HP StoreOnce Backup System Concepts and Configuration Guidelines (BB877-90913, November 2013)

Figure 30 Complex configuration with ports of different VTLs being presented to different fabrics,
Fabric 2 fails
Scenario 4, dual fabric with dual switches, not advised
The FC configuration is the same as scenario 3, but the VTLs are presented to a single port, which
means they are tied to a single switch within a single fabric. This configuration is not advised
because it compromises the B6200 autonomic failover facility.
FC configuration
• Dual fabrics
• Multiple switches within each fabric
• Zoning by WWPN
• Each zone to include a host and the required targets on the HP B6200 Backup system
• Equivalent ports from each node are connected to the same fabric, but are directed to different
switches
• Each port is connected to only one switch within one fabric
B6200 VTL configuration
• Library configuration is all drives presented entirely to a single port, either Port 1 or Port 2.
• Loss of a port, switch or fabric means that all access is lost to the VTLs that are dedicated to
that port, switch or fabric
56 Configuring FC to support failover in a StoreOnce B6200 Backup system environment