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4) In this test configuration the iSCSI service was already enabled to execute on boot.
If the system displays “off” for runlevels 3 and 5 - then use the following command
to enable the service for boot:
# chkconfig open-iscsi on
Configuring disk timeout for Linux 2.6 Kernel SCSI devices
The following text was extracted from the Dell document:
“PS Series Storage Arrays – iSCSI Initiator and Operating System Considerations“
(Please refer to the ‘Revision Information’ section of this document for the URL).
The default disk timeout setting for Linux 2.6 kernels is 30 seconds. The desired value is
60 seconds.
Make the appropriate change for your operating system:
•For most Linux operating systems, use the following script to update the timeout
value:
for i in ‘ls /sys/class/scsi_disk‘;do echo "60" >
/sys/class/scsi_disk/$i/device/timeout;done
•For SUSE operating systems, use the following script to update the timeout value:
for i in ‘ls /sys/class/scsi_device‘;do echo "60" >
/sys/class/scsi_device/$i/device/timeout;done
You can add the appropriate script to your system start up script. The location of the
startup script varies with different Linux distributions; for example, /etc/rc.local,
/etc/init.d/rc.local.
If devices are connected after startup, run this script again to update the new devices’
timeout value.
Web-browser configuration
The group manager GUI application requires a java-enabled web browser. If java is not
installed, the group manager GUI will detect that condition and instruct the user to
download java.
Depending on the installed browser, the java plug-in may have to be added manually.
This setup used firefox version 3.0.12 and jre v1.6.0_20. Follow these steps to manually
add the java plug-in to the browser:
1) Download the latest java plug-in and install in /usr/java.