异地存储FCIP最佳实践.pdf

《异地存储FCIP最佳实践》.pdf? 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID 1 思科FCIP解决方案介绍Huang Da Chuan Technical Solutions Architect Data Center Cisco China ? 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID 2 两地三中心容灾解决方案?同步加异步的解决方案?保证数据一致性?增量重同步?Star或级联拓扑?EMC SRDF/Star ?IBM MetroGlobalMirror ?HDS TrueCopy+URMetro/Global Mirror 0-300KM Global Mirror Metro Mirror No distance limitation Incremental ResyncLocal Intermediate Remote ? 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID 3 3 同步和异步数据复制对链路的不同要求 §?同步数据复制 链路带宽是否能承载业务数据峰值传输的要求 时延的改变对业务生产系统响应时间的影响 距离 信号衰减 §?异步数据复制 链路带宽是主要的考虑点 要考虑RPO和业务数据处理峰值链路的稳定性对数据复制的影响 链路中断一段时间后恢复,数据复制能否自动恢复 ? 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID 4 常用的SAN远程连接技术 Short distance ~ <= 100km!FC over DWDM/CWDM!?同城范围内的灾备!?基于裸光纤!?专用线路!?低延时,适合同步数据复制的灾备!LocalDatacenter!SAN!SAN!SAN!IP RoutedWAN!SAN!SAN!!SAN! Medium distance ~ <= 160km!Short – Long distance!0 - 5000+ km!LocalDatacenter!LocalDatacenter!RemoteDatacenter!RemoteDatacenter!RemoteDatacenter!FC over /SDH!?中距离的灾备!?不能采用裸光纤的情形!?传输链路可能是共享的!?适合大多数数据复制环境!FC and FICON over IP!?通常用于异地灾备!?不能采用裸光纤的情形!?传输链路可能是共享的!?通常用于异步数据复制的灾备!Dark Fiber? 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID 6 思科SAN 扩展解决方案特点?集成支持CWDM粗波分复用高可用部署 ?结合思科ONS光平台设备,实现DWDM密集波分复用 ?集成支持FCIP GE端口,轻松把SAN扩展到千里之外 ?支持FCIP链路压缩和写加速,提升容灾数据复制效率 ?允许超远距离容灾链路捆绑,保证全网稳定? 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID 7 §?Fibre Channel interconnect over DWDM / WAN or MAN §?Provides high bandwidth, low-work for synchronous applications §?Up to 4095 Extended Buffer-to-Buffer credits on a FC port without disabling any port §?Increased application throughput with Fibre Channel Write Acceleration running on Storage Services Module SAN Extension – Fibre Channel over work ? 2007 Cisco Sys