DNFS in non-RAC environment

  • From: Rodd Holman <rodd.holman@xxxxxxxxx>
  • To: oracle-l@xxxxxxxxxxxxx
  • Date: Mon, 19 Oct 2009 16:10:37 -0500

I'm trying to enable DNFS on a test system. It's the same one I described in another thread. 

OS: OEL 5.3 in an ESX vm.
DB: 11.2.0 (upgraded from 10.2.0.3)
Storage: BlueArc NAS NFS file system mounted with options specified in install docs. I've been using the Oracle White Paper "Direct NFS Client" and Doc 762374.1 to set it up. 

oranfstab:
****
server: <nas dns name>
path: <NAS IP>
local: <vm ip>
donotroute
mnt_timeout: 3600
export: /lgarsvm mount: /oradata/lgarsoel
****

I have copied the original libodm11.so to libodm11.so_stub
and made the symbolic link libodm11.so -> libnfsodm11.so
When I restart the database it hangs on mounting and generates a trace file in the udump directory: 
****
Dump file /usr/oracle/admin/lgarsoel/udump/lgarsoel_ora_16075.trc

*** 2009-10-19 14:38:47.885
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options 
ORACLE_HOME = /usr/oracle/product/11.2.0/db_1
System name:    Linux
Node name:      sfcolgarsvm
Release:        2.6.18-128.el5
Version:        #1 SMP Wed Jan 21 08:45:05 EST 2009
Machine:        x86_64
Instance name: lgarsoel
Redo thread mounted by this instance: 0 <none>
Oracle process number: 0
Unix process pid: 16075, image: oracle@sfcolgarsvm


*** 2009-10-19 14:38:47.887
2009-10-19 14:38:47.885: [ default]utgdv:2:ocr loc file /etc/oracle/olr.loc cannot be opened. errno 2 2009-10-19 14:38:47.888: [ default]utgdv:2:ocr loc file /etc/oracle/ocr.loc cannot be opened. errno 2 ~ 
"lgarsoel_ora_16075.trc" 20L, 804C
****
Based on metalink searches, the files listed are part of RAC installations. This is a non-RAC single instance installation. Can DNFS be used with non-RAC installations? What else needs to be done to make this work? 


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