SANsymphony-V-虚拟化结合

1、虚拟化/云端的基石: DataCore SANsymphony-V 存储虚拟化1Copyright 2011 DataCore Software Corp. All Rights Reserved.虚拟化环境可能碰到存储相关的问题2Copyright 2011 DataCore Software Corp. All Rights Reserved.如何整合用户环境中的各种存储，实现存储虚拟化如何解决虚拟化环境中的存储性能匮乏问题如何将存储资料的可靠度提升？且不被特定厂商绑定？提供快速的资料备份与还原保护机制？如何摆脱以上的束缚与限制？3Copyright 2011 DataCore Softw

2、are Corp. All Rights Reserved.完整完整的的软硬件虚拟环境（软硬件虚拟环境（T.E.VT.E.V）4服务器虚拟化桌面虚拟化Copyright 2011 DataCore Software Corp. All Rights Reserved.虚拟化环境存储管理三大要素5Storage Consolidation异质存储整合Virtual Disk Pool存储资源共享Thin Provisioning空间有效利用CachingI/O反应速度提升RAID StripingI/O水平扩展Channel Replace在线路径变更Auto-Tiering自动存储分层Sync

3、 Mirroring (HA)同步镜像CDP/Snapshot资料持续保护Remote Replication/ASR异地灾难备援保护Pass-Through Disk既有存储设备再利用DataCore提供存储最重要三大要素功能提供存储最重要三大要素功能Copyright 2011 DataCore Software Corp. All Rights Reserved.6Storage Consolidation不同存储整合Virtual Disk Pool存储资源共享Thin Provisioning精简配置Copyright 2011 DataCore Software Corp. All

4、 Rights Reserved.基于传统的存储区域网络（SAN）7存储控制器 控制器故障导致整个信息系统 中断 单一磁盘阵列无法提供完整的 数据保护，反而因为单点故障 成为信息系统最脆弱的一环 故障发生后，必须执行繁杂的 人工操作 附加的备份存储，提高了 规划预算Copyright 2011 DataCore Software Corp. All Rights Reserved.存储设施虚拟化整合架构8存储控制器存储控制器存储控制器vDiskvDiskvDisk虚拟化存储层n 对存储进行虚拟化的管理。n 消除了异构中兼容性的模式，整合资源及再分 配；n 脱离基于传统控制器，实现了对存储信息灵

5、活 管理的梦想。不再是利用单独的存储设备虚拟化存储使应用不再与存储系统保持关联性iSCSINASFCCopyright 2011 DataCore Software Corp. All Rights Reserved.存储资源共享SANFC / iSCSISSV虚拟存储池前端主机2TB3TB4TB6TB10TB5TBE牌磁盘阵列H牌磁盘阵列B牌磁盘阵列N牌磁盘阵列S牌磁盘阵列D牌磁盘阵列成本性能密度高高低成本性能密度中中中成本性能密度低低高n整合各种不同存储设备(FC/SCSI/iSCSISAS/ATA/IDE/USB)n依存储池内不同磁盘类型，进行阶层化分类n可在线新增更多实体磁盘至存储池中

6、n虚拟存储池空间使用预警值设定vDiskvDiskvDiskDataBaseHyperVisorFile Server各种介质(SCSI、SAS、FC、SATA、 ISCSI、 USB、EIDE)Copyright 2011 DataCore Software Corp. All Rights Reserved.阶层型的虚拟存储池13SANFC or iSCSI虚拟磁盘存储池主机2TB2TB4TB4TB10TB10TBE品牌U存储H品牌V存储B品牌W存储N品牌X存储S品牌Y存储D品牌Z存储成本成本性能性能密度密度HiHiLow成本成本性能性能密度密度MidMidMid成本成本性能性能密度密度L

7、owLowHin在虚拟存储池添加完全兼容性的存储设备资源。n根据存储池的资源，简单地资源的阶层化。n存储池内的资源，可在线能追加。Copyright 2011 DataCore Software Corp. All Rights Reserved.虚拟磁盘的资源分配11nThin Provisioning技术，精简化实体空间分配。n可针对每个虚拟磁盘 (VDisk)设定预定保留(reserve)的存储空间。n 虚拟磁盘可放大或缩小(Resize)n已经分配的存储资源可透过reclaimation功能进行空间回收n 虚拟磁盘最大可设定虚拟磁盘最大可设定1PB !虚拟磁盘容量保留空间实际使用空间虚

8、拟磁盘容量实际使用空间SSV虚拟存储池(实际容量1TB)虚拟磁盘容量 80TB虚拟磁盘容量 1PBVDisk#1 (80TB)VDisk#2 (1PB)于档案层级删除档案可于SANsymphony-V进行空间回收作业Copyright 2011 DataCore Software Corp. All Rights Reserved.12Disk CachingI/O反应速度提升RAID StripingI/O水平扩展Auto-Tiering资源分层自动化Online Channel Replace线上路径变更Copyright 2011 DataCore Software Corp. All

9、Rights Reserved.高速缓存15DiskSubsystemsCachedArrayCachedArrayUn-cachedArrayHigh-SpeedLevel 1 CachingCPU缓存写入聚合写入缓存响应缓存预读CPUCPUCPUDisk Drive 4000? 6000DataCore L1 Cache 20Array L2 Cache 250? 300Avg. Response (S)n每台DataCore节点，最大1TB前端主机前端主机前端主机Copyright 2011 DataCore Software Corp. All Rights Reserved.IO水平

10、扩展及负载均衡16DataCore Server虚拟存储池VDiskn 通过 Raid 技术保护存储设备n 通过 Raid 技术分配 I/O 压力提升整体存储性能n 在线设备替换Storage #2Storage #3Storage #1Storage #4Copyright 2011 DataCore Software Corp. All Rights Reserved.RAID Striping (IO scale out)15DataCore SSVSSV虚拟存储池VDiskn虚拟存储池中，可透过scale out方式扩充更多I/O与容量n皆为线上方式新增扩充额外存储资源n通过分散式写入

11、逻辑磁盘，以RAID Striping方式提升整体IO性能n 结合后端存储设备RAID保护机制，成为RAID 50、RAID10等组合n 在线设备替换Storage #2Storage #3Storage #1Storage #4Copyright 2011 DataCore Software Corp. All Rights Reserved.Auto-Tiering 自动分层存储n在同一个存储池中，根据不同存储介质进行性能分级n SANsymphony-V针对资源区块存取频繁度进行侦测n被频繁存取的数据将被搬移到适合（已定义的）资源上16Tier 1SSDTier 3SATATier 2S

12、AS频繁存取不常存取适度存取虚拟磁盘虚拟磁盘存储池存储池60%Low Cost / Highest Capacity35%Midrange/ Modestly Priced5%Fastest/ Most ExpensiveSSD读取性能优于SAS磁盘25-100倍采用此技术有效提升重要服务的存储性能Copyright 2011 DataCore Software Corp. All Rights Reserved.Fusion-IO with DataCoreplus performance17Copyright 2011 DataCore Software Corp. All Rights

13、Reserved.DataCore PerformanceThe tests were based around four HP ML370G5 servers, each filled with as many dual port 4Gb/s HBAs we could cram in - 16 ports in each server. The storage hardware was on evaluation from HP and EMC. We had an HP EVA8000 with 240 x 300GB 15K FC disks, and an EMC CX3-80 wi

14、th 240 x 144GB 15K FC disks. The storage was provisioned from each array to two of the SAN Symphony SDS servers. From here, virtual luns were created in SAN Symphony and provisioned up to the 14 Application servers we had, with a mixture of 2Gb and 4Gb HBAs.The tests were conducted with IOMeter and

15、Microsoft Exchange Jetstress. The results are below:SCENARIO 1: HP EVA8000 and SAN SymphonyExchange JetStress 10,634 IOPSIOMETER64K Sequential Reads (Max MB/s) 17,432 IOPS, 1,089.50MB/s512B Sequential Reads (Max IOPS) 441,842.67 IOPS!, 215.74MB/sSCENARIO 3: HP EVA8000 without SAN SymphonyExchange Je

16、tStress 9,061 IOPSIOMETER64K Sequential Reads (Max MB/s) 17,720 IOPS, 1,107MB/s512B Sequential Reads (Max IOPS) 135,258 IOPS, 225.33MB/sSCENARIO 2: EMC CX3-80 and SAN SymphonyExchange JetStress 12,965.41 IOPSIOMETER64K Sequential Reads (Max MB/s) 17,473 IOPS, 926.29MB/s512B Sequential Reads (Max IOP

17、S) 488,878.67 IOPS, 325.33MB/sSCENARIO 4: EMC CX3-80 without SAN SymphonyExchange JetStress 10,718.61 IOPSIOMETER64K Sequential Reads (Max MB/s) 16,236 IOPS, 1,014MB/s512B Sequential Reads (Max IOPS) 164,305 IOPS, 80.23MB/sCopyright 2011 DataCore Software Corp. All Rights Reserved.19Sync Mirroring (

18、HA)本地端故障保护CDP/Snapshot资料持续保护Remote Replication & Site Swap异地灾难备份保护Pass-Through Disk既有存储设备保护Copyright 2011 DataCore Software Corp. All Rights Reserved.信息化的命脉在哪里？所有的虚拟机与资料皆存放在单点存储当存储硬件失效时，影响范围全面性空调失效电力问题资料操作错误建筑物崩坏技术性错误维护升级其他意外服务器群ClusteringCopyright 2011 DataCore Software Corp. All Rights Reserve

19、d.解决存储单点错误的建议方案 传统存储设备通常这样建议存储镜像机柜A楼层A厂房A机柜B楼层B厂房BCopyright 2011 DataCore Software Corp. All Rights Reserved.尽管做了镜像，存储服务依然停摆Stand by必须为相同品牌的设备型号SynchronousMirrorOut-of-service镜像拷贝副本为离线状态必须重新配置磁盘给前端主机，才能继续存取另行撰写脚本进行自动化切换昂贵的购置成本(中高级存储设备、软件授权、硬盘品牌限定)手动指派应用服务器/备援服务器应用服务器Copyright 2011 DataCore Software

20、Corp. All Rights Reserved.Synchronous Mirroring（Storage HA）23n异质存储设备间进行实时资料镜像n可延展架构，可分布于同机房/不同楼层/不同楼间n 结合前端主机多路径管理(MPIO/DSM)，实现自动路径切换n维护停机或单点元件故障不影响前端主机IO运行ActivePartnerCacheCacheVDiskMirror (P)Mirror (S)123455路径自动切换前端主机SSV1SSV2cache to cache 2 phase commit提升SLA等级100% non-downtimeCopyright 2011 Data

21、Core Software Corp. All Rights Reserved.持续不中断资料保护 （iCDP）24ActiveCDPSource写入时间戳记9am 10am 11am 14天11:49 AM11:48:59 AMn可提供最少8小时，最高14天的资料保护作业 (恢复以秒为单位恢复以秒为单位)n以虚拟磁盘为单位进行保护n前端主机不需安装任何Agent，支持所有作业系统(包含各种虚拟服务器)nBlock level，与前端应用程序/服务无特定依赖关系n瞬间建立任意时点roll back volume，简化恢复作业前端主机FC/iSCSIDataCore SSVCopyright 2

22、011 DataCore Software Corp. All Rights Reserved.Online Snapshots （Full / Differential）25n可排程时间点进行快照备份作业n内建提供“完全复制(Full)”与“差异化复制(view)”两种快照技术 n支援夸异质存储设备间的快照作业，降低快照备份的成本n 最高达1024份快照11:00 AM08:00 AM12:00 PM17:00 PM前端主机测试平台备份服务器 资料备份 资料测试 资料分析 资料恢复快照排程DataCore Virtual DiskDataFC/ iSCSIData(Full & Vi

23、ew)Copyright 2011 DataCore Software Corp. All Rights Reserved.1234Online Snapshots 在线快照18Host (Active)Source1234Point-in-time Backup Testing Analysis Recoveryn快照性能大幅提升n虚拟卷快照瞬时完成Copyright 2011 DataCore Software Corp. All Rights Reserved.异地容灾技术ClusterCentralizedManagementAsynchronous ReplicationBuildi

24、ng 1Building 227Copyright 2011 DataCore Software Corp. All Rights Reserved.Asynchronous Remote Replication28IP NetworkActiveBufferSourceDestinationAsync CopySnapshotRecovery Imagen使用IP方式进行非同步资料区块传输作业 n专利传输与压缩，提升整体传输效率达5-20倍n异地备援端可通过快照技术，达成异地多时间点恢复n 任何时间点皆可于异地端通过快照进行资料验证运营主机资料中心端异地备援端灾备主机随时资料验证SSV 1S

25、SV 3Copyright 2011 DataCore Software Corp. All Rights Reserved.SSV 1北京Advanced Site Recovery29IP NetworkVDiskBufferSourceDestinationn 相当于高级存储设备的传输自由反转功能n Advanced Site Recovery (ASR)双方向传输作业n 通过ASR可任意反转传输方向，仅复制变更数据区块，简化灾难演练n 整合PowerShell，可配置适合企业自身灾难恢复作业，达成备援自动化VDiskBuffer运营主机备援主机Active SiteStandby SiteStandby SiteActive Site启动异地备援/灾难演练SSV 3上海自动挂载自动挂载Copyright 2011 DataCore Software Corp. All Rights Reserved.支持一对一，一对多，多对一的弹性规划30总公司数据中心异地备援 / 远程分公司Cop