Systems and methods for non-disruptive planned failover within a cross-site storage system having bidirectional synchronous replication

A distributed storage system comprising:

• one or more processing resource;
• and
• one or more non-transitory computer-readable medium, coupled to the one or more processing resources, having stored therein instructions that when executed by the one or more processing resource cause the one or more processing resources to:
• establish bi-directional synchronous replication between one or more members of a first consistency group (CG1) of a primary storage site and one or more members of a second consistency group (CG2) of a secondary storage site with each storage site having read/write access while maintaining zero recovery point objective (RPO) and Zero recovery time objective (RTO);
• and
• initiate a non-disruptive planned failover to set a primary role change indicator for each member of the CG2 prior to changing a role for the secondary storage site from a secondary role to a primary role and prior to changing a role for the primary storage site from a primary role to a secondary role while maintaining in sync status of the bi-directional synchronous replication between the one or more members of the CG1 of the primary storage site and the one or more members of the CG2 of the secondary storage site and while maintaining zero data loss protection.