In the previous two chapters, we learned how to configure and manage access to FC, iSCSI, and NFS storage devices. Once we present storage devices to the ESXi host or a cluster of ESXi hosts, the business would start using them by hosting live virtual machine data on them.
As time progresses, more and more virtual machines are added to the mix and consume storage capacity in terms of space and throughput. Hence it becomes important to, not only fine-tune the process of placing the VMs on datastores backed by the correct type of storage tier, but also control the space and bandwidth utilization among all the virtual machines.
Storage I/O Control is one of the mechanisms to use ensure a fair share of storage bandwidth allocation to all VMs running on shared storage, regardless of the ESXi host the virtual machines are running on.
Storage DRS monitors datastore space...
