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Chris Evans

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Top Stories by Chris Evans

It’s hard to believe that over three years ago I asked a question on where hybrid drive technology had reached.  I was thinking of the Enterprise market at the time and as far as I am aware, at this stage, no Enterprise storage array manufacturers have yet integrated these devices into their products.  At the consumer level, of course there are products out there, most well known being Seagate’s Momentus XT drive.  But there is another approach to speeding up the hard drive and that’s to use SSD as a cache but in a slightly different manner.  A good example of this is the OCZ Synapse SSD drive which uses software to provide the cache intelligence. Imagine a typical hybrid drive.  Data written to and from the drive will be in blocks matching the solid state component, let’s say 4K blocks.  There aren’t many alternatives to cache management other than to use Least Re... (more)

How Viable Is Cloud Storage?

This week has seen announcements from two companies I’ve been interested in and following for some time. Nasuni Nasuni makes a storage appliance that stores all of a customer’s data in “the cloud”.  It’s available either as a physical device (effectively a server running their software) or as a virtual machine.  What makes their product interesting is that both the data and filer configuration reside on the cloud and can be reconstituted anywhere if for some reason the filer is lost (for example if the appliance is down or power was lost).  The only piece of data the customer ne... (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)

Amazon Delivers Cloud Archive Storage with Glacier

At the end of August 2012, Amazon Web Services released their latest service offering – a long-term archive service called Glacier.  As a complement to their existing active data access service S3, Glacier provides long term storage for “cold” data – information that has to be retained for a long time but doesn’t require frequent access. What Exactly is Glacier? Many organisations need to retain data in archive format for extended periods of time.  This is for regulatory or compliance purposes or may simply be part of their normal business process.  Good examples are medical, h... (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)