HP StoreOnce 4430 HP StoreOnce Backup System Concepts and Configuration Guidel - Page 42
General Fibre Channel configuration guidelines, Switched fabric
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General Fibre Channel configuration guidelines NOTE: The illustrations in this section show single node products (HP StoreOnce 4500, 4700, 4210 and 4220, and 4420 and 4430). Additional configuration requirements apply with the HP StoreOnce B6200 Backup system to support autonomic failover. For examples that illustrate multi node products (HP StoreOnce B6200) see Configuring FC to support failover with the HP StoreOnce B6200 Backup system. Switched fabric A switched fabric topology utilizes one or more fabric switches configured in one or more storage area networks (SANs) to provide a flexible configuration between several Fibre Channel hosts and Fibre Channel targets such as the StoreOnce appliance virtual libraries. Switches may be cascaded or meshed together to form large fabrics. Figure 21 Fibre Channel, switched fabric topology StoreOnce does not implement any selective virtual device presentation, and so each virtual library will be visible to all hosts connected to the same fabric. It is recommended that each virtual library is zoned to be visible to only the hosts that require access. Unlike the iSCSI virtual libraries, FC virtual libraries can be configured to be used by multiple hosts, if required. 42 Fibre Channel considerations