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Installing Oracle on Enterprise Linux 27
Modifying the CSS Timeout of 11gR1 Clusterware
for Proper LUN Failover of MD3000i/MD32xxi
When a Dell MD3000i/MD32xxi iSCSI storage RAID controller module fails,
the total LUN failover time to the remaining RAID controller module may
exceed 200 seconds. The default CSS disk timeout for Oracle 11g R1
version 11.1.0.7 is 200 seconds. To ensure that the MD3000i/MD32xxi
LUN failover procedure functions correctly, increase the CSS disk timeout
to 300 seconds.
To increase the CSS disk timeout:
1
Shut down the CRS on all nodes except one. For more information, see
support.oracle.com/CSP/main/article?cmd=show&type=NOT&id=
309542.1.
2
On the running node, log in as user
root
and type:
$CRS_HOME/bin/crsctl set css disktimeout 300
3
Reboot all nodes for the CSS setting to take effect.