An engineer must implement a Cisco UCS system at a customer site. One of the requirements is to implement SAN boot. The storage system maps the source WWPN to a unique LUN. Which method does Cisco recommend to configure the SAN boot?
A.
Define the vHBAs as bootable and leave the boot target definition empty.
B.
Create a SAN boot policy in which every initiator is mapped to a different target LUN.
C.
Define the vHBAs as bootable and leave the default values on the boot target definition.
D.
Create a SAN boot policy in which every initiator is mapped to the same target LUN.
It's a little tricky, I had to read it a few times but the correct answer is indeed D. While you have multiple zones consisting of FC vHBAs and storage target wwpns for SAN Fabrics A and B, you are ultimately booting off of the same boot LUN. Multiple paths to get to the same boot device which correspond with the same LUN ID.
B. Create a SAN boot policy in which every initiator is mapped to a different target LUN.
Recommended by Cisco: This is the safest and most scalable approach because:
Each server has its own dedicated LUN, ensuring isolation and avoiding conflicts.
Mapping initiators to unique LUNs is considered a best practice for SAN boot environments to prevent any possibility of corruption or boot issues.
Enterprise deployments generally prefer this method because it provides precise control over boot resources.
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