HP Superdome 2 Partitioning Administrator Guide (5900-2540, December 2012)

The minimal policy specifies the list of devices that are guaranteed to be connected at boot. Changes
to the minimal policy might be needed only for unusual OS configurations that use UEFI to access
one or more extra devices besides the boot device. In general, it is not required to change the
minimal policy because it is related to device connection before the UEFI Front Page. Also, it
increases the boot time for the typical OS boot using a boot option.
The expanded policy specifies the list of devices that are connected when a user interface is invoked
to reconfigure the system, such as the UEFI Shell. The expanded policy can be changed to ensure
that all the required devices are immediately available when such user interfaces are launched.
This is the UEFI default policy that includes the lowest numbered device bay and lowest numbered
I/O bay for the partition, and the boot option value. The expanded policy can be changed, if a
user wants to reduce or increase the amount of devices connected when launching one of the UEFI
user interfaces.
NOTE: If the expanded policy is changed from the default, and the partition configuration is
changed (Example: replace lowest numbered I/O bay), UEFI does not automatically update the
policy to take into account the configuration change. The policy is now considered to be user
managed, so appropriate manual updates to the policy might be necessary.
Confirming the Installed IO cards
After the system console is accessed, and the partition is booted to UEFI, the UEFI Shell command
info io can be used to display the contents of the I/O bays as shown:
info io
PLATFORM I/O INFORMATION
Enc
Enc Type
--- -------
1 Compute
11 IOX
I/O SLOT CAPABILITIES
Maximum
Enc/ PCIe Maximum
Bay/ Link Peak
Slot RC/RP Width Bandwidth
------ ----- ------- ---------
1/2/1 1/0 x8 8.00 GB/s
1/2/2 1/2 x8 8.00 GB/s
1/2/3 2/0 x8 8.00 GB/s
1/2/4 0/0 x8 8.00 GB/s
1/2/5 0/2 x8 8.00 GB/s
1/2/6 2/2 x4 4.00 GB/s
1/2/7 2/3 x4 4.00 GB/s
11/2/1 2/0 x8 8.00 GB/s
11/2/2 2/2 x8 8.00 GB/s
11/2/3 0/2 x8 8.00 GB/s
11/2/4 0/0 x8 8.00 GB/s
11/2/5 1/0 x8 8.00 GB/s
11/2/6 1/2 x8 8.00 GB/s
I/O SLOT CONFIGURATION
Starting Current
Enc/ PCI Seg/ PCIe Current
Bay/ Bus/Dev Link Peak I/O
Slot RC/RP (hex) Width Bandwidth Slot State
------ ----- -------- ------- --------- ------------
1/2/1 1/0 05/00/00 x8 8.00 GB/s Unpopulated
1/2/2 1/2 05/00/02 x8 8.00 GB/s Unpopulated
1/2/3 2/0 00/08/00 x8 8.00 GB/s Unpopulated
Booting to UEFI and preparing for Operating System installation 57