Dell Brocade Adapters - Manual (Page 45)

Brocade Adapters Installation and Reference Manual 17
53-1002144-01
Adapter features
1
• For Fabric Adapters, the default number of PFs depends on the mode configured for the port.
Refer to
Table 6 .
vHBA
Virtual HBAs (vHBAs) are virtual port partitions that appear as virtual or logical HBAs to the host
operating system. vHBAs are supported on Brocade HBAs, CNAs, and Fabric Adapter ports
configured in HBA or CNA mode. Multiple vHBAs are not supported, therefore you cannot create or
delete them from an adapter. The default PF associated with an HBA port, the FCoE function on a
CNA port or Fabric Adapter port configured in CNA mode, or a Fabric Adapter port configured in HBA
mode is vHBA.
HCM discovers and displays all vHBAs as “FC.” For Fabric Adapter ports set in CNA mode, vHBAs
display as “FCoE.”
The following are limitations of vHBAs:
• Multiple vHBAs per port are not supported in release v3.0.
• Target Rate Limiting (TRL) and Quality of Service (QoS) are not supported at the vHBA level
(only at the physical port level).
• Boot over SAN is not supported at the vHBA level (only at the physical port level).
vNIC
Virtual Network Interface Cards (vNICs) are virtual port partitions that appear as a virtual or logical
NICs to the host operating system. vNICs are supported on Brocade CNAs and on Fabric Adapter 10
GbE ports configured in CNA or NIC mode. You cannot create or delete vNICs for Brocade CNA
models, such as the 1010 and 1020. Multiple vNICs are only supported on Fabric Adapter ports
(vNIC create and delete functions are supported).
For Fabric Adapter ports, you can create up to four Ethernet PFs per port using the BCU vnic -create
command. Therefore, for a two-port Fabric Adapter, eight total vNics are possible. Due to ESX
memory limitations, a total of 4 vNICs in a VMware ESX system is supported.
For each vNIC, you can configure bandwidth in increments of 100 Mpbs. The minimum bandwidth
is 100 Mbps and maximum bandwidth per vNIC is 10,000 Mbps.The maximum bandwidth per port
is also 10,000 Mbps. Therefore, you can divide the 10,000 Mbps among all PFs configured. For
example, if you configure four Ethernet PFs for a Fabric Adapter port, you can assign 1, 250 Mbps
per PF to reach the 10,000 Mbps maximum.
HCM discovers and displays all vNICs for a physical port as “Eth.”
The following are limitations of vNICs:
• vNICs are not supported on Brocade HBA modules.
• Multiple vNICs are not supported on Brocade CNA models, such as the 1010 and 1020.
• Teaming is not supported between vNICs configured on the same port.
TABLE 6 Factory default physical function (PF) configurations for Fabric Adapter ports.
Mode PFs configured per
port PF configuration
per port
HBA 1 FC
CNA 2 Ethernet and FCoE
NIC 1 Ethernet