Dell Brocade Adapters - Manual (Page 171)

Brocade Adapters Installation and Reference Manual 143
53-1002144-01
Boot over SAN
4
NOTE
Fabric-based boot LUN discovery (Fabric Discovered) is not supported for booting from
direct-attached Fibre Channel targets.
• First Visible LUN - The host boots from the first LUN visible to the adapter that is
discovered in the fabric.
• User Configured LUNs - Allows the user to select and prioritize the remote target and
LUN for booting over SAN.
The User Configured LUNs table displays LUNs visible to the adapter. If you select this
option, up to four boot user-configured LUNs can be configured as boot devices. If you
select User Configured LUNs, the system will attempt to boot the first LUN in the table,
then each succeeding LUN in order.
NOTE
For mezzanine adapters only, if LUNs have been configured through another application,
such as a blade system management application, these are considered “pre-boot”
configured LUNs. In pre-boot configurations, up to eight total LUNs can be configured as
boot devices for HBAs and Fabric Adapter ports configured in HBA mode. Up to two LUNs
can be configured for CNAs and Fabric Adapter ports configured in CNA mode.
Click the Boot Device PWWN and LUN fields to edit WWNs. For the LUN to be accessible to
the port it must be bound to the LUN using the appropriate management or configuration
utility for the storage system. In addition, a zone set must be created on the attached
switch containing PWWN of the storage system port where the boot LUN is located and the
PWWN of the adapter port.
Click the up and down arrows to the right of the table to reorder boot devices in the table.
Click the delete symbol (X) to remove a device from the table.
5. Click OK to exit and save values.
All configuration values are stored to adapter flash memory.
For details in using HCM options to configure BIOS and boot over SAN options, refer to the
instructions for enabling boot over SAN using HCM in the Host Configuration chapter of the
Brocade Adapters Administrator’s Guide.
Configuring BIOS using BCU commands
Use the BCU commands to perform the following tasks:
• Enable BIOS, set port speed (HBAs and Fabric Adapter ports configured in HBA mode only),
and configure boot LUN information.
You must enable BIOS to support boot over SAN for an adapter port. If disabled, the host
system cannot boot from Fibre Channel disk drives. The default setting for the adapter boot
BIOS is enabled. It is recommended to enable BIOS on only one adapter port per host for
booting over SAN.
Use the following BCU command to enable BIOS, set port speed (if required), and configure
target PWWN and LUN values.
bcu bios --enable <port_id> [-s <speed>][-o <auto|flash|firstlun>[-p pos][-b
pwwn,lun*]
where: