2 SAN fabric topologies
This chapter discusses HP standard SAN fabric topologies. It describes the following topics:
• Fabric topologies, page 35
• Routed SAN fabrics, page 36
• FCoE SAN fabrics, page 36
• Single-switch fabric, page 36
• Cascaded fabric, page 37
• Meshed fabric, page 39
• Ring fabric, page 40
• Core-edge fabric, page 42
• Topology data access, page 46
• Topology maximums, page 46
• Routed fabric topologies, page 48
• FCoE fabric topologies, page 52
• Data availability, page 53
• Topology migration, page 58
Fabric topologies
A SAN fabric topology defines the arrangement of Fibre Channel switches in a fabric. This section
describes the HP-supported SAN fabric topologies.
There are three approaches to designing a SAN. You can implement:
• An HP standard SAN fabric topology design
• A subset or variation of an HP standard SAN fabric topology design
• A custom SAN fabric topology design
Regardless of which approach you use, the SAN design must adhere to the SAN design rules described
in the following chapters:
• “H-series switches and fabric rules” on page 83
• “B-series switches and fabric rules” on page 93
• “C-series Fibre Channel and FCoE switches and fabric rules” on page 135
• “M-series switches and fabric rules” on page 157
• “SAN fabric connectivity and switch interoperability rules” on page 167
• “Heterogeneous server rules” on page 185
• “MSA storage system rules” on page 235
• “EVA storage system rules” on page 247
• “XP and VA storage system rules” on page 263
SAN Design Reference Guide 35
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