumulus Linux into production. I have to admit ...
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I recently had to change laptops. On the positive side, that meant a shiny new laptop for me. On the negative side however, I was faced with the monotonous task of downloading and reinstalling all my usual applications. As someone ...
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