VMware Virtual SAN Scalability Limits – VSAN

I have had a few questions off people recently asking what are the scalability limits of the new VMware Virtual SAN.  I thought I would post a quick table to show these.



Maximum number of disk stripes


Maximum number of failures tolerated


No of VSAN hosts per Cluster


Max number of IOps


Max number of Parallel vMotion per VSAN cluster


Max number of Parallel SvMotion per VSAN cluster


Max number of VMs per host


Max number of VMs per (evenly distrubted) VSAN cluster


Max number of disk groups per host


Max number of hard disks per disk group


Hopefully by providing these numbers, if you are thinking about implementing VMware Virtual SAN in your environments it will help you with the design.

Note: Please remember that with the release of VMware vSphere 5.5, the VMware Virtual SAN product is in public beta (meaning it is not supported in production) and that these limits will change when the product is released for production support.

If you want to read more information on how to install and configure VMware Virtual SAN click here to read my previous articles.

Duncan Epping has also written a nice article on design considerations on VMware Virtual SAN.



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