8–Configuring FCoE in a Linux Environment
Boot-from-SAN
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9. Set the SAN boot device (QLogic adapter for BIOS; fibre disk for UEFI) at
the top of the boot order.
10. To configure a multipath/load-balanced boot-from-SAN configuration:
a. Connect the second adapter port, as shown in Figure 8-13.
b. Modify the storage array configuration to present the primary and
alternate boot LUNs to both storage array controllers.
c. Modify switch zoning to ensure that the second adapter port has
access to both storage array controllers.
d. Enable the RHEL 5 dm-multipath MPIO service; or install a storage
array vendor multipath solution on the RHEL 5 operating system.
e. Repeat Steps 4 or 5 to configure the a second adapter port to provide
failover for the boot-from-SAN device.
For more information about configuring RHEL 5 for boot-from-SAN, refer to the
RedHat Installation Guide for the specific RHEL 5 version.
Booting from SAN Using a LUN Other Than LUN 0
Installing an RHEL 5 operating system into a nonzero LUN requires additional
configuration during the installation process.
To configure the operating system for a nonzero LUN:
1. During the RHEL 5 install process, select Configure advance boot loader
options on the Boot Loader Configuration screen, and then click Next
(Figure 8-17).
Figure 8-17. Select Advanced Boot Loader Options RHEL 5 Install
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