Chris Evans

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Top Stories by Chris Evans

In the first wave of solid-state storage arrays, we saw commodity style SSDs (solid state drives) being added to traditional storage arrays. This solution provided an incremental benefit in performance over spinning hard drives, however the back-end technology in these arrays was developed up to 20 years ago and was purely focused around driving performance out of the slowest part of the infrastructure – the hard drive.  Of course SSDs are an order of magnitude faster than HDDs so you can pretty much guarantee SSDs in traditional arrays results in underused resources, but is premium priced. Wave 2 of SSD arrays saw the development of custom hardware, mostly still continuing to use commodity SSDs.  At this point we saw full exploitation of the solid state capabilities, with architecture designed to provide the full performance capabilities of solid state drives.  Thes... (more)

Cloud Computing and William Shakespeare

Probability says that with an infinite number of monkeys and typewriters given an infinite amount of time, at some stage the monkeys will produce the entire works of Shakespeare. According to this BBC News article, a programmer in the US has tried to do just that, using AWS (Amazon Web Services).  He’s created virtual monkeys that run on AWS instances, typing out fragments of the great Bard’s collected works. It sounds like a great thing to do, however maths is against him. With 26 letters, doubled for upper and lower case, plus maybe a dozen punctuation symbols and the space, e... (more)

APIs: Essential for Delivering Storage in Enterprise Cloud Infrastructures

It’s pretty easy to pick holes in the current legacy storage products, especially when it comes to integration within both public and private cloud deployments.  However it’s worth discussing exactly what is required when implementing cloud frameworks, as the way in which storage is deployed is radically different from the traditional model of storage operations.  In this post we will look at why traditional methods of storage management need to change and how that affects the way in which the hardware itself is used.  This leads to a discussion on APIs and how they are essential... (more)

Storage in Cloud Is Not the Center of the Universe

In a previous post, I touched on the need to have APIs for managing storage in cloud environments.  In this post, I’ll talk about how the way in which storage is deployed in cloud environments has to change. For the last 10 years, the advent of Storage Area Networks (SANs) has created a storage-centric view of the world with storage at the centre and the “planets” – networking and servers – wrapped around it like some pre-Copernican view of the universe.  Over time, SANs have evolved to be ever bigger, with some organisations deploying huge fibre channel fabrics.  As we’ve seen ... (more)

August Storage Announcements – Pure Storage

August seems to have been the month for a huge raft of storage-related announcements and I’m still getting to grips with the detail, after being away on holiday for the whole month.  As I start to pick out the news and make sense of how it fits into the storage landscape, I thought I’d start with a few straightforward ones to ease me back into things gently. Pure Storage Pure Storage FlashArrays were originally Fibre Channel only devices (see my review after TFD#8 last year).  In today’s unified world, that could be seen as somewhat limiting, so Pure have announced support for iSC... (more)