美国加州IT作业代写 关键业务功能

Keywords:美国加州IT作业代写 关键业务功能

这些政策包括确定与NHS IT平台和操作相关的关键业务功能，然后为每个功能分配一个优先级，以便可以持续或定期地对其进行监视。这些策略可用于计算某些问题对业务的操作、战略和功能任务的影响。但即使是这些政策也无法弥补云基础设施运行过程中的人为失误，因此我们建议在云平台运行过程中加强警惕，并配备有资质的人员进行监控。但是，为了安全起见，我们建议采取安全预防措施，如在现场以外的设备(在主现场出现任何问题时)作为数据复制版本的热备用。由于我们采用了混合云模型，我们必须对公共云和私有云进行规划、恢复和缓解。因为我们是利用第三方云供应商,我们可以继承他们当前的业务连续性政策和服务连续性的重要,我们可以切换云提供商和迁移应用程序和服务动态,或者我们可以获得当前的服务水平协议(SLA)在没有任何中断服务提供者有可用性和应用。但是，当为私有云选择策略时，就会面临挑战，我们必须能够持续访问、获得最新的信息、高可用性、安全性以及数据、服务和应用程序的基础设施。因此，如上所述(2013年8月)，一个可行的和有吸引力的选择是热备份和离线备份和维护。这种方法的好处是在需要的时候，应用程序和数据的高可用性。它的工作原理如下，当灾难或问题影响主站点或中心站点时，基础设施将被编程为立即切换到备用站点可用的基础设施(路透社，2013年)。备份将不断地使用来自主服务器的数据和服务进行更新，然后备份将成为主服务器，直到前一个主服务器返回服务，其中当前主服务器再次成为辅助服务器。服务恢复正常，客户端可以在任何位置访问它们。在灾难的时候,NHS的工作量就会成指数级增长,如果主站点受损二级网站可能有巨大的工作量来处理由于高流量,基础设施使用负载平衡器在这种情况下,分配工作负载在多个网站,避免失败。
美国加州IT作业代写 关键业务功能
These policies involve the identification of key business functions that are concerned with the NHS IT platform and operation and then assigning a priority level to each function so that they can be monitored continuously or at regular intervals. These policies can be used to calculate the effect of certain problems on the operational, strategic and functional tasks of the business. But even these policies cannot account for human error in the operation of the cloud infrastructure, thus we propose extra vigilance while operation of the cloud platform along with the surveillance by certified and qualified personnel. But to be on the safe side we recommend safety precautions such as offsite equipment (in case of any problems in the primary site) being as hot standby with the replicated version of the data. Since we employ a hybrid cloud model, we have to have planning, recovery and mitigation for both the public and private cloud. Since we are utilizing third party cloud vendors, we can just inherit their current policies for business continuity and as for service continuity which is of tantamount importance, we can just switch cloud providers and migrate our applications and services on the fly either that or we can obtain Service Level Agreements (SLA) from the current provider about having availability throughout without any disruption of service and application. But the challenge comes when choosing policies for the private cloud, we have to have continuous access, up to date information, high availability, security and the infrastructure for the data, services and application. Thus, a viable and attractive option would be the hot standby coupled with the offsite backup and maintenance as mentioned above (anon. August 2013). The benefit of this approach is the high and ready availability of the applications and data when required. It works as follows, when a disaster or problem affects the main or central site, the infrastructure will be programmed to immediately switch to the standby infrastructure available at the secondary site (Reuters, 2013). The backup will be continuously updated with the data and services from the primary and then the backup becomes the primary until the previous primary comes back into service wherein the current primary becomes the secondary again. The services resume normally, and the clients have access to them regardless of their location. During the time of disasters, the workload of the NHS rises exponentially and if the primary site is damaged the secondary site may have a huge workload to handle due to the high traffic, the infrastructure uses its load balancers in this situation and distributes its workload across multiple sites so as to avoid failure.