HP StorageWorks SAN Virtualization Services Platform administrator guide (5697-0204, January 2010)

HP-UX multipathing
HP-UX 11iv2
NOTE:
Secure Path requires a right-to-use license per server.
Secure Path for HP-UX 11iv2 is no longer available, therefore support is only available to existing
users that have Secure Path.
HP-UX 11iv3
Use native multipathing.
Linux multipathing
NOTE:
Only the QLogic multipathing driver is supported at this time.
1. Go to http://h18006.www1.hp.com/products/sanworks/softwaredrivers/multipathoptions/
linux.html.
2. Select the QLogic driver.
3. Select the RedHat or SUSE Linux operating system.
4. Click Download for that product. Optionally, you can select the correct product description to
verify you made the correct selection, and download from that page.
5. Read and print the readme file included with the downloaded driver. The file contains installation
instructions and any limitations.
After installing the multipath drivers, it is a good idea to verify the paths between the server and the
DPM. Enter the following command:
[prompt]# hp_rescan –a
In response, you should see a path through both ports to every attached device.
If you encounter an issue with the Linux device paths changing between server power cycles because
the persistent binding is not configured correctly, use the following procedure:
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.
Adding devices to the domain38