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