Virtual SANs
Virtual SAN (VSAN) technology partitions a single physical SAN into multiple VSANs. VSAN capabilities enable Cisco MDS 9000 NX-OS to logically divide a large physical fabric into separate, isolated environments to improve Fibre Channel SAN scalability, availability, manageability, and security. For mainframe environments, VSANs facilitate true hardware-based separation of FICON and open systems.
Each VSAN is a logically and functionally separate SAN with its own set of Fibre Channel fabric services.
This partitioning of fabric services greatly reduces network instability by containing fabric reconfiguration settings and error conditions ...
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