Dell Emulex Family of Adapters - Manual (Page 1448)

Boot for the Fibre Channel Protocol User Manual P010096-01A Rev. A
6. EFIBoot
Configure Adapter Parameters
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3. Press <Esc> to return to the EFI utility menu.
Change the PLOGI Retry Timer
This option allows you to set the interval for the port login (PLOGI) retry timer. This
option is especially useful for Tachyon-based RAID arrays. Under very rare occasions,
a Tachyon-based RAID array resets itself and the port goes offline temporarily in the
loop. When the port comes to life, the PLOGI retry interval scans the loop to discover
this device.
To change timer values:
1. On the Adapter Configuration menu, select 3. PLOGI Retry Timer and press
<Enter>. The screen shown in Figure 6-12 is displayed.
Figure 6-12 PLOGI Retry Timer Setup Screen
2. Use the up/down arrows to select a retry timer option and press <Enter>. The
screen is refreshed with the new value.
3. Press <Esc> to return to the EFI utility menu.
The time it takes for one PLOGI to scan the whole loop (if 126 ALPAs are on the
loop) is shown below:

50 msec takes 5 to 6 seconds per device

100 msec takes 12 seconds per device

200 msec takes 22 seconds per device
Change the Link Speed
Use this feature to change, or force, the link speed between ports instead of auto
negotiating. The supported link speeds depend upon the adapter. The screen
(Figure 6-13) will only show options that are valid for the current adapter.
Note: The Link Speed setting will be overwritten by the FC driver and will not take
effect during a regular boot into the local OS. Therefore, setting the link speed
from the BIOS utility should only be used with boot from SAN.