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1、NetApp & VMware 解决方案,NetApp Storage Virtualization with VMware,Agenda VMware Virtual Infrastructure Provisioning Storage for Virtual Machines Backup & Restore of Virtual Machines Disaster Recovery Solutions NetApp Advantage,ESX Server,3,An Introduction to VMwares Virtual Infrastructure,Components of
2、 a Virtual Infrastructure or VI3 ESX Server -Physical server platform Shared Storage - FCP, iSCSI, or NFS Datastore - Shared storage configured to store VMware data Virtual Machine (VM) - Logical collection of hardware resources such as CPU, memory, network, and storage Virtual Disk (VMDK File) - Vi
3、rtual SCSI attached storage for a VM,Aggregate,FlexVol,Virtual Machine 1,V Disk 0,Virtual Machine 2,V Disk 0,V Disk 1,Virtual Machine 3,V Disk 0,LUN,NetApp FAS System,VMDK,VMDK,VMDK,VMDK,Data Center,ESX HA,Components of a VI3 Cont Data Center -Logical grouping of physical ESX servers VMware DRS - Mo
4、nitoring of resources on ESX Servers VMotion - Dynamic movement of a VM from one ESX Server to another VMware High Availability (HA) Quasi ESX Clustering which VMs are restarted after a host failure VirtualCenter - Central management Interface which enables DRS, VMotion & HA,An Introduction to VMwar
5、es Virtual Infrastructure,5,VMotion In Action,Migrate a running VM w/ VMotion Witness running VM Initiate a Migration from ESX 32 to ESX 31 Monitor VM console for service disruption,6,Additional VI3 Terms & Concepts Service Console Admin interface of an ESX Server VMkernel ESX Server connection to V
6、I resources VM network VM IP connection to client network VM Config File (VMX) Text file containing a VMs configuration data,An Introduction to VMwares Virtual Infrastructure,VMware File System (VMFS) VMwares clustered file system Raw Device Mapping (RDM) Direct access from VMs to LUNs VMTools VM dr
7、ivers and management APIs Required for VMotion VMware Convertor Physical to virtual server migration tool Can import non-VMware images Ghost & Virtual PC,NetApp Storage Virtualization with VMware,Agenda VMware Virtual Infrastructure Provisioning Storage for Virtual Machines Backup & Restore of Virtu
8、al Machines Disaster Recovery Solutions NetApp Advantage,Provisioning Layout,Laying out Storage Availability RAID-DP Higher availability Lower cost Performance Large aggregates Higher performance Flexibility One FlexVol per VM Faster storage provisioning Improved utilization,FlexVol-1,Aggregate-1,LU
9、N-1,LUN-2,FlexVol-2,LUN-3,LUN-4,Provisioning Protocols,Protocols ESX Server Not either/or question FCP Highest performance iSCSI Lower infrastructure costs Remote site, DR Software/HW initiator option NFS,VMware ESX 3.0,Storage,App,OS,Protocols Guest Controlled Storage iSCSI, NFS or CIFS,FCP,iSCSI,N
10、FS,iSCSI,NFS,CIFS,Aggregate,FlexVol,FlexVol,NFS mount,CIFS share,Disk,Data Store,Data Store,Data Store,LUN,LUN,NFS export,LUN,NFS export,CIFS share,Provisioning Virtual Disks,Virtual Disks FCP or iSCSI Traditional deployment method VMDK files delivered to VMs ESX controlled storage,OS,App,Aggregate,
11、FlexVol,LUN,Disk,App,Disk,Storage,Datastore,Advantages Simple, easy to manage Disadvantages Difficult to leverage storage value Utilization Performance,VMFS Filesystem,VMDK File,VMDK File,FCP or iSCSI,ESX Server,Provisioning Raw Device Mapping,RDMs (Mapped System LUN) FCP or iSCSI Native guest files
12、ystem,OS,App,RDM,Aggregate,FlexVol,LUN,Disk,LUN,Disk,OS,App,Disk,LUN,FlexVol,Storage,DataStore,Advantages Very fast Leverage storage features Disadvantages More complex than giving VMware “One big LUN” Provisioning at Storage, ESX Server, and VM layers,NTFS,NTFS,FCP or iSCSI,ESX Server,RDM,RDM,Provi
13、sioning Guest Controlled Storage,Guest Controlled with LUNs VM direct to storage SnapDrive create, expand, delete,Windows 2003 App,VMDK files,Linux App,Datastore,Advantages Lowest operational impact SnapManager SQL/Exchange Utilisation Disadvantages Independent of VMware tools No FCP support,Aggrega
14、te,Storage,FlexVol,LUN,VMFS,OS,VMFS,OS,FCP, iSCSI,FlexVol,LUN,Provisioning Guest Controlled Storage,Guest Controlled with NFS VMDK files for O/S Mount direct to VM for data,Linux/UNIX App,VMDK files,Advantages Resize NFS FlexVol up or down instantly: utilisation No ESX Server admin for data VM initi
15、ated restores Disadvantages Independent of VMware tools,Aggregate,Storage,NFS,OS,FlexVol,FlexVol,NFS export,Datastore,NFS export,Provisioning Summary,Best Practices It depends on what you are virtualising Think about it the same way as physical servers You use internal disks for the OS boot Then pro
16、vision LUNs from external storage for Data Virtual Machines are no different Use VMDK for the VM boot disks Use Raw Device Mappings and/or Guest Controlled Storage for data disks Can leverage storage features,NetApp Storage Virtualization with VMware,Agenda VMware Virtual Infrastructure Provisioning
17、 Storage for Virtual Machines Backup & Restore of Virtual Machines Disaster Recovery Solutions NetApp Advantage,Backup & Restore VMs as Physical Servers,ESX Server,OS,App,Bkp,OS,App,Bkp,OS,App,Bkp,OS,App,Bkp,LAN,OS,Backup Software,Backup Server,Backup clients installed in VMs,Backup data traverses L
18、AN via ESX server,1010,1010,1010,1010,Disk,Disk,Disk,Disk,Backup VMs like physical servers,Aggregate,FlexVol,NetApp Storage,Backup & Restore VMs as Physical Servers Using OSSV,ESX Server,OS,App,OSSV,OS,App,OSSV,OS,App,OSSV,OS,App,OSSV,LAN,OSSV clients installed in VMs,Only changed blocks traverses L
19、AN via ESX server to NetApp Storage System,1,0,1,0,1010,1010,1010,1010,Disk,Disk,Disk,Disk,Backup VMs like physical servers Using OSSV,Aggregate,FlexVol,NetApp Storage,Backup & Restore RDM “Hot Backup”,ESX Server,OS,App,LUN,Snap shot,Disk,2,Snapshot backup steps:,Place VM into “hot backup” mode - RE
20、DO logs generated,Run “Snapshot” command on NetApp System,Commit VM REDO logs to disk and resume normal mode,Backup completes in under 5 seconds,RDM,Datastore,1,3,1010,Redo,Aggregate,FlexVol,NetApp Storage,OS,App,RDM,Datastore,Backup & Restore RDM Full Disk Restore,ESX Server,LUN,Disk,Full restorati
21、on steps:,Stop the VM,Snap shot,LUN Clone,Choose a Snapshot and create a clone LUN,1,2,Attach cloned LUN to VM,3,Power Up the VM,4,Confirm that this is the correct backup to work from,Make cloned LUN the real LUN and remove old LUN,LUN,5,6,Aggregate,FlexVol,NetApp Storage,RDM,Datastore,Backup & Rest
22、ore RDM File Restore,ESX Server,OS,App,LUN,Disk,Snap shot,OS,App,Disk,LUN Clone,Individual file restore steps:,Choose a Snapshot and create a clone LUN,Attach cloned LUN to a different VM as another disk,Copy file to original server,Disconnect clone LUN from temp VM,Disk,3,Remove clone LUN,4,RDM,2,R
23、DM,FlexVol,LUN,1,5,1010,NetApp Storage Virtualization with VMware,Agenda VMware Virtual Infrastructure Provisioning Storage for Virtual Machines Backup & Restore of Virtual Machines Disaster Recovery Solutions NetApp Advantage,Disaster Recovery SnapMirror,SnapMirror Asynchronous, Synchronous, Semi-S
24、ynchronous Over IP or FC networks From high performance to lower cost storage Only transfers changed blocks of data,Disaster Recovery RDM LUNs,OS,App,Data,Aggregate,FlexVol,LUN,Storage,DR with Raw Device Mapping LUNs Use backup method as described Backup script then triggers remote replication updat
25、e,LUN,RDM,VMFS Volume,SnapMirror,Snap Shot,1,2,Snap Shot,Disaster Recovery Guest Controlled Storage,OS,App,VMDK,OS,Data,Aggregate,FlexVol,LUN,LUN,Storage,SnapDrive,DR with SnapDrive Snapshot Data LUN using SnapDrive CLI SnapDrive automatically invokes SnapMirror to replicate to DR,SnapMirror (IP or
26、FC),LUN,LUN,VMFS,1,Snap Shot,2,Snap Shot,Disaster Recovery Leveraging DR,Leveraging DR Clone LUN or FlexClone to create writable VM LUNs For DR testing, data verification etc,OS,App,data,LUN,LUN,OS,App,data,LUN,SnapMirror,Production Virtual Machine,Disaster Recovery Testing,Production,Disaster Recov
27、ery,Disaster Recovery Summary,DR Best Practices It depends on how you provisioned the storage Virtual Disk Files on large VMFS filesystem All VMs will replicate, and all at same time RDM LUNs & Guest Controlled Storage Can choose different schedules for different VMs Can choose to not replicate cert
28、ain VMs,NetApp Storage Virtualization with VMware,Agenda VMware Virtual Infrastructure Provisioning Storage for Virtual Machines Backup & Restore of Virtual Machines Disaster Recovery Solutions NetApp Advantage,FAS3020C VS EMC CX3-20/40,FAS3020C VS EMC CX3-20/40,FAS3020C VS EMC CX3-20/40,NetApp的优势全面
29、提高生产力,简单性 NetApp存储设备的简单易用是业界公认的 简单的操作系统(Data ONTAP) 所有设备使用统一操作系统，了解了一个设备，就可以管理全部设备 简单性包括SAN/iSAN, LUN管理, DR的数据复制, 归档和备份 更高的存储空间利用 Flexible Volume技术，使得Volume和LUN的管理，与RAID和磁盘的管理想分离 易于使用脚本管理 用户可以非常方便的通过rsh, ssh和Manage ONTAP APIs来管理存储设备 易于和VMware的命令行结合，便于用户管理虚机(VM),其它厂商的空间分配方法介绍,RG1,RG2,RG3,RG4,RG5,APP1
30、,磁盘,LUN,APP2,APP3,APP4,APP5,APPn,其他厂商在空间分配方法上的局限性,RG1,RG2,RG3,RG4,RG5,APP1,磁盘,LUN,APP2,APP3,APP4,APP5,APPn,访问热点,FlexVol给性能和管理上带来的变革,磁盘,LUN,更好的实现了磁盘IO的平均分布，提升了整个系统的性能 消除了磁盘访问热点的出现 大大简化了存储空间分配和管理上的复杂度,Volume,NetApp的优势灵活性,存储协议支持 支持FCP, iSCSI, NFS VMware ESX 3.0全面支持上面三种协议，同时强调NFS协议对于VMware管理带来的便利性。NetAp
31、p是目前业界唯一的在同一存储设备上同时支持这三种协议的存储厂商。 在SAN/iSAN只见切换非常简单 混合磁盘支持 在同一存储设备上同时支持FC和SATA硬盘 多种接口支持 2g 和 4g FC 1g (光纤/铜线) 和 10g (光纤) 以太网 TOE/iSCSI 扩展卡,#3 简单快速的存储管理,不仅是简单的存储和LUN的管理，跟是快速的部署能力 不需要BIN文件或者其他的需要厂商支配的管理(从低端到高端） 在创建RAID组、Volume和LUN是不需要进行长时间的格式化 如果VMware的datastores需要进行空间的扩展，只需要1到2个命令就可以立即完成扩展 空间增加即可完成 增加
32、磁盘，磁盘柜以及增加额外的环路，均可即可完成,简单快速管理所带来的好处,EMC,EMC,NetApp: 30 seconds,65 min.,Clone LUNS,EMC,85 min.,Extend Size of Oracle DB,70 min.,NetApp: 30 seconds,NetApp: 35 min.,Create RAID Groups, Volumes, & LUNs,Elapsed Time:,Source: Veritest, 5/05. NetApp FAS3020 vs. EMC CX500,2X Improvement,140X Improvement,130
33、X Improvement,NetApp的优势快速有效的虚机(VMs)克隆,VMware ESX 包含了克隆, 但是 每一个克隆消耗100%的存储空间 需要消耗一定的时间完成克隆(实际是数据拷贝时间) NetApp LUN Clone 和 Volume FlexClone 几乎是瞬间完成克隆 当克隆创建时不占用额外的空间 随着克隆的虚机不断的使用，数据不断变化，克隆的LUN或者使Volume会占用变化的空间，非常明显的是swap的空间占用 应用 创建一个虚机的模板(并经过sysprep)，然后利用这个模板Clone新的虚机 利用克隆创建开发，测试，QA以及报告等数据 对大型数据库进行快速克隆,
34、NetApp的优势Thin Provisioning,VMware ESX 包含部分的thin provisioning VMFS或NFS中的Virtual Disks (VMDKs) 但VMFS本身并不具备这个能力 NetApp thin provisioning 对基于FCP或者iSCSI的VMFS提供thin provisioning功能 对RDM提供thin provisioning功能,40,Thin Provisioning,NetApp的优势快速备份,NetApp SnapShots 快速的“拷贝”而完全没有拷贝所带来的负面影响（时间和行呢个开销） 没有性能的影响 （不采用写时拷
35、贝的技术） 每个卷最多255个Snapshots 通过SnapRestore实现几乎瞬间的恢复 在Snapshot基础上实现FlexClone和SnapMirror技术 能够与VMware结合实现基于SnapShot的一致性备份,不同的快照实现的性能差别,CX500 performance with their snapshots goes to 40%,VeriTest: Network Appliance FAS3020 and EMC CX500: Comparison of Usability and Performance,2600,2730,2860,2990,3120,3250,
36、3380,3510,Elapsed Time in Seconds,CX500 R & W,FAS3020 R & W,NetApp的优势高可靠性,冗余的双控制器 冗余的前后端链路 RAID-DP SNIA认可的RAID实现，但是没有RAID6所带来的性能严重的开销 允许一个RAID组中的任意两个硬盘出现故障，提供比 RAID 1, 10, 0+1更高的可靠性，但是不需要100%的磁盘的额外开销 VMware整合了多个物理服务器，因此后端存储提供更高的可靠性。VMware建议采用RAID0+1的方式，但是这种方式会带来额外的空间开销（增加了成本）,NetApp的优势冗灾,VMware不提供数据的远程复制功能 建议采用基于存储的数据复制功能 NetApp SnapMirror 在level 0的基准复制后，以后的复制支持传输变化的数据块（而不是变化的文件） 提供多种复制方式（双向，一对多，多对一，以及级联方式） 同步，半同步和异步 传输链路可以是IP或者，不需要额外的硬件设备 非常简单地打破镜像，resync和翻转同步 VMWorld 06所建议的功能,QA,