VMware虚拟架构产品和解决方案汇.ppt

* 除了 VMotion 和 VMware HA 等支持服务器超长正常工作时间和高可用性的产品之外，VMware 还开发了一些优化工具，用来维护 VMware Infrastructure 的高效率。VMware DRS 就是其中之一。VMware Infrastructure 将符合业界标准的服务器及其附带的网络和存储器聚合到一个共享的计算、网络和存储资源池。DRS 动态地分配和平衡计算容量以保证对资源的最优访问。 它主动监控容量利用率，并以智能化的方式在资源池中自动平衡虚拟机，以达到服务级别要求。DRS 根据定义的业务优先级和不断变化的容量需求在不同的虚拟机间分配可用的计算容量。当某个虚拟机的负载增大时，DRS 会自动将该虚拟机迁移到另一台可用资源较多的物理服务器，从而为它分配更多的容量。反之，当 VMware DRS 检测到资源池使用较少的服务器即可运行工作负载时，它会让它们进入待机模式，从而减少电力消耗。无论是哪种情况，它管理资源分配时都不需要让资源池中的虚拟机停机。 DRS 优化了 IT 环境，使资源与业务目标相协调，同时确保了硬件资源的灵活性和有效利用。 * Believe it or not Potential problems are diagnosed as soon as they start occurring and preventive medicine is administered. i.e. as soon as an application starts experiencing increased load, and is consequently starved for resources, and before it has hit serious performance issues, DRS detects that event, and provides more resources to that virtual machine. This is the self-adjusting, self optimizing datacenter. Normally sys admins would learn about such problems when their phones start ringing off the hook because a major application is down. You can allocate your available resources depending on the value of the applications they support. Not all applications are created equal – some are more important than the others. With DRS you can ensure that the important applications always take precedence if there is competition for resources. VMware? Distributed Resource Scheduler (DRS) dynamically allocates and balances computing capacity across a collection of hardware resources aggregated into logical resource pools. VMware DRS continuously monitors utilization across resource pools and intelligently allocates available resources among the virtual machines based on pre-defined rules that reflect business needs and changing priorities. When a virtual machine experiences an increased load, VMware DRS automatically allocates additional resources by redistributing virtual machines among the physical servers within the network. VMware DRS allows IT organizations to: Prioritize re