You must use the correct HBA device driver and firmware
levels for your Citrix XenServer hosts.
The HBA drivers are installed when you install the
Citrix XenServer software.
No external installation of the driver or firmware is required for
an HBA. The following websites provide current interoperability information
about supported device driver and firmware levels:
The following Citrix XenServer website
provides current interoperability information about supported device
driver and firmware levels, including the hardware compatibility list:
www.citrix.com