How to calculate VM spec for Cisco ISE 3.2

[jewfcb001]

Hi All ,
I would like to know how to calculate VM spec for Cisco ISE 3.2 I see the URL below but I don't understand.
I have 2500 License.
https://www.cisco.com/c/en/us/td/docs/security/ise/performance_and_scalability/b_ise_perf_and_scale.html#reference_dfk_mjh_m5b

[Aref Alsouqi]

It depends on how many endpoints concurrent connections you would have in your environment, if they are up to 2500 concurrent sessions then I think you can go with the small-sized deployment.

[jewfcb001]

@Aref Alsouqi 
Thank you for response . And For VMware Virtual Machine Requirements . What is the model type for choose installation ?
SNS 3500 or SNS 3600 or SNS 3700 ?

[Aref Alsouqi]

Please look at the small-sized deployment in this guide:

Cisco Identity Services Engine Installation Guide, Release 3.2 - Cisco Secured Network Server Series Appliances and Virtual Machine Requirements [Cisco Identity Services Engine] - Cisco

Please note that enabling hyperthreading is not mandatory but highly recommended as it would increase transactions per second. Also, please note that the minimum data reading rate should be 300MB, and the minimum writing rate should be 50MB per second.