1. Install the failover QLogic multipath driver.
2. Before mapping any LUNs to the host, open the SANsurfer GUI and choose the first port.
3. Select the persistent binding tab and select the check box under "Bind All" and choose a target
ID for each of the targets mapped and select Save.
4. Perform a similar binding on the other HBA port.
5. Map the LUNs from the VSM to this host and scan for the virtual disks at the host using the
hp_rescan -a utility.
6. Refresh the SANsurfer GUI and change the target ID of one target (for example, change it to 3).
Observe that the rest of the targets are grayed out.
7. Create a new initrd image using mkinitrd <initrd image path> <kernel_version>.
8. Edit the file /boot/grub/menu.lst to boot with the new initrd image and reboot. During the
reboot, observe that the new target ID is used for all the LUNs. This can be verified when we
display all the LUNs using lssd. On subsequent reboots the device IDs should not change.
OpenVMS multipathing
Multipathing is integrated with the operating system.
Solaris 9 multipathing
This procedure configures a Solaris 9 server for use with SVSP:
1. Enable MPxIO:
a. Install the StorEdge Foundation Suite (use the install_it script).
b. Edit the /kernel/drv/scsi_vhci.conf file and change mpxio-disable=”yes” to
mpxio-disable=”no”.
2. Disable AutoFailback:
a. Open the /kernel/drv/scsi_vhci.conf file in a text editor.
b. Disable the automatic failback capability by changing the auto-failback entry to:
auto-failback="disable";
c. Save and exit the file.
d. Perform a reconfiguration reboot:
# touch /reconfigure
# shutdown -g0 -y -i6
3. Verify the system is working:
# cfgadm –al
# devfsadm –Cv
# format (to see all the volumes mapped)
4. Make sure you are using the correct HBA driver.
Solaris 10 multipathing
This procedure configures a Solaris 10 server for use with SVSP:
Enterprise Virtual Array Cluster Administrator Guide 27
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