河南中医药大学：《云计算与虚拟化技术 Cloud and virtualization technology》课程教学资源（课件讲稿，2019级）第07讲 Storage Devices and vSAN

云计算与虚拟化技术 第7讲: Storage Devices and VSaN 阮晓龙 3938213680/rxl@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息系统科研工作室 2021.10

云计算与虚拟化技术 第7讲：Storage Devices and vSAN 阮晓龙 13938213680 / rxl@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息系统科研工作室 2021.10

2 讨论提纲 a Storage basics 要重视数据中心的存储设计 存储阵列 Storage arrays: performance、RAD、SSDs、AFAs、ALUA a VSphere storage types Storage types at the ESXi logical level and physical level u Storage types at VM logical levels and physical level a vSphere storage contiguration FC storage、 iSCSI storage、 NFS Storage SIOC and storage DRS Advanced storage features o VMware VSAN VSAN的设计方案 VSAN的配置 可南中医药大学/阮晓龙/13938213680/htp// cloud xg. hactcm. edu.cn/htp/ww5 ucweb.cn

河南中医药大学 / 阮晓龙 / 13938213680 / http://cloud.xg.hactcm.edu.cn / http://www.51xueweb.cn 讨论提纲  Storage basics ◼ 要重视数据中心的存储设计 ◼ 存储阵列 Storage arrays：performance、RAID、SSDs、AFAs、ALUA  vSphere storage types ◼ Storage types at the ESXi logical level and physical level ◼ Storage types at VM logical levels and physical level  vSphere storage configuration ◼ FC storage、iSCSI storage、NFS storage ◼ SIOC and storage DRS ◼ Advanced storage features  VMware vSAN ◼ vSAN的设计方案 ◼ vSAN的配置 2

3 1. Storage basics 11要重视数据中心的存储设计 ¤存储是虚拟基础设施中最关键的部分 ■存储设计方案对于数据中心非常重要。 存储为整个集群及其所有ⅥM提供攴撑,并直接决定性能。 ■ VSphere许多高级功能依赖于共享存储,例如HA、DRS、FT、 VMware Site Recovery Manager ¤数据中心存储解决方案的基本要求:高可用、高性能、弹性扩展。 o Enterprise-class storage can be classified in different ways Direct-Attached Storage(DAS) Network Attached Storage(NAS the only solutions that can be used for running vms a Storage Area Network(SAN) Object-based storage/cloud storage could be used by other solutions(such as backup products 可南中医药大学/阮晓龙/13938213680/htp//cloudxg.hactcm.edu.cn/htp/www.5lxueweb.cn

河南中医药大学 / 阮晓龙 / 13938213680 / http://cloud.xg.hactcm.edu.cn / http://www.51xueweb.cn 1. Storage basics  存储是虚拟基础设施中最关键的部分。 ◼ 存储设计方案对于数据中心非常重要。 ◼ 存储为整个集群及其所有VM提供支撑，并直接决定性能。 ◼ vSphere 许多高级功能依赖于共享存储，例如HA、DRS、FT、VMware Site Recovery Manager等。  数据中心存储解决方案的基本要求：高可用、高性能、弹性扩展。  Enterprise-class storage can be classified in different ways: ◼ Direct-Attached Storage (DAS) ◼ Network Attached Storage (NAS) ◼ Storage Area Network (SAN) ◼ Object-based storage/cloud storage 3 1.1 要重视数据中心的存储设计 the only solutions that can be used for running VMs could be used by other solutions (such as backup products)

1. Storage basics 11要重视数据中心的存储设计 日⑧ H〓 容量性能 capacity performance Storage Network 带宽吞吐量延迟 bandwidth throughput lar Storage Array The esXi hosts and the vMs will be contending for the shared storage asset 可南中医药大学/阮晓龙/13938213680/htp// cloud xg. hactcm. edu.cn/htp/ww5 ucweb.cn

河南中医药大学 / 阮晓龙 / 13938213680 / http://cloud.xg.hactcm.edu.cn / http://www.51xueweb.cn 1. Storage basics 4 1.1 要重视数据中心的存储设计 The ESXi hosts and the VMs will be contending for the shared storage asset. 容量 capacity 性能 performance 带宽 bandwidth 吞吐量 throughput 延迟 latency

5 1. Storage basics 11要重视数据中心的存储设计 ¤仅考虑性能,存储通常被分为以下几个等级。 Tier 0 a Very high-performance storage, such as the All-Flash array(AFA). Tier 0 storage is getting more and more popular as the prices of Enterpriseclass SSDs are dropping. It provides unmatched lo performance Tier 1 or primary storage a This is usually the main storage and corresponds to the VMware side in different datastores Tier 2 or secondary storage a This is storage not(usually)used from VMware production environments. It stores online archives, backups, cold data, and so on ■Tier3: a This can be long-term and offline archival storage repositories, such as tapes,o or copies of backups on public cloud storage 可南中医药大学/阮晓龙/13938213680/htp// cloud xg. hactcm. edu.cn/htp/ww5 ucweb.cn

河南中医药大学 / 阮晓龙 / 13938213680 / http://cloud.xg.hactcm.edu.cn / http://www.51xueweb.cn 1. Storage basics  仅考虑性能，存储通常被分为以下几个等级。 ◼ Tier 0:  Very high-performance storage, such as the All-Flash Array (AFA).Tier 0 storage is getting more and more popular as the prices of Enterpriseclass SSDs are dropping. It provides unmatched I/O performance. ◼ Tier 1 or primary storage:  This is usually the main storage and corresponds to the VMware side in different datastores. ◼ Tier 2 or secondary storage:  This is storage not (usually) used from VMware production environments. It stores online archives, backups, cold data, and so on. ◼ Tier 3:  This can be long-term and offline archival storage repositories, such as tapes, or copies of backups on public cloud storage. 5 1.1 要重视数据中心的存储设计

6 1. Storage basics 11要重视数据中心的存储设计 ¤ ESXI HOs能够支持的存储类型有 Local Storage Local SAS/SATA/SCSI storage ■ Fibre channel a Fibre channel over Ethernet(Fcoe SCSI using software and hardware initiators Shared Storage a NAS (specifically, nfs InfiniBand 可南中医药大学/阮晓龙/13938213680/htp// cloud xg. hactcm. edu.cn/htp/ww5 ucweb.cn

河南中医药大学 / 阮晓龙 / 13938213680 / http://cloud.xg.hactcm.edu.cn / http://www.51xueweb.cn 1. Storage basics  ESXi Host能够支持的存储类型有： ◼ Local SAS/SATA/SCSI storage ◼ Fibre Channel ◼ Fibre Channel over Ethernet (FCoE) ◼ iSCSI using software and hardware initiators ◼ NAS (specifically, NFS) ◼ InfiniBand 6 1.1 要重视数据中心的存储设计 Shared Storage Local Storage

1. Storage basics 1.2 Storage array 什么是存储阵列 Storage arrays? 通过华为交互式3D在线体验华为存储产品 https://info.supporthuaweicom/storage/3d-center 华为存储基础课程 可南中医药大学/阮晓龙/13938213680/htp// cloud xg. hactcm. edu.cn/htp/ww5 ucweb.cn

河南中医药大学 / 阮晓龙 / 13938213680 / http://cloud.xg.hactcm.edu.cn / http://www.51xueweb.cn 1. Storage basics 7 1.2 Storage arrays • 通过华为交互式3D在线体验华为存储产品 https://info.support.huawei.com/storage/3d-center • 华为存储基础课程 https://www.bilibili.com/video/BV1Zt4y1a7Rj 什么是存储阵列 Storage arrays？

8 1. Storage basics 1.2 Storage array AFAS H Array flash memories flash and HdD 可南中医药大学/阮晓龙/13938213680/htp// cloud xg. hactcm. edu.cn/htp/ww5 ucweb.cn

河南中医药大学 / 阮晓龙 / 13938213680 / http://cloud.xg.hactcm.edu.cn / http://www.51xueweb.cn 1. Storage basics 8 1.2 Storage arrays AFAs flash memories Hybrid Array flash and HDD

9 1. Storage basics 1.2 Storage array Concerning the protocols used for frontend interfaces 前端接口面板 将磁盘阵列接入到虚拟化服务器或者存储网络中 时手 可南中医药大学/阮晓龙/13938213680/htp// cloud xg. hactcm. edu.cn/htp/ww5 ucweb.cn

河南中医药大学 / 阮晓龙 / 13938213680 / http://cloud.xg.hactcm.edu.cn / http://www.51xueweb.cn 1. Storage basics 9 1.2 Storage arrays Concerning the protocols used for frontend interfaces 前端接口面板 将磁盘阵列接入到虚拟化服务器或者存储网络中

10 VMware vSphere支持的存储接口及应用案例 Protocol Type of Interface speed Typical usage service Shared storage with limited host SAS block 6 or 12 Gbps scaling Block 8,16,32Gbps Shared storage, typically fo enterprises Shared storage, typically for FCoE Block 10, 25,40, 50, 100 Gbps enterprises and mid-sized businesses iSCSI Block 1,10,25,40,50,100 Shared storage Gbps NFS File 1,10,25,40,50,100 Shared storage GH

10 VMware vSphere 支持的存储接口及应用案例