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.

Description

Limit

Maximum number of disk stripes

12

Maximum number of failures tolerated

3

No of VSAN hosts per Cluster

8

Max number of IOps

120,000

Max number of Parallel vMotion per VSAN cluster

8

Max number of Parallel SvMotion per VSAN cluster

2

Max number of VMs per host

100

Max number of VMs per (evenly distrubted) VSAN cluster

800

Max number of disk groups per host

5

Max number of hard disks per disk group

6

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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Trackbacks/Pingbacks

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    […] 第三個問題是在講Scalibility。VSAN架構下,想開更多VM就加Host。想要更多空間就加HDD&SSD。完全是水平擴充的。隨著Host的增加,運算能力也增加。隨著HDD跟SSD的增加容量也增加。可設定的參數上限值也隨著增加。注意一下,目前beta版可設定的參數上限值是有限的。 http://www.davidhill.co/2013/09/vmware-virtual-san-scalability-limits-vsan/ […]

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