Huawei RH8100 V3 - Page 75

– E7-8800 v3: The maximum QPI transmission rate is 9.6 GT/s, and the
two-way transmission bandwidth of a single QPI port is 24 GB/s.
– E7-8800 v4: The maximum QPI transmission rate is 9.6 GT/s, and the
two-way transmission bandwidth of a single QPI port is 24 GB/s.
● DMI2: Direct Media Interface generation 2, used to interconnect CPUs and
platform controllers.
● SMI2: Scalable Memory Interface generation 2, used as the interface between
a CPU and a memory
buer.
– E7-8800 v2: The maximum transmission rate of SMI2 is 2666 MT/s.
– E7-8800 v3: The maximum transmission rate of SMI2 is 3200 MT/s.
– E7-8800 v4: The maximum transmission rate of SMI2 is 3200 MT/s.
● JC-0, JC-1, JC-2, and JC-3: JC stands for Jordan Creek, which refers to the
scalable memory
buer on an Intel E7 v2 CPU platform
– E7-8800 v2 supports Intel
®
C102/C104 scalable memory buer.
– E7-8800 v3 supports Intel
®
C112/C114 scalable memory buer.
– E7-8800 v4 supports Intel
®
C112/C114 scalable memory buer.
Figure 2-29 QPI topology
RH8100 V3 Server
User Guide 2 About the RH8100 V3
Issue 30 (2019-12-19) Copyright © Huawei Technologies Co., Ltd. 65