redundancy of VSAN in cisco flexpod design

[dliu_amanda]

In the cisco design documentation: https://www.cisco.com/c/en/us/support/docs/switches/nexus-5000-series-switches/118811-config-switch-00.html

Vsan 70 and Vsan 80 traffic separated left and right side, does that means if we lose right side N5548 or FI6248, we'll lose Vsan 80?

[balaji.bandi]

If you look at Physical Network, they are high available and dual homed with vPC enabled.

It covers most of the failure scenarios.

[amarino2]

Yes, if you lose the 5548 or 6248 on the right side you would lose VSAN 80. But the UCS Service Profile should have 2 vHBAs, first on Fabric A / VSAN 70 and the other on Fabric B / VSAN 80. 

The OS will see the 2 HBAs and you will need to confirm that multipathing (MPIO) is enabled and in use to take advantage of both fabrics / VSANs and for failover.