HP Virtual Connect 8Gb 20-port Fibre Channel Module for c-Class BladeSystem - Manual (Page 174)

Virtual Connect server profiles 174
Requested Allocated
FlexNIC a 1Gb 1Gb
FlexNIC b Auto 3Gb
FlexNIC c Auto 3Gb
FlexNIC d Auto 3Gb
In cases where the requested bandwidth settings you specified for the four FlexNICs in a single physical port
exceed 10Gb, the following rules are applied in this order:
1. If FlexNICs with a "preferred" or "custom" value for requested bandwidth exceed 10Gb, each FlexNIC
is allocated bandwidth proportional to its requested bandwidth setting. For example, if four FlexNICs
on a given port have requested bandwidth settings of 1Gb, 2Gb, 4Gb, and 5Gb, their allocated
bandwidth is as shown in the table below. In this example, 200Mb remains after dividing the 10Gb
link. 100Mb is added to the two connections with the least bandwidth.
Requested Calculation Allocation + remainder
FlexNIC a
1Gb (1/12)*10Gb = 800Mb 900Mb
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
For FlexFabric configurations, the allocated bandwidth for the assigned FCoE connections takes precedence
over the Enet connections in all cases. This implies that if you add FCoE connection bandwidth to a server
port that has both Enet and FCoE connections on different PFs, the Enet connection has less bandwidth
according to the rules stated above.
Managing MAC, WWN, and server virtual ID
settings
Use the following screens to manage MAC, WWN, and server virtual ID settings:
• Ethernet Settings (MAC Addresses) screen (on page 175 )
o Select MAC addresses for server profiles