HP StorageWorks 4000/6000/8000 .HP StorageWorks SAN Design Reference Guide, Pa - Page 190

Server Bay 1 Server Bay 2 Server Bay 3 Server Bay 4 Server Bay 5 Server Bay 6 Server Bay 7 Server Bay 8 Server Bay 9 Server Bay 10 Server Bay 11 Server Bay 12 Server Bay 13 Server Bay 14 Server Bay 15 Server Bay 16 N_Port (host) Server HBA ports, N_Ports c-Class BladeSystem Access Gateway F_Port (virtual) c-Class BladeSystem Access Gateway Default server to uplink mapping (2:1) Server 1,2 9,10 3,4 11,12 5,6 13,14 7,8 15,16 Uplink 1 2 3 4 5 6 7 8 Uplink 1 N_Port (NPIV) Uplink 2 N_Port (NPIV) Uplink 3 N_Port (NPIV) Uplink 4 N_Port (NPIV) Uplink 5 N_Port (NPIV) Uplink 6 N_Port (NPIV) Uplink 7 N_Port (NPIV) Uplink 8 N_Port (NPIV) F_Port (NPIV) F_Port (NPIV) F_Port (NPIV) F_Port (NPIV) F_Port (NPIV) F_Port (NPIV) F_Port (NPIV) F_Port (NPIV) Blade enclosure with 16 servers FC switch with NPIV support 25318a Figure 49 Brocade 4Gb SAN Switch for HP c-Class BladeSystem in Access Gateway mode . NOTE: The uplink ports (N_Ports) in Figure 49 are from the AG, not the hosts. Failover policy and failback policy AG mode supports the failover and failback policies (enabled by default), which you can configure on a per-port basis. The failover policy enables automatic remapping of hosts to other online N_Ports, if N_Ports go offline. It evenly distributes hosts among the available N_Ports. This policy ensures a smooth transition with minimal traffic disruption when a link fails between an N_Port on the AG and an F_Port on the external fabric. The failback policy automatically routes hosts back to the original N_Ports when they come online. NOTE: When a failover or failback occurs, hosts must be logged back in to resume I/O. 190 Heterogeneous server rules