Dell Brocade 1020 Brocade Adapters Installation and Reference Manual - Page 191
Fabric-based boot LUN discovery
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Fabric-based boot LUN discovery 4 Linux Driver unloading will fail when the new driver package installs, To make the new driver become effective, perform the following steps. a. Change to the boot directory. All platforms - cd /boot b. Make a backup of the current RAMDISK image. #cp initrd-[kernel_version].img initrd-[kernel_version].img.bk c. Build the RAMDISK image. RHEL #mkinitrd -f initrd-[kernel_version].img [kernel_version] SLES #mk_initrd d. Reboot the system to load the new RAMDISK image. Solaris Reboot the system to initialize the new driver. VMware Reboot the system to initialize the new driver. Fabric-based boot LUN discovery This feature allows the Brocade adapter to automatically discover and boot from LUN information retrieved from the SAN fabric zone database and therefore not require the typical server boot interrupt and BIOS setup. When Brocade's Fabric-based boot LUN discovery is enabled, the host's boot LUN information is stored in a SAN fabric zone. This zone contains zone members that include the PWWN of the adapter port and PWWN and LUN WWN of the storage target. The adapter boot code will query the zone member list for the zone name that matches the adapter PWWN to determine the boot target and LUN. NOTE Fabric Based Boot LUN Discovery (auto discovery from fabric) is only applicable when configured in legacy BIOS mode for either UEFI-capable or non-UEFI capable system. Fabric Based Boot LUN Discovery is a unique Brocade adapter feature and is the default setting for the Brocade BIOS Boot LUN option. The feature does not apply to UEFI, as the UEFI stack implemented by the server vendor does not support boot LUN discovery from the fabric. This automated feature requires that the connected SAN fabric switch support the Get Zone Member List (GZME) command. Fabric-Based Boot LUN Discovery has been tested with Brocade switches (Fabric OS 6.2 and above) and Cisco SAN switches (SAN-OS 3.2.x and 4.1.x). Example configuration procedures are provided for Brocade fabrics following and Cisco fabrics on page 165. Brocade Adapters Installation and Reference Manual 163 53-1002144-01