HP Virtual Connect Flex-10 10Gb Ethernet Module for c-Class BladeSystem - Manual (Page 105)

Server management 105
Requested Calculation Allocation + remainder
FlexNIC b 2Gb (2/12)*10Gb = 1600Mb 1700Mb
FlexNIC c 4Gb (4/12)*10Gb = 3300Mb 3300Mb
FlexNIC d 5Gb (5/12)*10Gb = 4100Mb 4100Mb
2. Every FlexNIC that is linked must be allocated at least 100Mb. For example, if four FlexNICs on a
given port have requested bandwidth settings of 2Gb, 8Gb, Auto, and Auto, their allocated
bandwidth is as shown in the table below. In this example, 100Mb must be allocated to the two
FlexNICs set to "Auto" because no bandwidth would remain after allocating 2Gb and 8Gb to the
first two FlexNICs. The two FlexNICs set for 2Gb and 8Gb requested bandwidth are allocated a
proportion of the 9800Mb remaining after the two FlexNICs set to "Auto" receive 100Mb. In this
example, there is a remainder of 100Mb, and that remainder is assigned to the FlexNIC whose
allocated bandwidth differs the most from its requested bandwidth.
Requested Calculation Allocation + remainder
FlexNIC a 2Gb (2/10)*9800Mb = 1900Mb 2000Mb
FlexNIC b 8Gb (8/10)*9800Mb = 7800Mb 7800Mb
FlexNIC c Auto 100Mb 100Mb
FlexNIC d Auto 100Mb 100Mb
PXE settings
Virtual Connect Manager v1.20 and higher supports three PXE options:
• Enable—VC Manager sends a configuration update to the mezzanine NIC or embedded NIC
associated with the port to enable PXE operations.
• Disable—VC Manager sends a configuration update to the associated mezzanine NIC or embedded
NIC to disable PXE operations.
• Use BIOS—Current BIOS settings are used for embedded NICs and mezzanine NIC PXE operations.
VC Manager makes no changes to the current settings.
HP BladeSystem c-Class server blades have a factory default configuration for PXE to be enabled on
embedded NIC 1 only and this is included as the last entry in the RBSU IPL priority list (boot order). VC
Manager and the BIOS limit the number of PXE enabled embedded NICs to one. However, additional
NIC ports from a mezzanine adapter can be enabled simultaneously using the "Use BIOS" settings.
All mezzanine NIC ports can be enabled for PXE booting at the same time, along with one embedded
NIC port. If one or more mezzanine NIC ports are enabled for PXE booting, the user should review the
RBSU IPL list to validate or update the boot order priority.
If you need to enable PXE on more than one NIC port, you must set all of the NICs' PXE configuration
option in the VC Manager to "Use BIOS", and configure the individual PXE NIC settings using RBSU: F9
during POST to configure an embedded NIC, and F1 during POST to configure the mezzanine NIC ports.
After all of the selected NIC ports are PXE enabled, you must configure the boot order using the RBSU
boot order settings.
Only the first FlexNIC on each physical port of a Flex-10 device can be used for PXE boot. Virtual
Connect cannot enable PXE boot on the remaining FlexNICs of a physical port.