Can two MHOs run different software versions?

[todd]

Hi,

I am setting up a Maestro home lab using two MHO-140 units. The two units were purchased secondhand at different times: MHO140-1 came with R80.20, and MHO140-2 came with R81.20.

I upgraded MHO140-1 to R81.10 while leaving MHO140-2 on R81.20.

When I connected MHO140-1 and MHO140-2 via port 48 (the sync port), I noticed that they successfully synchronized their configurations and formed a single unified orchestrator pair.
After building the complete Maestro topology with three SGMs, powering down one MHO still maintained redundancy successfully.

Does this mean running different software versions on paired MHOs is officially acceptable or supported?

Thanks,

Todd

[Chris_Atkinson]

Outside of upgrades scenarios - what would be the use case for this?

Also be aware starting in the R81.10 version, the major software version on the Orchestrator must be equal to or higher than the major software version on the managed Security Group

[todd]

It is true there is no use case for this scenarion.

Because My customer running R81.10 and I want to simulate upgrade from R81.10.

But I cannot reset MHO140-2 to R80.10. So I use this scenarion to practice upgrade to R82 🙂

[Dario_Perez · Accepted solution]

1. having different version is supported only for upgrade scenario only. run different version on same array is not officially supported. 
2. if you want to build a lab with SG, the MHO with lower version must be the highest version SG. is not supported to have higher version on SG than MHO

[todd]

Thank you for your information. This is very helpful.

It also clarified my question regarding operational issues when different versions coexist during the MHO upgrade.