RHV - What is the maximum size of single LUN supported for Storage Domain for VMs

Latest response

As per following KB, we can understand any limitation on the number of Storage Domains per Data Center

https://access.redhat.com/solutions/441203

However, What is the maximum size of single LUN supported for Storage Domain for VMs ?

Responses

We have been running RHV since the early 2.1 beta. Over the past 8 years we have stabilized on a 4TB LUN size for building general purpose storage domains.

Remember, if you are going to use an enterprise class storage frame for FC the LUN getting presented to RHV is usually an abstraction of the real storage so the size doesn't matter too much. More FC LUNs typically means more paths to evaluate/enumerate and that can create some stress on the system during bootup or when a LIP/rescan occurs and the HBA's need to be re-evaluated.