Installation guide

Boot device support
13
Introduction
◆ In virtualization environments, where several physical storage
and network links are commonly required.
The installation of the QLogic FCoE CNA provides the host with an
Intel-based 10 gigabit Ethernet interface (using the existing in-box
drivers), and an QLogic Fibre Channel adapter interface, which
requires the installation of the supported driver revision.
Following installation of the proper driver for the FCoE CNA, the
Fibre Channel interface will function identically to that of a standard
QLogic Fibre Channel HBA, as the FCoE simply encapsulates Fibre
Channel traffic within ethernet frames. As such, FC-based content
within this document also applies directly to the QLogic FCoE CNAs.
In-depth information about FCoE and its supported features and
topologies can be found in the "Fibre Channel over Ethernet (FCoE)"
chapter of the EMC Networked Storage Topology Guide, available
through E-Lab Interoperability Navigator at:
http://elabnavigator.EMC.com.
Boot device support
Linux hosts using QLogic adapters have been qualified for booting
from EMC storage array devices interfaced through Fibre Channel as
specified in the EMC Support Matrix.
The Symmetrix
®
or CLARiiON
®
device that is to contain the Master
Boot Record (MBR) for the host must have a lower logical unit
number (LUN) than any other device visible to the host. This device
must be mapped as /dev/sda by the Linux operating system for the
boot to succeed from the device.
Refer to Chapter 7, ”Configuring a Boot Device on an EMC Storage
Array,” for further information on booting from the SAN.troduction