Changing Windows account for Orion DB without down time

Dear all,

We have a requirement to use GMSA for Orion - > SQL connection due to below security mandate

- no Sql accounts allowed

- Windows account will have password expiry (365 days)

As GMSA feature is still on the feature request

https://thwack.solarwinds.com/t5/NPM-Feature-Requests/Provide-ability-to-Use-Group-Managed-Services-Account-gMSA-for/idi-p/568189

We are forced to use Windows account without password expiry (no exemptions were allowed on this). 

Current options: (requires downtime)

So as part of annual maintenance before the password get expired. we to  need to run config wizard on all polling engines (10) which require monitoring downtime 

We are looking for some pointers, how we can achieve the password rotation without downtime

Environment: SAM 2020.2, NPM 2020.2,NCM 2020.2

tony.johnson  serena