Exchange Server 2007邮箱存储服务器的集群和高可用性技术(下)

CCR的拓扑结构-->见下图:            Majority Node Set Quorum with File Share Witness(FSW)

                        

CCR支持两个节点的群集-->Arbitrator for 2 node

Majority of voters must participate in heartbeat

Specific considerations for cross-site CCR implementations-->Most common failure is Network between DC Locations 

FSW located on HUB role within CMS 'preferred owner' DC-->This way network failure between sites does not affect Active node

Active & Passive communication failure - Active will remain Active-->SMB File Lock (Fast Failover)

CCR集群的安装步骤: 准备硬件和网络环境

                         安装和配置操作系统-->需要在Windows上安装特殊的补丁(KB 921181)

                         安装Exchange依赖的组件

                         配置网络

                         创建集群服务账号(需要特定的数据库加载访问权限)

                         创建并配置file share witness共享的权限

                         创建集群

                         添加第二个节点到集群中

                         配置MNS file share witness

                         检查和验证集群的运行情况

                         安装Exchange Server 2007邮箱服务器角色和集群邮箱服务

                         在第二个节点上安装Exchange Server 2007邮箱服务器角色

                         启用transport dumpster

                         验证集群的功能

创建并配置File Share Witness-->通常在Hub Transport上配置

验证集群工作情况: Run: Move-ClusteredMailboxServer 虚拟服务器名称-targetmachine: 被动节点的物理服务器名称-movecomment: "verifying CCR install"

                      Run: Get-ClusteredMailboxServerStatus 虚拟服务器名称