Tech industry experts are saying that tech jobs with desktop support in the Information Technology department will be declining sharply thanks to cloud computing. Makes tons of sense considering the advantages of cloud computing: easier updates, synched and secured files.
This will mean that more IT people will get more into business analysis as more companies will need to know which apps will work best not only for the employees but for the business itself. IT professionals looking to transition into one of these new, more business-orientated roles will also face competition not just from other techies, but from business analysts, programmers, database engineers and user interface designers who’ve trained to fill these positions as well as those who’ve amassed experience over the years. However, Rivard says that there is an older generation of IT guys that are working towards retirement and will leave many open positions that will slow down the eventual turnover to cloud computing. “You’ve got the baby boomer retirement that’s going to take a significant part of legacy staff off the map. About LAZYTECHGUYSLazyTechGuys' is an online tech site that brings fresh and irreverent perspective to the ever changing landscape of technology. Design of a private cloud solution based on a distributed monitoring algorithm: Application to IaaS services. The public cloud is where the service is delivered by a third-party cloud provider to private enterprises or individuals. For Infrastructure as a Service private cloud platforms purpose, there are several open-source existing solutions (Eucalyptus, OpenNebula, OpenStack, Nimbus, etc.) which provide the system as common software to deploy and use. The main technologies that contribute to cloud computing solutions are: virtualization and Web technologies.
Virtualization is concerned with all techniques used to run multiple operating systems on a single physical machine. Cloud computing services are normally exposed to the end-users as Web services following the industry standards such as WSDL (Web Services Description Language), UDDI (Universal Description Discovery and Integration).
The same problem occurs at any cluster controller where access to the information of this cluster by the cloud controller should become impossible in case of a failure of that cluster controller. The election scheme proposed in our solution is performed by using five privileges values ranged from 0, 1, 2, 3 to 4. After the initialization process, each node of the system should work using its privilege value.
The implementation of our solution lead to the development of two applications: a distributed application written in java for the monitoring of services and a Web application for the administration and the use of IaaS services.
In this work, we have proposed a new private cloud solution based on a distributed monitoring algorithm. This is neither a question of one being better than the other, they simply represent different approaches.
Both projects release code under the liberal Apache 2.0 license, follow a transparent development process with a public roadmap, and have the same license agreement for new contributions.
Governance Model. The main difference between both projects is in their governance model, mainly for the definition of the architecture, the release cycle and the roadmap.
Roadmap Definition. OpenNebula roadmap is completely driven by users needs with features that meet real demands, and not features that result from an agreement among the different vendors participating in the management board of the project. In our view, OpenStack is governed by a consortium of competitors, trying to create its own product or to provide compatibility for its particular device. Traditionally, multi-vendor industrial consortiums are the best approach to commoditize a core component in the long term, mainly when there exists solid base software, but not to bring to market a complete enterprise-ready solution from scratch in the short term.
We believe that a centralized model with a strong individual leadership is the best way to quickly build a production-ready enterprise-class open-source product, mainly in the early stages of a fast growing market. The above reasons are the foundation of this claim: OpenNebula is made for users by users, OpenStack is made for vendors by vendors. Although OpenStack now tries to be everything for everyone, it was created as an open-source effort to compete against Amazon Web Services (AWS). OpenNebula is a single enterprise-ready open-source product, easy to install and operate, with a single installing and updating process, a one-stop community and a long-term commercial support. On the other hand, OpenStack comprises many subprojects with different levels maturity that require complex integration to achieve a functional cloud infrastructure. So the organization that chooses OpenStack is actually using proprietary software based on OpenStack, and is locked into that specific distribution given that the vendor only supports its own stack, not the community version.
However OpenStack penetration in the market is relatively small compared with the investment made by vendors and VCs.
Don’t get us wrong, OpenStack is an open-source project with excellent developers, and some of its components are great from a technology point of view.
I agree that there are too many components and too many contributors, each with their own agenda, for OpenStack NOT to collapse under the weight of its own beaurucratic governing body.
Shawn, if you want to try it without installing you can use one of our Virtual Sandboxes [1].
Also the Quick Start Guides in the tryout page can give you an idea how easy is installing OpenNebula. Why is this happening? A large majority of  companies and government agencies will rely on the cloud for more than half of their IT services by 2020, according to Gartner’s 2011 CIO Agenda Survey. Is their time up? John Rivard,  Gartner research director said that, while there will still be roles for people who want to specialize in general IT support, those professionals are going to need a grasp of corporate demands “or the business will bypass them”.
Currently, there are development teams that refine use cases and requirements to build the next version of the web app.
Also I don’t think we’re producing enough graduates on the technology or the business side, so I expect there is going to be a competition for the talent,” says Rivard. And if you are, is your company or business slowly moving towards the cloud computing or do you foresee less companies making the leap to the cloud? He has worked the corporate ladder for many years as a user interface designer, DBA, web developer and business analyst. Our original content is formatted in conversational media and provides answers to those who've been spiritually crippled by the crashing of their favorite devices or the burden of providing information to the technically challenged. Cloud computing has emerged in recent years as a new model of administration and use of computing resources. This allows cloud consumers to leave the administration of their computing systems to external providers. The virtualization technologies used in cloud computing makes it possible to get better management of available resources.
A key common point to all these solutions is the centralized monitoring architecture needed to deliver services.
Moreover, internal cloud components inter-communication is made possible using Web service technologies such as XML-RPC (Extensible Markup Language), REST (Representational State Transfer) or SOAP (Simple Object Access Protocol).
Most of them use a tree representation of the different nodes on the network in which a single head-node, namely the CLC, takes the entire advantage to monitor all the system. One of the solutions to solve this problem is to elect one CC from among the different CCs on the network of which the role will consist in overseeing the current CLC.
The running process on each physical node on the network should then have five distinct states.
When a CLC failure occurs, the elected CC will dynamically modify its privilege value from 3 to 4 making it transit from CC to CLC state. Its main objective is to take into account the fault-tolerance in the system for the high availability of IaaS services.


In order to test the ability of our solution to ensure high availability and fault-tolerance in a private cloud environment, we have executed the application on three host nodes and executed our Web application inside a virtual machine created using Xen. Inoltre, Google Cloud implementa ora nuove policy per la memorizzazione dei dati e un sistema di upload paralleloGoogle cloud si arricchisce di importanti novita per gli sviluppatori. There is no single answer because open-source projects and technologies present several dimensions. Let us compare both open source options based on the following criteria: internal organization, governance model, roadmap definition, contributor profile, target user, product, and market competition. While OpenStack is controlled by a Foundation driven by vendors, OpenNebula follows a centralized, “Benevolent Dictator” approach.
The mixture of vendor motivations makes it increasingly difficult for a foundation to meet both the needs of the project and the monetization goals of each vendor. In these situations the addition of more developers and members slows the project down, and the well-known Brooks law (The Mythical Man-Month) applies both at development and governance levels. Please do not pin this on us being control freaks; we do so because we want to create a great product and we want to take responsibility for the entire product and need to be responsive to our users. This may seem like a daring statement, but we have been following this path for years, and haven’t observed anything that proves this wrong.
Therefore while OpenStack is addressing the Infrastructure Provision segment; OpenNebula better meets the needs of Enterprise Cloud Computing.
Any organization can use the open-source distribution to build a production cloud, and receive best-effort support through the community mailing list.
A growing number of components and subprojects is making even more difficult their integration and coordination, and the delivery of a single coherent solution. These enterprise-grade distributions incorporate different versions of the OpenStack components with extended features, custom enhancements and integrations that may erode their compatibility and interoperability. Just started looking into OpenNebula as a PaaS option for our cloud infrastructure and so far it looks great. They come with OpenNebula already installed and configured so you can check out if it fits your needs without having to install it in bare metal.
From a product perspective I agree with you that the best way to choose is by checking which better meets your specific needs. According to the National Institute of Standard and Technology, cloud computing is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources that can be rapidly provisioned and released with minimal management effort or provider interaction. It introduces many advantages such as great mobility and high availability of resources accessed through Internet on-demand and in devices independent manner. Eucalyptus cloud based architecture shows the actual centralization of private cloud system (Figure 1.2).
This way, an occurring failure at this node should result in a breaking of the services rendered to the cloud consumers.
The same technique should also be applied to each cluster of the system where a node controller should be elected to supervise the actual leader of that cluster. This process will result in the election of a new CC from among the remaining CCs on the network.
This Virtual machine is held by the initial node selected as CLC and the other two nodes are added to the system as cluster controllers.
It supports fault-tolerance and allows the continuity of the services in case of any node failure.
Obviously this comparison is biased (no way around that), but we have tried to be as neutral as possible. OpenNebula is managed by a single organization that focuses on the interest of the project and strategically leads it to ensure that meets users needs. Since we started OpenNebula six years ago, we wanted users to have a voice in the project and not to privilege contributors over users. It is also interesting to remark that many of these vendors are also offering commercial products that directly compete with OpenStack components.
OpenStack is reaching a point where the consensus based approach has limited the competitiveness of the project. Benevolent dictator governance is the model followed by other successful open-source projects like Android or Linux Kernel, and, in our view, it is the most effective way to focus on engineering quality, to prioritize user needs, and also to ensure long term support. Since both tools enable infrastructure cloud computing, there is some overlap in the features they provide. Additionally, any organization can purchase commercial support directly from the developers. No update path is provided if you want to install a new version, and there is not commercial support.
Moreover many of them include proprietary components and exhibit significant differences in the implementation of critical underlying functionality. In other words, these distributions do not offer the main benefits of open-source: low-cost, no lock-in, flexibility and interoperability. These vendor “stacks” and cloud providers will continue marketing “OpenStack” as the primary and, in most cases only, differentiator. Only one of the OpenStack distributions will gain critical mass on public and private clouds.
I just saw a keynote at LOPSA-East 2014 about OpenStack & it blew my mind being a Sysadmin at a small site. Also it looks like it tries to compare OpenStack to Windows and OpenNebula to Linux in clouds world, what is not entirely true.
However our experience is that companies planning to build large-scale production-ready clouds with vanilla OpenStack have many problems. For IBM, it is both a new computing working mode, whereby data, applications and computing resources are dynamically made available to users; and an administration mode which allows the management of a large number of virtualized resources that can be installed on multiple sites in order to present them as unique.
IaaS layer provides cloud consumers with IT (Information Technology) Infrastructure such as (processing, storage, networks and other fundamental computing resources).
For the universities, it is used to provide students with computing resources for test and e-learning activities through dynamic virtual machine attribution.
The solution includes three essentials nodes for the monitoring of the services: the cloud controller (CLC), the cluster controller CC and the node controller NC. Many solutions such as Xen, KVM, VMware or Hyper-V allow the use of virtualization through different technologies: full virtualization, para-virtualization and the hypervisor system.
Then, when the cloud controller, eventually, will come to fail, the elected CC node would detect this failure and changes its own state to get in charge of the functions of the lost CLC.
When a CC failure occurs, the elected NC will dynamically change its privilege value from 1 to 2 making it transit from NC to CC state. The first node added to the system has been affected the value 3 as its privilege value and the second node has got 2 as its privilege value. However, its infancy in the domain of cloud computing requires important effort to make for its evolution. In pratica, con la funzione di Regional Buckets gli amministratori IT avranno l’opportunita di selezionare l’infrastruttura su cui preferiscono memorizzare i dati destinati allo strorage su Google Cloud.
While OpenNebula is an open-source effort focused on user needs, OpenStack is a vendor-driven effort.


However, each cloud model presents different architectural constraints and requires specialized interfaces, management capabilities and integration support.
The important aspect is that we do not deliver enterprise editions of the software, we commercially support the community software. Any organization interested in using OpenStack, and requiring commercial support and enterprise maturity, is recommended (by the vendors running the project) to deploy any of the several enterprise distributions. OpenNebula and OpenStack will coexist and, in some cases, work together in a broad open cloud ecosystem. This introduces many advantages such as a great degree of flexibility, a simplified way for computing resources sharing, etc. The PaaS level is made of a set of tools that provide full development and execution platforms for cloud users. Projects such as VCL (Virtual Computing Laboratory) of the North Carolina State University and CloudIA (Cloud Infrastructure and Application) of Hochschule Furtwangen University (HFU) show concrete implementations of private cloud for e-learning. The virtualization offers many advantages such as virtual machine migration which consists of transferring a virtual machine files from a physical host to a destination host.
Similarly, in each cluster, the elected node controller (NC) will be called to get in charge of the role of its leader when this later node will come to fail. This later process will also result in the election of a new NC from among the remaining NCs of that cluster. Then the virtual machine hold by the actual cloud controller has been replicated on the elected cluster controller node.
OpenNebula and OpenStack serve different needs and implement completely different philosophies. In the meantime, we will continue with our focus on solving real user needs in innovative ways, and getting our users involved in a fully vendor-agnostic project. That is the sales pitch used the vendors and companies offering enterprise-grade distributions. Database, Business Rules, etc.) for developers, they will need the infrastructure to build it on.
Several cloud solutions, either from proprietary public or open-source private cloud, have then been developed in order to facilitate access to this new economical computing model.
When we suddenly removed the CLC from the Ethernet switch used to establish the private network, the elected CC automatically changed its state by modifying its value from 3 to 4, then started the virtual machine hosting the Web application and finally elected the remaining node on the network as the new elected CC node. Then, it is critical these solutions meet security, fault-tolerance and high availability issues.
Sun et al (2011) provides an overview of the different components of theses services’ enabling architecture. Cluster controllers are the intermediary nodes used by the CLC to collect information over the entire network.
About the public cloud solution, security issues (Subashini and Kavitha, 2011) and vendor lock-in (Galan et al, 2009) are the main obstacles limiting their adoption.
The system is made of three major components: the administration center that allows users to access resources through a Web portal by using protocol such as VNC, RDP or SSH, the cloud resources center providing physical resources to be used as host nodes for the users’ virtual machines and finally the cloud storage resource center which is composed by the physical storage resources used to host the virtual machines templates which are transferred to the cloud resource center when creating new virtual machines for users. It is a software system that allows the execution of multiple virtual guest operating systems simultaneously on a single physical machine.
It is based on a distributed monitoring algorithm which provides it with the ability to dynamically reconfigure itself for the services continuity.
Concerning the private cloud solutions, Nurmi et al (2008), Sempolinski and Thain (2010), and Alrwais, (2011) show that all current solutions are based on centralized monitoring architectures, which may result in the breaking of the services in case of failure of the system’s central node (Naing, 2012). The role of the different NCs is to monitor the single physical computing node on which they are installed.
Naing (2012) proposed a similar solution through a fault-tolerance management framework that allows a dynamical rebuilding of certain critical nodes of the system. Then, in order to contribute to solve this problem, and help computer engineering and maintenance companies such as Logisoft-Benin to have high available and fault-tolerant private cloud architecture for internal use, we have proposed a new private cloud solution using a distributed monitoring algorithm. The other components of the system deal with the management of users’ data and the security concerns. At the starting of the system, all the different nodes should hold the value 0 as their default privilege value. This summary intended to present our work is structured into three parts: firstly we will present the cloud computing architectures and current available solutions. Eucalyptus architecture is seemingly encountered in the other private cloud solutions such as OpenNebula where the save terms namely cluster, node or cloud controller are used. Moreover, it is based on Eucalyptus which is a centralized monitoring architecture based solution. Our solution, on the other hand, is a fully-fledged private cloud solution that naturally supports fault-tolerance features for the high availability of Infrastructure services. Some of them are also over-engineered (Neutron for example) together with OpenvSwitch is very complex itself.
The third part will present our solution with the materials and method used to implement it. Adding a first node to the initial selected node should make its state transit from 0 to 4. To ensure high availability, our solution uses virtual machine migration through the secure shell (SSH) protocol. This latter feature requires all the host nodes of the system to have a minimum disk space in order to receive and run the migrated virtual machine. Il tuo indirizzo email: ISCRIVIMI ADESSO Hosting Talk e il punto di riferimento italiano per i professionisti del web, webhosting provider e ISP.Niente SPAM, promesso! Moreover, the solution supports the administration of physical and virtual machines through a command line interface (CLI) and a web portal. From this moment, adding a node as a new cluster leader to the system should result in affecting the value 2 to this node by the actual CLC. It also includes a VNC (virtual network protocol) client allowing access to the cloud machines through the Web application. Moreover, adding a first node to a cluster, having already a leader, should result in attributing the value 1 to that node.
A new node added to a cluster having already a leader and an elected node should result in attributing the value 0 to that node. The solution also allows users accounts creation with the ability to assign them a number of virtual machines. It is compatible with Xen virtualization system and offers the possibilities to deploy, to start and to stop created virtual machines.



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