Switch Models; Benefits; Core-Edge Fabric (4 X 12) - HP StorageWorks 4000/6000/8000 - Enterprise Virtual Arrays Reference Manual
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For example, a 4 x 24 core-edge fabric indicates 4 core switches and 24 edge switches, for a total
of 28 switches.
Figure 9
shows a 4 x 12 core-edge fabric with 4 core switches and 12 edge switches, each connected
to the core with 4 ISLs.
Figure 9 Core-edge fabric (4 x 12)
.
Switch models
All HP Fibre Channel switches are supported for use in a core-edge fabric topology. Core-edge
topologies typically use the SN6000 Fibre Channel Switch; the 8/20q Fibre Channel Switch (or the
HP Simple SAN Connectivity Kit); SAN, Fabric, or Edge switches on the edge; and Core and Director
switches in the core. H-series core-edge topologies use the SN6000 Fibre Channel Switches as edge
and core switches (particularly if using the stacking capability) and 8/20q Fibre Channel Switches
as edge and core switches. When using switches with different Fibre Channel maximum speed
capabilities (such as 1 Gb/s, 2 Gb/s, 4 Gb/s, or 8 Gb/s), HP recommends using the higher-speed
switches in the core.
Benefits
The benefits of a core-edge fabric include:
Typically, a maximum of two hops between switches
Equal, centralized access to devices in the core
Increased fabric and switch redundancy with two or more switches in the core
Full many-to-many connectivity with evenly distributed bandwidth
Support for centralized and distributed data access needs
Ability to designate an optimally located core switch as the primary management switch, with
direct connections to all switches
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