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Infiniband Switch upgrade precheck using patchmanager fails for FQN entry in /etc/hosts (Doc ID 1626161.1)

Last updated on MARCH 18, 2019

Applies to:

Exadata X4-2 Hardware - Version All Versions to All Versions [Release All Releases]
Exadata X3-2 Full Rack - Version All Versions to All Versions [Release All Releases]
Oracle Exadata Hardware - Version 11.2.3.1.1 and later
Information in this document applies to any platform.
NOTE:
This document is only accurate for release 1.3.3-2 of the IB switch.
Newer versions will not support FQDN, please see:
Ibswitches Doesn't Show Fully Qualified Hostname (Doc ID 1634077.1)

Symptoms

 Pre check for IB switch upgrade fails.

#patchmgr -ibswitches -upgrade -ibswitch_precheck

.
[FAIL     ] Entry in /etc/hosts for FQN b02sw-ib3.XXX.XXXXX.com does not match b02sw-ib3. ACTION: Modify and correct FQN entry in /etc/hosts
.
-OR-

[FAIL]     b02sw-ib3: 'hostname' doesn't return fully qualified domain name (FQDN). It returns: b02sw-ib3

Cause

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