EC2 Virtualization Options and the Move from PV to HVM

aws icon ec2aws icon ec2aws ec2 cloud[Guest Post by Uri Wolloch, Co-Founder and CTO at N2Ws]

This article discusses the recent change that has taken place with AWS EC2 virtualization options. We will look into AWS’ virtualization backend and what it means for AWS users in general and N2WS, in particular. For a bit of background, up until recently, the AWS cloud supported a virtualization type called Hardware Virtual Machine (HVM) for Windows instances as well as ParaVirtualization (PV) for Linux instances. While these are both Xen technologies, they are slightly different. PV requires an added layer of software (i.e. kernel) between the designated hardware and virtual machines, and HVM runs directly on hardware and can make use of special hardware extensions.

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ClickSoftware – Great Case of an AWS Cloud Adoption: Part 1, Operations

imageOver the last year I had endless conversations with companies that strive to adopt the cloud – specifically the Amazon cloud. Of those I met, I can say that ClickSoftware is one of the leading traditional ISVs that managed to adopt the cloud. The Amazon cloud is with no doubt the most advanced cloud computing facility, leading the market. In my previous job I was involved in the ClickSoftware cloud initiative, from decision making with regards to Amazon cloud all the way to taking the initial steps to educate and support the company’s different parties in providing an On-Demand SaaS offering.
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Cloud Security Management – Overview and Challenges

What’s your first priority cloud security concern ?
From an attacker’s perspective, cloud providers aggregate access to many victims’ data into a single point of entry. As the cloud environments become more and more popular, they will increasingly become the focus of attacks. Some organizations think that liability can be outsourced, but no, it cannot! This presentation will answer questions such as what are the key security challenges for new cloud comers. What are the options and how you can start with a safe cloud deployment?
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Amazon Cloud and the Enterprise – Is it a love story? (Free Infographic Included)

As befitting any great online vendor, Amazon cloud product guys listen carefully to their market targets and ensure fast implementation and delivery to satisfy their needs. It is clear that Amazon cloud is eager to conquer the enterprise market, as I already mentioned in my past post, “Amazon AWS is the Cloud (for now anyway)”.
Cloud Reserved Capcity Card
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Amazon AWS is the Cloud (for now anyway)

Every day I talk, write and comment about the “Cloud”. Every time I mention the cloud I try to make sure that I add the name of the relevant cloud operator, “Rackspace Cloud, “MS Cloud” (Azure) or “HP Cloud”. Somehow all of these cloud titles don’t right to me – it seems the only title that really works for me is the “Amazon Cloud”. In this post, I will elaborate about the competition in the IaaS market and I will explain further why I think this is so.
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Amazon Outage: Is it a story of a conspiracy?

Last week my Twitter blinked massively by news magazines and cloud blogers that reported on the extraordinary news: “The cloud computing crashed”. Amazon AWS had suffered a major outage in its US East facility. This was the worst in cloud computing’s and Amazon’s history. This failure affected major sites such as Heroku, Reddit, Foursquare, Quora and many more well-known internet services hosted on EC2. From what I read, it seems that automated processes began replicating a large number of EBS volumes, which harmed EBS performance and availability across multiple availability zones in north Virginia region.

“..However badly they’ve been affected, providers have sung Amazon’s praises in recognition of how much it’s helped them run a powerful infrastructure at lower cost and effort.” Seven lessons to learn from Amazon’s outage (ZDNet SaaS Blog)

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