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Chris Evans

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Top Stories by Chris Evans

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, with processing assigned EC2 Compute Units (ECUs).  You can find more details here, but summarizing, an ECU is approximately the power of a 1.2Ghz 2007 Intel Xeon Processor.  Memory is a more tangible quantity and simply expressed in megabytes or Gigabytes.  Storage references purely disk c... (more)

Storage Old, New and Past Due?

It’s been an interesting day of contrasts in the world of storage, one that shows storage is a diverse and wide ranging segment of IT. The Old Tape has been part of the discussion on the twitterverse and despite everyone’s best attempts, is not dead yet.  Tape and backup may not be seen as cool  - but data protection is an essential requirement of sustainable data management and tape still provides the one of the most cost effective methods of data protection and of course archive.  This has happened because tape continues to innovate.  Tape drive speeds and media capacities con... (more)

Managing Risk in IT

The IT debacle at RBS has highlighted the dependency large financial organisations (and other companies) have on their IT infrastructure.  From what has leaked out into the press, the RBS issue relates to a piece of software called CA-7, used for mainframe batch job scheduling. When I first started in IT in 1987, CA-7 (and it’s sister product CA-1, used for tape management) were already legacy technology.  From memory, I believe CA acquired the products from another company; both had archaic configuration processes and poor documentation.  However they did work and were reasonabl... (more)

Podcast Interview with Mike Kazar, CTO Avere Systems

Before I went on holiday I managed to have a chat with Mike Kazar, Chief Technology Officer for and co-founder of Avere Systems.  Prior to founding Avere, Mike worked at Netapp after founding Spinnaker, which was acquired by Netapp in 2003 and was developed into Data ONTAP Cluster-mode.  Mike was recently awarded the IEEE Johnson Award for Lifetime Contributions to Data Storage, an award that has been previously presented to such notable luminaries as Moshe Yanai (EMC’s Symmetrix and IBM’s XIV inventor). In the interview I get to talk about the early days of his career, including ... (more)

Cloud: Cloud Backup /= Cloud Archiving

This is a guest post from Patrick Jobin at StoragePipe Solutions, a provider of world-class corporate data protection solutions including online backup and recovery, electronic archiving and business continuity. Despite its mainstream acceptance, Software-as-a-Service is still a very new field.  And when it comes to data protection in the cloud, there are still many terms that are not yet well-understood by all. For this reason, “online archiving” and “online backup” are often believed to be the same, although they are – in fact – quite different from each other. Online backup is... (more)