.Part 1 Architecture HP SAN Design Reference Guide 785351-001

Migrating a meshed fabric SAN
This section describes migration paths for a meshed fabric SAN.
Meshed to ring
You can migrate a meshed fabric SAN to a ring fabric SAN by removing the cross-connected ISLs
and leaving the outer-connected ISLs as a ring. Use the available ports for device connections or
for redundant ring ISL connections.
Meshed to core-edge
Use the method described in “Cascaded to core-edge” (page 41).
Migrating a ring fabric SAN
This section describes migration paths for a ring fabric SAN.
Ring to meshed
If you have two ISLs between all switches in the ring fabric, re-cable each ISL so that it connects
to the appropriate switch in the meshed fabric you design.
Ring to core-edge
This migration is less disruptive if you have two ISLs between all switches in the ring fabric SAN.
Use the method described in “Cascaded to core-edge” (page 41).
42 SAN fabric topologies