Meaning of Fabric Name Server rejected GPN_FT query.

[Telia BackOffice]

Hi

I recieve these on quite a lot of my servers.

0/6/1/1: Fabric Name Server rejected GPN_FT query.
Reason code: unable to perform request;
Explanation: FC-4 Type not registered.
This may indicate that the HBA port is not part of a zone.
Please check zone configuration on your switch.

Things are working, but I would like to know what they mean and how to fix any issue that might be present

[宋明哲]

I want to get it also,Because the syslog is full with it ;

[Víctor Cespón]

This is probably due to an incorrect zoning.
In one case documented here it was due to the switch having domain 2 and all the zones being defined with domain 1.

[Telia BackOffice]

I has to do with items disappearing from the nameserver.