云计算与虚拟化技术 第7讲: Storage Devices 阮晓龙 13938213680/n@hactcm edu cn http://cloud.xg.hactcm.edu.cn http://www.51xueweb.cn 河南中医药大学信息管理与信息系统教研室 信息技术学院网络与信思系统科研工作室 20194
2 讨论提纲 a Storage Design Importance of Storage Design Examining Shared Storage Fundamentals Explaining RAID m Understanding VSAN o Storage Array Fibre channel u Fibre Channel over Ethernet(FCoE) iSCS Network File System(NFS) a Case (FC-SAN/iSCSI/NFS) 河南中医药大学/阮晓龙/13938213680/htp/cloudxg.hactcm.edu.cn/http:/www5ucwebcn
3 1.Storage Design 1.iMportance of Storage Design a Storage design has always been important, but it becomes more so for virtualized intrastructure, for mission-critical applications, and for offerings based on Infrastructure as a Service(laaS a You can probably imagine why this is the case Advanced Capabilities o Many of vSphere's advanced features depend on shared storage; vSphere High Availability(HA), vSphere Distributed Resource Scheduler(DRS vSphere Fault Tolerance(FT), and some parts of VMware Site Recovery Manager all have critical dependencies on shared storage 河南中医药大学/阮晓龙/13938213680/htp/cloudxg.hactcm.edu.cn/http:/www5ucwebcn
4 1.Storage Design 1.iMportance of Storage Design a You can probably imagine why this is the case Performance a People understand the benefits that virtualization brings--consolidation higher utilization, more flexibility, and higher efficiency o But often, people have initial questions about how vSphere can deliver performance for individual applications when it is inherently consolidated and oversubscribed o Likewise, the overall performance of the vms and the entire vSphere cluster both depend on shared storage, which can also be highly consolidated and oversubscribed 河南中医药大学/阮晓龙/13938213680/htp/cloudxg.hactcm.edu.cn/http:/www5ucwebcn
5 1.Storage Design 1.iMportance of Storage Design a You can probably imagine why this is the case Availability o The overall availability of your virtualized infrastructure, and by extension, the VMs running on that infrastructure, depend on the shared storage infrastructure o Designing high availability into this infrastructure element is paramount o If the storage is not available, vSphere ha will not be able to recover, and the∨Mswl‖ be affected 河南中医药大学/阮晓龙/13938213680/htp/cloudxg.hactcm.edu.cn/http:/www5ucwebcn