Archive | Cloud Computing

All blog posts under this category are related to Cloud Computing.

How I see the future of Hybrid Cloud

By admin on April 3, 2013 in Cloud Computing

I have been thinking about writing this article on Hybrid Cloud for quite some time, but with everything going on at VMware, article writing time is becoming limited. Recently VMware announced the new Hybrid vCloud service and I wanted to take a look at the whole “Hybrid cloud model” and what I think (without my VMware hat on) it should actually be/do/mean. Lets start by looking at what the definition of Hybrid Cloud is. This article from searchcloudcomputing certainly sums up VMware’s and most peoples view. A hybrid cloud is a composition of at least one private cloud and at least one public cloud. A hybrid cloud is typically offered in one of two ways: a vendor has a private cloud and forms a partnership with a public cloud provider, or a public cloud provider forms a partnership with a vendor that provides private cloud platforms. My favourite way of describing […]

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vCloud Director and SE Sparse Disks

By admin on April 2, 2013 in Cloud Computing

So the other day, a bunch of us were asked the question: “A customer of ours has asked if the partial writes issue with linked clones that was found in View and fixed in 5.2 with SE sparse disks has also been fixed in vCloud Director Fast Provisioning with SE sparse disks” Cormac Hogan wrote a really great article on SE Sparse Disks, which can be read by clicking here. This is possibly the most exciting new storage feature in the vSphere 5.1 release. Space Efficient Sparse Virtual Disks (or SE Sparse Disks for short) were designed to alleviate two issues. Let’s describe these issues first of all. Problem Statement #1 – Let’s take a Guest OS running on a linked clone (View desktop if you will), and this Guest OS issues a 4KB write. vmfsSparse disk (which is the format used by traditional linked clones) has a block allocation […]

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vCloud Disaster Recovery White paper published

By admin on March 28, 2013 in Cloud Computing

Alan Renouf and Aidan Dalgleish have written a white paper on how to automate the failover of your vCloud environment. This case study is a really interesting read, with some really cool concepts in it. Definite recommended reading for anyone looking to automate the disaster recovery of there vCloud infrastructure and provide business continuity. Click here to read the whitepaper VMware vCloud Director® enables enterprise organizations to build secure private clouds that dramatically increase datacenter efficiency and business agility. Coupled with VMware vSphere®, vCloud Director delivers cloud computing for existing datacenters by pooling vSphere virtual resources and delivering them to users as catalog-based services. It helps users build agile infrastructure-as-a-service (IaaS) cloud environments that greatly accelerate the time to market for applications and the responsiveness of IT organizations. Resiliency is a key aspect of any infrastructure, it is even more important in IaaS solutions. This technical paper was developed to […]

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vCloud vApp Design and Use Case – Part 3

By admin on March 26, 2013 in Cloud Computing

This article is part 3 of my vCloud vApp design considerations and use cases definition. Click here to read Part 1 and Part 2 In this follow on article we will look at some more of the use cases for vApp’s and what type of vCloud Director networking they will use. Use Case 3 – vApp Network (Routed) You would typically use this configuration where there is a requirement for connectivity between multiple vApps but in addition a requirement to provide controlled segregation between them. In this example multiple vApps of the same configuration can be deployed without risk of conflict due to the firewall and NAT capability being introduced. vApps will have connectivity to an isolated Organization network for inter vApp connectivity, but there is no external connectivity available and all network traffic within the Organization is isolated at Layer 2. If you think of a training environment, where […]

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vCloud vApp Design and Use Case – Part 2

By admin on March 14, 2013 in Cloud Computing

This article is part 2 of my vCloud vApp design considerations and use cases definition. Part 1 can be read by clicking here. In this article we will look at the logical design of vApp use cases. I have spoke about these in the past in my vCloud Director Networking 101 post, but never really spoke about the specific use case. Use Case 1 – vApp Network Isolated This use case would primarily be used for development and test scenarios, where there is a requirement for vApps to be completely isolated. In this scenario multiple vApps of the same configuration can be deployed without risk of conflict, since there is no external connectivity available and all network traffic within the vApp is isolated at Layer 2. The characteristics of these vApps are: VMs are connected together on isolated vApp networks No connectivity between multiple vApps or to organization networks Same configuration can […]

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