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业务连续性

原创 Linux操作系统 作者:jenifer23710092 时间:2012-03-05 14:28:40 0 删除 编辑

Allows migration of a running LPAR to another physical server

 Reduce impact of planned outages
 Relocate workloads to enable growth
 Provision new technology with no disruption to service
 Save energy by moving workloads off underutilized servers

 

Continuous Application Availability

Relocate all partitions from one server to another when performing

 工作负载分区WPAR

Virtualized AIX operating system environments within a single AIX image
Each WPAR shares the single AIX operating system but can be separately managed
Applications and users inside a WPAR cannot affect resources outside the WPAR
Each WPAR can have a regulated share of processor, memory and other resources
Two types of WPAR
System WPARs have separate security and appear like a completely separate OS
Application WPARs are manageability wrappers around a single application

数据复制技术

LVM逻辑卷标复制(同步)

GLVM 全局卷标复制(异步)

IBM Metor Mirror storage 同步镜像

IBM Global Mirror storage 同步镜像

 

failover 失效转移

自动失效转移的能力

HA

tiger-7 服务器或存储复制,提供端到端的服务器自动复原

tiger-6 实时,持续的数据复制,服务器

t-5 应用 数据库级别的恢复

t-4 基于备份/恢复的时间点复制

t-3 磁带库,电子传送服务

t-2 备机恢复

t-1 磁带,备机恢复

SSCT(Shared storage clustering Topology)

共享存储集群 技术

双节点间通过心跳线获取节点状态

双节点访问共享存储空间

每个节点与IP 网络 通过IP 心跳连接

单一节点down机,另外一个节点自动接管,对客户ip透明,服务透明

Relocate all partitions from one server to another when performing maintenance. Move the partitions back when maintenance is complete


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