Owner's Manual

46 Deployment Guide
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Performance
and stability
Unknown interface
type warning
appears in Oracle
alert file.
Poor system
performance.
The public interface is
configured as cluster
communications (private
interface).
Force cluster communications to the
private interface by performing the
following steps
on one node :
1 Log in as oracle .
2 Ty p e sqlplus "/ as sysdba"
at the command prompt.
The
SQL> prompt appears.
3 Enter the following lines at the SQL>
prompt:
alter system set
cluster_interconnects=
’<private IP address
node1>’ scope=spfile sid=
’<SID1>’
alter system set
cluster_interconnects=
’<private IP address
node2>’ scope=spfile sid=
’<SID2>’
Continue entering lines for each node
in the cluster.
4 Restart the database on all nodes by
typing the following lines:
srvctl stop database –d
<dbname>
srvctl start database –d
<dbname>
5 Open the
/opt/oracle/admin/< dbname >/bdump
/alert_<
SID >.log file and verify that
the private IP addresses are being used
for all instances.
Table 1-8. Troubleshooting (continued)
Category Problem / Symptom Cause Recommended Corrective Action