Flex-10 configuration – HP Virtual Connect 8Gb 20-port Fibre Channel Module for c-Class BladeSystem User Manual
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Virtual Connect server profiles 166
When an existing domain is upgraded to VC 4.10, you must power cycle the server to enable SR-IOV
support. During an upgrade, when a profile is detected that needs SR-IOV support and the server is powered
on, an event is logged to the VCM system log showing the profile name and the server bay. Example:
2012-11-07T09:33:19-06:00 VCEFXTW210600GN vcm_svr: [PRO::6044:Info] SR-IOV
Virtual Functions added to powered on server. SR-IOV will not be available
until server is rebooted. : Profile: p_sriov, Server bay: 1
Virtual Connect does not send traffic back on the same downlink port on which it was received. This means
that if two or more VMs are using VFs on the same PF on the host, they are not able to communicate with each
other over those VFs.
If a server profile has Ethernet connections that do not map to the third PF, the adapter distributes the VFs
among the PFs that do exist and no system log entry is generated.
Flex-10 configuration
Network administrator
For each Virtual Connect network, the network administrator can set a "Preferred" and "Maximum" speed for
FlexNICs that connect to that network. FlexNICs cannot connect to a network at a speed higher than the
maximum speed set by the network administrator for that network. The "preferred" speed setting is the speed
recommended by the network administrator for any FlexNIC that attaches to that network. The server
administrator can choose to follow or disregard this recommendation.
The network administrator can change these two settings by clicking the Advanced button on the create/edit
network screen. For more information, see "Multiple Networks Link Speed Settings (on page
)."
Server administrator
The server administrator can configure a requested bandwidth for every connection in a server profile. Virtual
Connect can control the link speed of FlexNICs but cannot control the link speed of traditional NICs.
The server administrator has four choices for Requested Bandwidth for each connection:
1.
Preferred. Choosing "Preferred" sets the requested bandwidth equal to the bandwidth recommended
by the network administrator's "Preferred" speed setting for that network. If the administrator has not
configured a preferred bandwidth for the network, this setting is treated the same as "Auto".
2.
Custom. Choosing "Custom" enables you to specify a number between 100Mb and 20Gb (in
increments of 100Mb) for requested bandwidth.
3.
Auto. Choosing "Auto" evenly distributes the available bandwidth between all connections assigned to
"auto".
4.
Disabled. VC determines the bandwidth speed.
For more information, see "Bandwidth assignment (on page
)."
Although the Port Speed Setting is available for all network connections in a profile, Virtual Connect can only
control link speed for Flex-10 NICs when they are connected to an HP Virtual Connect Flex-10 Module.
Virtual Connect cannot control the link speed of traditional NICs. Enabling specification of port speed
regardless of the underlying NIC allows the profile to configure the connection automatically when moved to
or from Flex-10 enabled servers and NICs.