Open Nebula Training in Hyderabad

Why choose OpenNebula based on its monitoring?

• When we use the OpenNebula CLI (or web interface), we can track activities whenever we want.To this end, we have a central directory service through which we can add new users, while they may have rights, individually considered. At OpenNebula, it’s easy to set up new virtual systems, target the right users and groups, and of course manage systems.
• Permanent Availability: OpenNebula does not deal only with initial procurement. In addition, it has high availability of its cloud environment, while that availability is much better than other cloud solutions. Now, if we want to increase availability, we can configure OpenNebula’s central services, although it is not absolutely necessary. All systems continue to operate in their original state, and are automatically included in the restored availability of control processes.
• Easy remote access: In virtual environments, users do not have the ability to access the system, in cases where there are operational or device problems. Well, OpenNebula provides us with an easy solution: with the browser we can access the host system console, by means of an integrated VNC server.
• Comprehensive monitoring and control:All host and guest systems can be monitored permanently in OpenNebula, keeping the host panels and VM constantly up to date. However, depending on how we configure it, a virtual machine must be restarted in the event of a host system failure or when migrating to a different system. But, if we use a data warehouse with parallel access, we can move the systems while they are running to a different hardware. In addition, it is possible to minimize the maintenance window while completely avoiding it if desired.
• Open standards: OpenNebula is 100% open source, under the Apache license. As such, it provides security, scalability and, also, freedom, being a reliable solution in the cloud without presenting blockades of providers, which positively results in considerable support and follow-up costs. All this, because OpenNebula supports open standards like OCCI and a generous amount of other open architectures. 

OpenNebula-Virtualization and Cloud Solutions

• Virtualization has opened up avenues for new resource management techniques within the data center. Probably, the most important characteristic is its ability to dynamically shape a given hardware infrastructure to support different services with varying workloads.
• Therefore, effectively decoupling the management of the service (for example a web server or a computing cluster) from the management of the infrastructure (e.g. the resources allocated to each service or the interconnection network).
• A key component in this scenario is the virtual machine manager. A VM manager is responsible for the efficient management of the virtual infrastructure as a whole, by providing basic functionality for the deployment, control and monitoring of VMs on a distributed pool of resources.
• Usually, these VM managers also offer high availability capabilities and scheduling policies for VM placement and physical resource selection. Taking advantage of the underlying virtualization technologies and according to a set of predefined policies, the VM manager is able to adapt the physical infrastructure to the services it supports and their current load.
• This adaptation usually involves the deployment of new VMs or the migration of running VMs to optimize their placement.
• The dsa-research groupat the Universidad Complutense de Madrid has released under the terms of the Apache License, Version 2.0, the first stable version of the OpenNebula Virtual Infrastructure Engine.
• OpenNebula enables the dynamic allocation of virtual machines on a pool of physical resources, so extending the benefits of existing virtualization platforms from a single physical resource to a pool of resources, decoupling the server not only from the physical infrastructure but also from the physical location.
• OpenNebula is a component being enhanced within the context of the RESERVOIR European Project.
• The new VM manger differentiates from existing VM managers in its highly modular and open architecture designed to meet the requirements of cluster administrators. OpenNebula 1.0 supports Xen and KVM virtualization platforms to provide several features and capabilities for VM dynamic management, such as centralized management, efficient resource management, powerful API and CLI interfaces for monitoring and controlling VMs and physical resources, fault tolerant design
• Two of the outstanding new features are its support for advance reservation leases and on-demand access to remote cloud provider

Support for Advance Reservation Leases

• It open source lease management architecture that OpenNebula can use as a scheduling backend. Haizea uses leases as a fundamental resource provisioning abstraction, and implements those leases as virtual machines, taking into account the overhead of using virtual machines (e.g., deploying a disk image for a VM) when scheduling leases.
• Using OpenNebula with Haizea allows resource providers to lease their resources, using potentially complex lease terms, instead of only allowing users to request VMs that must start immediately.

Support to Access on-Demand to Amazon EC2 resources

• Recently, virtualization has also brought about a new utility computing model, called cloud computing, for the on-demand provision of virtualized resources as a service.
• The Amazon Elastic Compute Cloud is probably the best example of this new paradigm for the elastic capacity providing. Thanks to virtualization, the clouds can be used efficiently to supplement local capacity with outsourced resources.
• The joint use of these two technologies, VM managers and clouds, will change arguably the structure and economics of current data centers.
• OpenNebula provides support to access Amazon EC2 resources to supplement local resources with cloud resources to satisfy peak or fluctuating demands.

Scale-out of Computing Clusters with OpenNebula and Amazon EC2

• As use case to illustrate the new capabilities provided by OpenNebula, the release includes documentationabout the application of this new paradigm (i.e. the combination of VM managers and cloud computing) to a computing cluster, a typical data center service.
• The use of a new virtualization layer between the computing cluster and the physical infrastructure extends the classical benefits of VMs to the computing cluster, so providing cluster consolidation, cluster partitioning and support for heterogeneous workloads.
• Moreover, the integration of the cloud in this layer allows the cluster to grow on-demand with additional computational resources to satisfy peak demands.

OpenNebula offers a good number of interfaces, which can be used to interact with the functionality offered, either to manage virtual or physical resources.

The modular and extensible architecture is, with customizable add-ons to integrate with any third-party data center infrastructure platform for monitoring, storage, virtualization, authentication, cloud burst, and more. We are referring more specifically to:

• One Flow API: to create, control and monitormulti-tiered services or applications that consist of interconnected virtual machines. 
• Hook Manager: to activate the administration scripts, when changing the current status of the virtual machine.
• API for integration: This API is used for integration with higher level tools, such as self-service portals and billing. It also provides all the OpenNebula kernel functionality through links to Ruby and Java and also to the XMLRPC API.
• Sunstone(server): routes and also custom tabs to extend this same server, of course.