What role does the global directory play in a VPLEX Geo configuration?

In a VPLEX Geo configuration, the global directory plays a crucial role as it provides a global namespace for distributed cache management across different locations. This allows the VPLEX system to maintain consistency and accessibility of cached data for virtual machines and applications that may be accessing storage from remote sites.

The global directory enables the VPLEX to handle metadata about the storage volumes and their associated virtual machines, thus facilitating coordinated access. This capability is essential in distributed environments where applications may span across geographic locations, ensuring that data remains coherent and efficiently accessible regardless of where the request originates.

Understanding the significance of the global directory in this context highlights its importance in maintaining performance and data integrity in a geo-distributed architecture, which is central to the VPLEX’s functionality.