About "ins-40922 invalid scan name-unresolvable to IP Address"

When I installed rac11.2.0.4 on a virtual machine today, I encountered the error "ins-40922 invalid scan name-unresolvable to IP Address". In fact, this problem should not be very common, and it is generally not uncommon for people who have good English skills, the problem has basically been solved, but it is inevitable that a novice DBA who is not very good at English and is a little careless like me is still suffering from this problem, so let's keep a small record.

Problem: During RAC installation, the "Grid Plug and Play" step on the graphical interface reports the error ins-40922 invalid scan name-unresolvable to IP address. (The scan name is invalid and the IP address cannot be resolved)

The scan-name is invalid because of the problem.

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The scan name here must be consistent with the scan name in the hosts file. Otherwise, the system reports an INS-40922 error,

Modify the scan name and the hosts file to solve the problem ~~~~

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About "ins-40922 invalid scan name-unresolvable to IP Address"