最近在看关于超融合的一些文档，有些疑问，希望社区的小伙伴解下惑，谢谢。
部署超融合时，对于节点的要求有下面一段描述，主要是最后一个不是很理解。
1.这个是说节点服务器只能用单个vic网卡去连接FI嘛？看不懂！！！！！2.通过hx-install创建用于hx-node的 service profile的时候，创建了out-of-band cimc的ip地址范围段，也就是节点带外管理的段。这个是否有必要去创建？因为本身创建带内的管理段。
3.最新版的超融合，增加了对iscci和fc存储的支持。这个功能是用于超融合创建的虚拟机，调用外部的存储嘛？
4.超融合里面，hx-node里面的vsphere uplink是怎么设计的？这个uplink是继承ucsm里面的uplink的配置嘛？如果这样，ucsm里面指定的uplink是否可以有类似trunk的机制。
A Cisco HyperFlex cluster contains a minimum of three converged HyperFlex nodes. There is an option of
adding compute-only nodes to provide additional compute power if there is no need for extra storage. Each
server in a HyperFlex cluster is also referred as a HyperFlex node. Make sure that each node has the following
settings installed and configured before you deploy the storage cluster.
For further information, refer to the
Cisco HX240c/220c HyperFlex Node Installation Guides.
Ensure that the following host requirements are met.
• Use the same VLAN IDs for all the servers (node or hosts) in the cluster.
• Use the same administrator login credentials for all the ESXi servers across the storage cluster.
• Keep SSH enabled on all ESXi hosts.
• Configure DNS and NTP on all servers.
• Install and configure VMware vSphere.
• Use single VIC only for Converged nodes or Compute–only nodes. Additional VICs or PCIe NICs are
not supported.
