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1、业务永续数据中心的业务连续性规划与设计,客户需求,这个世界比过去有着更多的风险,环境在不断变化 风险接触范围在不断扩大 全球及区域间的依存关系在不断增大 供应链每时每刻都存在中断的风险 业务中断将导致更大的影响 宕机可能导致更大的财务影响 宕机可能对品牌造成伤害 宕机可能导致数据失去完整性 更繁杂的规范 产业和监管标准在不断变化 产业分工在地理分布上更趋分散 每个国家都可能有自己相应的规范 更多的灾害 经济危机、恐怖主义、飓风、地震、 停电、火灾和疾病的大规模威胁,业务连续性问题和挑战,更多的业务在线 更多的应用和数据增长的需要,更多复杂的系统 更少的恢复时间窗口 更小的对停机时间的容忍度,备
2、份与恢复 vs. HA高可用 重新运行批处理日终作业 手动的应用与数据的恢复 丢失数据 最好的意图 vs. RTO, RPO, SLA规范的设计 ,收入和利润受损失 负面的社会影响 罚款和罚金 涉及法律依从及会计的问题 员工的劳动强度和费用 对日常的业务规划和运作产生影响 ,60%的客户正在关注如何提高可用性 接近50%的客户希望有显著的安全提升 超过25%的客户希望实施高可用集群,业务延续运性之考虑Consideration for Business Continuity,Fault-tolerant hardware, redundancy, automatic detection and
3、 isolation, predictive analysis, call-home,Real-time replication of data over metropolitan and/or continental distances,Automated protection against unplanned outages with meeting recovery point and recovery time objectives,高可靠性 High Availability,数据复制 Data Replication,灾备技术 Disaster Recovery,业务延续运性 B
4、usiness Continuity,IBM Power Systems高可用性解决方案,HA和DR 的差别,High Availability,自动的接管 一般适用发生在本地的错误 针对物理设备的保护 服务器 硬盘 适配器卡 网络 针对致命的软件错误的保护 操作系统 数据库 应用 服务,基本,可用性,无,数据丢失,恢复点目标,Data Currency,Latest,持续可用性,数据传输 （每个交易的价值）,可用水平,恢复时间目标,和,缩短的,计划内,停机时间,Availability Level,SAN 磁盘,备份服务,多服务器,解决方案,iSeries,single-server,单服务
5、器,solutions,解决方案,备份,周- 日,场外,存储,RAID-5,日志,组合,磁盘,镜像,SAN,AIX, Linux,Intel 群集,连续数据,复制群集,可切换集群,在线,维护,CUoD,高速,磁带,LPAR,TSM,BCRS,SWA,支持业务连续性与灾备的系统组件,面向开放平台的高可用(High Availability)解决方案的架构,Availability by 应用 按照高可用的要求来设计应用架构 Availability by 中间件 DB2 HADR、WAS 集群, CICS 集群 Oracle RAC Availability by 操作系统 AIX LVM 镜像
6、、HACMP for AIX Availability by 硬件冗余 服务器 冗余的处理器 / I/O适配器卡/ 电源 / 内置磁盘RAID技术保护 外置磁盘, I/O 总线、SAN 交换机、LAN、LAN 交换机 冗余的部件 磁盘 RAID 多路径(Multi-Path)软件（SDD、RDAC) 通过磁盘复制的可用性 FlashCopy, Metro/Global mirror 网络,Hardware Power Systems ( RAS ) Live Partition Mobility,Power Systems Software PowerHA PowerHA/XD,Applica
7、tion,Operating System AIX, I Live Application Mobility,IBM Power Systems High Availability Solution,Impact of Maint on Availability,IT Availability 24 x 7,Time for Planned Maintenance,Is this you? Your users demand continuous availability (24x7),Do you agree? As IT availability approaches 24x7, top-
8、notch maintenance practices become more critical,Is this your problem? As IT availability approaches 24x7, the time for maintenance work approaches zero!,The Power Systems High Availability Solution can show you how POWER6 processors and AIX 6 help to address the maintenance crunch! Learn how Live P
9、artition Mobility, Live Application Mobility, Workload Partitions and PowerHA can enable non-disruptive maintenance anytime!,Do you want more availability and less work on weekends?,High Availability Hardware - Reliability, Availability and Serviceability,IBM Power Systems RAS架构,Processor Instructio
10、n Retry Alternate Processor Recovery First Failure Data Capture DDR Chipkill memory Bit-steering/redundant memory Service Processor Failover* Dynamic Firmware Maintenance* Hot I/O Drawer Add* I/O error handling extended beyond base PCI adapter ECC extended to inter-chip connections for the fabric/pr
11、ocessor buses Memory and L3 Cache soft scrubbing Hardware Assisted L2 interval.*.clock.100 printf(“Number of reads = %dn”, count); count = 0;,# countreads.v 404Number of reads = 22Number of reads = 0Number of reads = 1Number of reads = 17.,Formatted I/O,User,Kernel,Probe Location,User Process Code,S
12、ome thread hits probe point (1),Branches to probe code (2),Probe code (3),Returns to probe point (4),Thread continues execution(5),Trace Consumer,Trace File,or,Trace Output,Trace Buffers,E-code,“Vue” probe code example,The AIX answer to Solaris dtrace,This information is intended only for IBM seller
13、s and Business Partners,AIX V6.1 Workload Partitions (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 c
14、an 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,What is it?,This information is intended only for IBM sellers and
15、 Business Partners,AIX V6.1 Live Application Mobility,The capability to relocate a running Workload Partition from one system to another without restarting the application The application running inside the WPAR resumes running after the relocation is complete Works with systems based on POWER4, POW
16、ER5 and POWER6 processors Requires the IBM Workload Partitions Manager for AIX Manual or automatic, policy based relocation,What is it?,操作系统停机时间调查: AIX是业界最稳定的操作系统(27个国家400个用户),The Yankee Group “2007-2008 Global Server Operating Systems Reliability Survey” as quoted in “Windows Server: The New King of Downtime” b
