.SAN design reference guide Vol. 1-5 785350-001

Contents
I Architecture..............................................................................................15
1 SAN design overview............................................................................16
SAN solutions....................................................................................................................16
HP SAN implementations....................................................................................................17
SAN components...............................................................................................................18
Fibre Channel technology...................................................................................................18
Storage area networks........................................................................................................18
SAN infrastructure..............................................................................................................19
Fabrics.........................................................................................................................19
SAN scaling.................................................................................................................19
Fibre Channel switches.......................................................................................................19
SAN design approaches.....................................................................................................20
SAN design considerations.................................................................................................20
2 SAN fabric topologies...........................................................................23
Fabric topologies...............................................................................................................23
Routed SAN fabrics.......................................................................................................24
FCoE SAN fabrics.........................................................................................................24
Benefits........................................................................................................................24
Single-switch fabric............................................................................................................24
Switch models...............................................................................................................24
Benefits........................................................................................................................25
Cascaded fabric................................................................................................................25
Switch models...............................................................................................................26
Benefits........................................................................................................................26
Meshed fabric...................................................................................................................26
Switch models...............................................................................................................27
Benefits........................................................................................................................27
Ring fabric........................................................................................................................27
Switch models...............................................................................................................29
Benefits........................................................................................................................29
Core-edge fabric...............................................................................................................29
Core-edge fabric types...................................................................................................30
Switch models...............................................................................................................32
Benefits........................................................................................................................32
Topology data access.........................................................................................................32
Topology maximums...........................................................................................................33
B-series switches............................................................................................................33
C-series switches...........................................................................................................34
H-series switches...........................................................................................................34
Routed fabric topologies.....................................................................................................34
B-series Meta SAN........................................................................................................35
B-series Virtual Fabrics with IFR........................................................................................36
C-series VSANs with IVR................................................................................................36
H-series switches with TR................................................................................................37
FCoE fabric topologies.......................................................................................................37
Data availability................................................................................................................38
Levels..........................................................................................................................38
Considerations..............................................................................................................40
Topology migration............................................................................................................41
Nondisruptive migration.................................................................................................41
Contents 3