A service provider has implemented a VPLEX Metro cluster without VPLEX Witness and has implemented...

In a VPLEX Metro cluster without a VPLEX Witness and with a static rule set to “cluster-2 detaches”, the result of a WAN COM failure would be as follows:

Delay Timer: Initially, VPLEX starts a delay timer upon detecting the WAN COM failure.This timer allows for a temporary network issue to be resolved without immediate impact on I/O operations1.

Suspension of I/O: While the delay timer is active, VPLEX suspends I/O to all distributed devices on both clusters to prevent data corruption and ensure data integrity1.

Resumption of I/O: If the WAN COM connectivity is not restored within the expiration period of the delay timer, VPLEX will resume I/O operations on Cluster-2, as per the static rule set.I/O will remain suspended on Cluster-1 to maintain a consistent data state and prevent a split-brain scenario1.

This process ensures that data remains consistent and available on at least one cluster in the event of a WAN COM failure, aligning with the predefined static rule set and maintaining the integrity of the VPLEX Metro cluster operations.