VSANs: • Partition a single SAN • Replicate fabric services • Isolate SAN traffic • Simplify Management
• Maximize investment in director class switches with high port counts
LSANs: • Connect SAN islands
• Facilitate sharing of SAN resources
• Join devices without merging fabrics
• Connect remote SAN sites
• Maximize investment in workgroup and director class switches
VSANs can be used to: Partition large SANs Isolate traffic per port, on a large, multi-port switch Create separate address spaces to enhance scalability and reliability
LSANs can be used to: Connect “SAN islands”
Share costly SAN storage devices Provide a connection to a remote disaster-recovery facility Preserve value of legacy switches