Dell Emulex Family of Adapters - Manual (Page 1487)

Boot for the Fibre Channel Protocol User Manual P010096-01A Rev. A
7. Configure EFIBoot via UEFI HII (Human Interface Infrastructure) in a UEFI 2.1 System
Configure Boot Parameters
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3. Type the maximum LUN value (between 1 and 4096) and press Enter.
The screen is refreshed with the new value.
Note: 256 is the default, and typical, maximum number of LUNs in a target device.
A higher number of maximum LUNs causes the discovery to take more
time.
4. Press <Esc> to return to the EFI utility menu.
5. Select Commit Changes and press <Enter>.
Change Boot Target Scan Method
This option is available only if none of the eight boot entries are configured to boot
from DID or WWPN. The Configure Boot Devices menu is used to configure up to eight
boot entries for fabric point-to-point, public loop, or private loop configurations. With
boot scan enabled, the first device issues a Name Server Inquiry.
The boot scan options are:

Boot Path from NVRAM Targets – Boot scan discovers only LUNs that are
saved to the adapter’s NVRAM. Select up to eight attached devices to use as
potential boot devices. Limiting discovery to a set of eight selected targets can
greatly reduce the time it takes for the EFIBoot driver to complete discovery.

Boot Path from Discovered Targets – Boot scan discovers all devices that are
attached to the FC port. Discovery can take a long time on large SANs if this
option is used.

Do not create a boot path.

Boot Scan from EFIFCScanLevel – Allows third-party software to toggle
between Boot Path from NVRAM and Boot Path from Discovered Targets by
manipulating an EFI system NVRAM variable. After the scan is set to
EFIFCScanLevel, the scan method can be changed without entering the EFI Boot
configuration utility.
If EFIFCScanLevel is selected, the scan is determined by the value of the
EFIFCScanLevel variable maintained by the UEFI system firmware or boot
code. The value of this variable can be changed either by using the menu in the
EFIBoot Configuration utility, or by using third-party software.
To change the boot target scan method:
1. From the Adapter Selection screen, select the adapter whose boot target scan
method you want to change and press <Enter>.