Different sized datastores in a cluster

[Virtualduty]

All,

I would like to know if it is okay to keep different sized datastores in a datastore cluster. I understand it is possible technically , however I was reading Scot Lowe mastering vSphere 5.5 and it says it is not recommended. Could anyone explain as to why it is not recommended ?

Luns are coming from same storage and meets all the prereqs

[supreetkulkarni]

Per my understanding, there is no such requirement or recommendation. I have seen multiple environments with datastore clusters having datastores of different sizes.

Meeting the below prerequisites should suffice -

Datastore Cluster Requirements​

Abstract from the above link -

'A datastore cluster can contain a mix of datastores with different sizes and I/O capacities, and can be from different arrays and vendors'