Blog

XenServer Pool: How to Force Add a Host

The addition of a new host server installed with the free XenServer Enterprise 5.5 hypervisor, even if it can be trivial using the XenCenter graphical interface It can easily generate errors even if the host machines are practically the same, of the same brand and model, this is because to allow a painless XenMotion migration, […]

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Cloud: Windows Azure – SQL Data Service

Microsoft’s Cloud Computing platform, which is of the Application/Platform (Saas/PaaS) type, has an interesting service, SQL Data Service (SDS), represents a cloud-based relational database developed with SQL Server 2008 technology of which I recommend to see the presentation in silverlight. Through SDS it is possible to easily use an RDBMS relational database (such as SQL […]

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NASA : Launches the Nebula Space Cloud platform

NASA is launching its cloud computing platform called NEBULA in beta, a platform that integrates a set of open-source components into a single self-service platform. From the architecture diagram you can see database elements such as MySQL Cluster, storage network clustering solution such as the Lustre File System, elements of the Eucalyptus cloud system, Trac, […]

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Cloud Computing : Scalability- True or False

Despite the draft definition of NIST, National Institute of Standards and Technology, we continue to talk about Cloud Computing as if it were the technology capable of doing everything. One of these much-mentioned features is the alleged innate scalability of the technology, so let’s start with a proper understanding of scalability first: We can define […]

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vCPU and vSMP – Hypervisor benchmarks

Some time ago in the in-depth analysis of hypervisor performance we found ourselves faced with a native problem of virtual Simmetric MultiProcessing (vSMP) which would be a methodology of Simmetric MultiProcessing (SMP), thanks to which we can assign more than one virtual CPU (vCPU) to a virtual machine. This feature would allow you to give […]

Blog Eco Friendly

GreenIT: Combining SUN-MySQL, Performance and Ecology

Months ago we underlined at the bottom of the article: http://blog.vmengine.net/2008/05/30/marten-mickos-ceo-di-mysql-a-la-sapienza-di-roma/ related to the Roman conference of MySQL at Sapienza, about the future possibilities of creating performance using the new native ZFS filesystem of Solaris and the MySQL database engine. Well something was born, thanks to some features of the phenomenal ZFS filesystem and the […]

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