Hi @Prakash M, Bhanu Thank you for posting your question on Microsoft Q&A and for using Azure services.
My understanding is that you are looking to create a manual failover, planned failover or force failover in Azure PostgreSQL hyperscale citus.
We don’t support it in Hyperscale (Citus). HA is fully automated, and we don’t offer an option for simulation.
Scheduled (planned) maintenance is done via planned failovers. You can configure scheduling preference for your cluster. Manage scheduled maintenance settings for Azure Database for PostgreSQL – Hyperscale (Citus).
Regards,
Oury