Wrong hostnames displayed during discovery of Infiniband Switch in EM Cloud Control

(Doc ID 1479677.1)

Last updated on AUGUST 02, 2012

Applies to:

Exadata Database Machine X2-2 Full Rack - Version Not Applicable and later
Exadata Database Machine X2-2 Half Rack - Version Not Applicable and later
Exadata Database Machine X2-2 Qtr Rack - Version Not Applicable and later
Exadata Database Machine X2-8 - Version Not Applicable and later
Information in this document applies to any platform.


While discovering a new Exadata Database Machine in EM Cloud Control 12c, the IB switch hostnames displayed are different from the actual hostnames of each IB switch.



a)  EM Console Discovery results page lists the IB Switch name as exduatsw-ib1.  Where as, the actual IB Switch Hostname is exdprdsw-ib1

b)  'ibnetdiscover' command also lists the wrong IB Switch Hostaname as exduatsw-ib1


# Topology file: generated on Tue Jul 31 15:13:10 2012
# Initiated from node 0021280001ceb126 port 0021280001ceb127

Switch    36 "S-0021284691fba0a0"        # "SUN DCS 36P QDR exduatsw-ib1.doe.mass.edu" enhanced port 0 lid 1 lmc 0
[19]    "S-002128469520a0a0"[32]        # "SUN DCS 36P QDR exduatsw-ib3.doe.mass.edu" lid 3 4xQDR
[21]    "S-0021284696f6a0a0"[32]        # "SUN DCS 36P QDR exduatsw-ib2.doe.mass.edu" lid 4 4xQDR

Switch    36 "S-002128469520a0a0"        # "SUN DCS 36P QDR exduatsw-ib3.doe.mass.edu" enhanced port 0 lid 3 lmc 0

c)  Testing each hostname using nlslookup shows:

[oracle@exduatdb01 onecommand]$ nslookup exduatsw-ib1
;; Got SERVFAIL reply from, trying next server

** server can't find exduatsw-ib1: SERVFAIL

Note : databasemachine.xml in this case had correct IB Switch hostnames which is exdprdsw-ib1 



The IB Switch hostname was changed after initial deployment of this Exadata rack from exduatsw-ib1 to exdprdsw-ib1


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