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VMware vSphere 6.x Datacenter Design Cookbook - Second Edition by Hersey Cartwright

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Sizing datastores

A datastore is a logical representation of storage presented to an ESXi host where virtual machine files are stored. A datastore can be a VMFS-formatted volume, an NFS export, a Virtual Volume datastore, a Virtual SAN datastore, or a path on the local ESXi filesystem.

How to do it...

Design requirements, the virtual machine disk size, IOPS, and recovery are all factors that can determine the number of virtual machines to store on a single datastore. The size of the datastore is calculated based on the number of virtual machines per datastore and the size of the virtual machines:

  1. Determine the number of virtual machines per datastore based on the capacity, performance, and recovery requirements.
  2. Understand the impact the SCSI reservations ...

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