802.1p QoS Tagging
HP Sea of Sensors 3D
IEEE quality of service (QoS) 802.1p tagging allows the adapter to mark or tag frames with a priority
level across a QoS-aware network for improved traffic flow.
IEEE 802.1Q virtual local area network (VLAN) protocol allows each physical port of the HP 650FLB
adapter to be separated into multiple virtual NICs for added network segmentation and enhanced
security and performance. VLANs increase security by isolating traffic between users. Limiting the
broadcast traffic to within the same VLAN domain also improves performance.
For overall improved system response, the HP 650FLB supports standard TCP/IP stateless offloading
TCP/IP checksum offload (TCO) moves the TCP and IP checksum offloading from the CPU to the
Large send offload (LSO), also known as TCP segmentation offload (TSO), allows TCP segmentation to
be handled by the adapter rather than the CPU.
RoCE is an accelerated I/O delivery mechanism that allows data to be transferred directly from the user
memory of the source server to the user memory of the destination server bypassing the operating
system (OS) kernel. Because the RDMA data transfer is performed by the DMA engine on the adapter's
network processor, the CPU is not used for the data movement, freeing it to perform other tasks such
as hosting more virtual workloads (increased VM density). RDMA also bypasses the host's TCP/IP stack,
in favor of upper layer InfiniBand protocols implemented in the adapter's network processor. The
bypass of the TCP/IP stack and the removal of a data copy step reduce overall latency to deliver
accelerated performance for applications such as Microsoft Hyper-V Live Migration, Microsoft SQL and
Microsoft SharePoint with SMB Direct.
Minimize the impact of overlay networking on host performance with tunnel offload support for VXLAN
and NVGRE. By offloading packet processing to adapters, customers can use overlay networking to
increase VM migration flexibility and network scale with minimal impact to performance. HP Tunnel
Offloading increases I/O throughput, reduces CPU utilization, and lowers power consumption. Tunnel
Offload supports VMware's VXLAN and Microsoft's NVGRE solutions.
Single-Root I/O Virtualization (SR-IOV) provides a mechanism to bypass the host system hypervisor in
virtual environments providing near metal performance and increasing server efficiency. SR-IOV
provides a mechanism to create multiple Virtual Functions (VFs) to share single PCIe resources. The
device is capable of SR-IOV, and requires Server BIOS support, controller firmware, and OS support.
Support for HP's Sea of Sensors which is a collection of 32 sensors that automatically track thermal
activity - heat - across the server. When temperatures get too high, sensors can kick on fans and make
other adjustments to reduce energy usage. What makes it better is the upgrade from all six fans
kicking on at one time to a new system where only one kicks on - the one in proximity of the area that
started heating up - thus reducing the amount of energy used for cooling.
I/O Virtualization support for VMware NetQueue and Microsoft VMQ help meet the performance
demands of consolidated virtual workloads.
The HP FlexFabric 650FLB supports iSCSI INT 13 Boot and FCoE Boot from SAN.
c04347341 — DA- 15049 Worldwide — Version 3 — September 30, 2014
HP FlexFabric 20Gb 2-port 650FLB Adapter