HP Surestore 64 FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availabil - Page 94
Core-to-Edge Fabric, by-14 Core-to-Edge fabric
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Planning Considerations for Fibre Channel Topologies Core-to-Edge Fabric A core-to-edge fabric consists of one or more Fibre Channel directors or switches acting as core elements that are dedicated to connecting other directors and switches (edge elements) in the fabric. Core directors act as high-bandwidth routers with connectivity to edge fabric elements. Figure 39 illustrates the core-to-edge fabric topology with two core directors and fourteen edge directors and switches (2-by-14 topology). Tier 2 Devices TM TM 10/100 RST TM PWR ERR Tier 1 Device Core Director TM 10/100 RST 31 29 27 25 23 TM 21 19 30 28 26 24 17 15 13 11 9 22 20 18 16 7 5 3 1 14 12 10 8 6 4 2 0 PWR ERR 10/100 RST TM PWR ERR TM TM 10/100 RST 31 29 27 25 23 TM 21 19 17 15 30 28 26 24 22 20 18 13 11 9 7 5 3 1 16 14 12 10 8 6 4 2 0 PWR ERR Edge Switches Core Director Tier 1 Device TM TM 10/100 RST TM PWR ERR 10/100 RST 31 29 27 25 23 TM 21 30 19 17 15 13 28 26 24 22 20 18 16 11 9 7 5 3 1 14 12 10 8 6 4 2 0 PWR ERR TM 10/100 RST 31 29 27 25 23 TM 21 30 19 17 15 13 28 26 24 22 20 18 16 11 9 7 5 3 1 14 12 10 8 6 4 2 0 PWR ERR 10/100 RST TM PWR ERR Edge Switches Interswitch Link Fabric Connection Tier 2 Devices Figure 39: 2-by-14 Core-to-Edge fabric 94 SAN High Availability Planning Guide