300-320 Question #118: Real Exam Question with Answer & Explanation

The correct answer is A: IVR. IVR (Inter-VSAN Routing) allows traffic to be routed between different VSANs within a Fibre Channel fabric. Without IVR, VSANs are completely isolated from one another by design. IVR creates virtual zones that span VSAN boundaries, enabling a centralized storage resource (such as

Question

Which technology allows centralized storage services to be shared across different VSANs?

Options

AIVR
BFSPF
CFICON
DSANTap

Explanation

IVR (Inter-VSAN Routing) allows traffic to be routed between different VSANs within a Fibre Channel fabric. Without IVR, VSANs are completely isolated from one another by design. IVR creates virtual zones that span VSAN boundaries, enabling a centralized storage resource (such as a tape library) to be accessed by hosts in multiple VSANs without merging or collapsing those VSANs. FSPF is a path-selection protocol, FICON is a mainframe storage protocol, and SANTap is a Cisco data-replication service - none of them bridge VSAN boundaries.

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