Dell Emulex Family of Adapters - Manual (Page 1452)

Boot for the Fibre Channel Protocol User Manual P010096-01A Rev. A
6. EFIBoot
Configure Boot Parameters
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256 is the default, and typical, number of LUNs in a device.
3. Press any key to return to the configuration menu.
Set Up Boot Target Scan
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.
To set up a boot target scan:
1. On the Boot Configuration menu, select 3. Boot Target Scan and press <Enter>. The
screen shown in Figure 6-17 is displayed.
Figure 6-17 Boot Scan Options Screen
2. Use the up/down arrows to select a boot scan setting and press <Enter>.
The boot scan options are:

Boot Path from NVRAM Targets – Boot scan discovers only LUNs that are
saved to the adapter’s non-volatile random access memory (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.

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 EFI system firmware or boot
code. The value of this variable can be changed either by using the menu in