Lenovo ThinkServer RD540 User Manual download pdf (Page 62)

8200 Series Converged Network Adapter and 3200 Series Intelligent Ethernet Adapter Page 44

• Cisco Nexus 5000 Series NX-0S FIbre Channel over Ethernet Configuration Guide at:

http://www.cisco.com/en/US/docs/switches/datacenter/nexus5000/sw/fcoe/b_Cisco_Nexus_5000_Seri

es_NX-OS_Fibre_Channel_over_Ethernet_Configuration_Guide_.html.

• Cisco Nexus 5000 Series CLI Reference Manual

NIC Partitioning (NPAR)

NIC Partitioning (NPAR) is a member of QLogic's VMflex™ family of features that enable advanced

support for virtual environments. NPAR provides the ability to create multiple physical functions on the

PCIe bus that share a single physical port. Each physical function is a PCI endpoint (PCIe) that can have a

device driver attached to it.

The NPAR feature in 8200 and 3200 Series Adapters allows you to partition a single 10GbE NIC port into

up to four individual partitions with user-configurable bandwidth and interface type (personality). The

partitioning options are not limited to NIC as the name NPAR indicates; it extends to converged fabric

partitioning by enabling you to assign iSCSI or FCoE protocols to certain partitions.

For example, each partition can be either native Ethernet NIC, or configured to support iSCSI or FCoE

storage devices with different PCIe endpoint device class code. Both iSCSI and FCoE operate in full

hardware offload mode.

The QLogic NPAR solution is OS and switch agnostic, which means NPAR does not require a proprietary

switch to operate; however, the adapter does require the OS-specific QLogic adapter driver for each

supported protocol (NIC, iSCSI, and FCoE). It also means NPAR bandwidth allocation can regulate only

transmit traffic (not receive traffic).

After you have configured the NIC partitions as desired on the 8200 and 3200 Series Adapters’ ports, you

must reboot the server for the personality changes to take effect.

You can modify the minimum and maximum bandwidth for each NPAR. The changes take effect

immediately without rebooting the server. The minimum and maximum bandwidths are specified as

percentages of the link bandwidth, where:

• Minimum bandwidth is the minimum bandwidth guaranteed to a partition.

• Maximum bandwidth is the maximum value that a partition is permitted to use.

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Lenovo ThinkServer RD540 User Manual Page 62