VMware Virtual SAN Sizing Tool
Just before VMworld 2014 VMware released the Virtual SAN Sizing Tool. It’s now live and available to the general public.
The Virtual SAN Sizing Tool provides assistance for design considerations and automates storage sizing calculations for Virtual SAN infrastructures. All you will need to do is provide a few virtual machine inputs based on capacity, performance, and availability requirements.
The purpose of this tool is to help determine the hardware specifications for hosts in a Virtual SAN cluster required to run a set of virtual machines defined by a set of input characteristics. These important assumptions should be understood before using this tool:
- All hosts in the cluster are assumed to have an identical hardware profile, i.e. numbers of hard drives and flash devices, amount of physical RAM, and number of CPU cores.
- All virtual machines are assumed to be identical in storage characteristics, i.e. number of VMDKs, size of VMDKs (assumed identical for all disks), number of snapshots, and virtual memory size.
- All virtual machines are assumed to have the same Virtual SAN policy, i.e. number of failures to tolerate and number of disk stripes per object.
The tool is designed so that you can easily vary inputs to see the impact on the sizing output, thus allowing you to iterate manually for more sophisticated analyses.
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