Storage is usually the most critical part of a virtual infrastructure, due to the need to provide enough performance and capacity for the entire cluster and all the workloads inside it. To provide features such as vSphere High Availability (HA), vSphere Distributed Resource Scheduler (DRS), and other cluster-related capabilities, you need common shared storage for all the ESXi hosts on the cluster. You might also want to have more storage per cluster, or use the same storage for other clusters as well.
This chapter details storage aspects of a virtual infrastructure, starting from local block-based storage and extending into shared block storage with Fibre Channel( FC), Fibre Channel over Ethernet (FCoE), Internet Small Computer System Interface (iSCSI) protocols, and NFS-based NAS storage.
In this chapter, we will learn about the following topics:
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