Host & ASM Instance Name Mismatch (Again)

I’ve just installed 12c (I’m a little slow off the mark) and during the installation process I hit the screen below and thought, “That’s a good idea.”

Root Password 12c GI Install

However, near the end of the installation I noticed that the ASM instance numbers did not match up with the numeric identifiers in my hostnames as shown in the table below:

Hostname ASM Instance
c01db01 +ASM1
c01db02 +ASM3
c01db03 +ASM2

This looked familiar, but I still didn’t like it, so I addressed the issue by running -deconfig -force [-lastnode] on my database servers and then running manually in the order that matched the hostnames.

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