SAN Boot Target-Cisco folks, please advise

[K P SIM]

Hi:

Just want to know the difference of the following 2 configurations for SAN Boot for UCS with 2 WWPNs being presented from SAN Storage

Array: I know 1 will work, but how about Option 2????

Cisco UCS manual DOES NOT go into the details needed.

1.

SAN Primary, SAN Target Primary- vHBA-A - Fabric A

SAN Secondary, SAN Target Primary - vHBA-B - Fabric B

VS

2.

SAN Primary, SAN Target Primary - vHBA-A - Fabric A

SAN Secondary, SAN Target Secondary  - vHBA-B - Fabric B

Thanks.

KP Sim

[cpaggen]

I don't think the system will let you introduce a secondary target on the second vHBA if you haven't defined a primary target for that vHBA.

SAN boot works as follows if you have a policy with 4 targets and 2 vHBAs:

1. try primary vHBA, first (primary) target

2. if that doesn't work, try secondary target on primary vHBA

3. if that doesn't work, switch to secondary vHBA, primary target

4. if that doesn't work, try secondary target on secondary vHBA