Until now we always mapped the LUNs to our hosts with matching Host LUN IDs. It didn’t take much effort for the storage guys to do this, but for our new storage array, matching the Host LUN IDs across all hosts is quite an effort for the storage team.
Now, I was wondering if it is necessary for the Host LUN ID to be the same across all hosts in the cluster. We never talk with out storage team about LUN IDs, we just use the NAA ID to make sure we’re talking about the same LUN.
I found two articles that contradict each other:
The official VMware KB states the LUN ID should be kept the same, because it could cause issues. But with such an official KB I’m never sure if they’re just saying it to avoid any discussion.
With the Yellow Bricks article, I’m concerned it might be outdated……
So….. Any insight on this?
EDIT: Question solved. Reading the comments, I’m convinced to stay with matching Host LUN IDs
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