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Ignacio M. Llorente

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Top Stories by Ignacio M. Llorente

Building Clouds on VMware vSphere This case study assumes you want to build a private cloud on top of an existing virtualized datacenter composed of multiple hosts running vSphere and managed by one or several instances of vCenter. It is understood that you do not want to abandon your investment in VMware by retooling the entire stack. You want to continue managing your infrastructure with already familiar and powerful VMware tools, such as vSphere and vCenter Operations Manager. Your goal is to create a self-service cloud environment on top of your vSphere infrastructure to provide your users with a simple cloud interface featuring elasticity, multi-tenancy and self-service provisioning. This post compares the pricing of two different approaches to build this cloud environment, the deployment of vOneCloud (an open-source replacement for vCloud based on OpenNebula) ... (more)

OpenNebula 4.8 Beta Released

OpenNebula has just announced the beta release of its version 4.8, code named Lemon Slice, which brings significant improvements in different aspects. Sticking with its vision of bringing simplicity to cloud management, this release comes with improvements in the recently added Cloud View portal, designed for end users. One significant advantage of the new portal is the ability to control flows, groups of interconnected Virtual Machines that conform a service. Based on this Cloud View, a Virtual Datacenter administrators view has been included (VDCAdmin View), which enables VDC ... (more)

Interfacing Private Clouds with the libvirt Virtualization API

In my post "Interfaces for Private and Public Cloud Computing", I briefly described the main differences between public and private cloud computing from the perspective of their different application scope and interfaces. My position was that a private cloud interface should provide rich enough semantics, far beyond of that provided by public clouds (such as Amazon EC2 APIs), to ease the integration of the distributed virtual infrastructure in the data-center management stack, including user and administration support. Such interface should provide additional functionality for vi... (more)

Federating Multiple Cloud Instances with OpenNebula Zones

This is the second article covering the functionality provided by the new OpenNebula Zones (oZones) component available in the third major release of OpenNebula. In a previous article, we described its Virtual Data Center (VDC) functionality that is helping many IT organizations make the transition toward the next generation of cloud infrastructures supporting multiple fully-isolated VDCs with advanced multi-tenancy. This article elaborates on its support for building multi-tier cloud architectures consisting of multiple OpenNebula Zones. What is an OpenNebula Zone? An OpenNebul... (more)

OpenNebula 4.2 Beta Released

The OpenNebula Project has just announced the beta release of OpenNebula 4.2, the first update of the fourth series of its widely deployed OpenNebula cloud management platform, a fully open-source solution for data center management and enterprise cloud computing. With a sysadmin-centric approach, OpenNebula is the open operating system of choice in the converged data centre, combining a powerful virtualization manager that supports traditional IT features such as fault tolerance and failover, with the dynamic provisioning, elasticity and multi-tenancy of the enterprise cloud. A... (more)