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Chris Evans

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Top Stories by Chris Evans

We are regularly told that checking our own bodies for signs of change is a good thing.  Early diagnosis of disease gives more of a fighting chance of curing the problem.  So, in the IT world, where we assume all of our backups have been taken successfully, how often should we be checking the results and ensuring the backup will work on the fateful day we need to do a restore?  This question was posed by Federica Monsone on Twitter this week.  Here’s an attempt to provide an answer. First of all, let’s consider the whole point of taking backups.  Excluding the inappropriate use of backup for archiving, the backup process is there to ensure you can maintain continuous access to your data in the event of unforseen circumstances.  Usually (but not exclusively) these are data loss due to equipment or power failure, data corruption (whether software bug or malicious), a... (more)

Two Weeks in Review

It’s been a busy couple of weeks for me, with two lots of travelling in different directions.  Last week I was in Barcelona at the HP Converged Infrastructure (CI)Event and the week previously at HDS’s launch of the new VSP (Virtual Storage Platform).  Both HP and HDS released their new platform at the same time (HP as the P9500, HDS as the VSP) and both originate from Hitachi in Japan.  As is usual with these releases, both companies claim to be integral to the product’s development and perhaps they were in different areas.  Lots of other things have been happening too. The Ris... (more)

Is the Performance of All Cloud Servers the Same?

One of the benefits of delivering Infrastructure as a Service (IaaS) through the cloud is an abstraction from the underlying hardware delivering the service.  There’s no requirement to understand what technology is being used to deliver, for example, cloud servers.  The specification of a cloud-based server is based on a few simple metrics, CPU, memory and disk space. CPU or processor power is described by most vendors in terms of cores, which translate to some abstract definition of physical computing power.  Only Amazon Web Services (AWS) reference physical CPU architecture, w... (more)

HP Cloud Now Available In Beta – A First Look

HP have joined the Infrastructure as a Service (IaaS) market and released their HP Cloud service in public beta.  Here’s the announcement press release.  The services on offer are: Available Now as Public Beta Compute – on-demand server instances. Cloud Object Storage – object-based storage using RESTful APIs. Content Delivery Network – local distribution of web content. Still in Private Beta Cloud Block Storage – persistent data for compute images Relational Database for MySQL – managed cloud databases There’s also the HP Identity Service for managing key & token access managem... (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)