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CVM群集和ESXI MGMT和生产网络考虑

  • 2016年7月22日
  • 1回复
  • 873意见
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徽章 +14
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  • 23个答复
嗨，大家好，

两个基本问题：

1）CVM群集和ESXI数据可以使用没有性能的同一10G开关吗？

（我只有一对10G开关，NX1065一张双端口卡。众所周知，CVM群集必须使用10G网络，但我也希望将10G用于ESXI数据网络。）



2）通常ESXI MGMT（通常，NFS访问的VMKERNEL端口）与CVM群集（也是CVM Prism MGMT）在同一10G链接上，如果用户想拥有单独的uplink或subnet for Esxi mgmt，是否可以？我担心性能问题。



提前致谢 ！
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最好的答案乔恩2016年7月22日，18:17

\n
\nThe only time, that I know, of that we have ran into any sort of network performance problem was when those ports were connected to really low end, terrible switches, like Cisco's FEX's (which are NOT a switch, just a density increasing line card).
\n
\n
\nThink about it, even in a three node cluster, you have 2x10x3 gbps of bandwidth, so 60gbps of bandwidth. Thats a TON, and you'd likely be limited by the uplinks FROM the 10G switch to the rest of the world (router, firewall, load balancer, all probably less than 60gbps of bandwidth)
\n
\nNow, expand that example out. In a 20 node cluster, thats 2x10x20 gbps of bandwidth, 400 gbps of bandwidth in total.
\n
\nCombined with the practice of data locality, where we are keeping almost all reads, and half of the writes OFF the network, that turns into us being VERY efficient on the bandwidth that is available.
\n
\nBandwidth is rarely, if ever, a problem in our architecture.","className":"post__content__best_answer"}">
查看原件
xiaowei |nutanix-npp |netapp-ncda ncie |@jolinvsshane

    \ntwo basic questions:

    \n 1)can cvm cluster and ESXI data use the same 10g switch with no performance penelty ?

    \n(I have only one pair of 10g switch, and NX1065 one dual port card. As we know, cvm cluster must use 10g network, but I`d like also to use 10g for ESXI data network. )

    \n

    \n2) generally ESXI mgmt(usually,vmkernel port for NFS access) is on the same 10g link with cvm cluster(also CVM prism mgmt), If the user`d like to have a separate uplink or subnet for ESXI MGMT, is it ok ? I`m worried about the performance problem.

    \n

    \nthanks in advance !","quoteUsername":"xiaowei","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">
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    1回复

    乔恩
    秩
    UserLevel 6
    徽章 +29
    几乎所有客户（我们拥有数千人）使用2x 10克端口，并在它们上运行所有流量。



    我知道的唯一一次，我们遇到了任何类型的网络性能问题，就是当这些端口连接到真正的低端，可怕的开关，例如Cisco的FEX（这不是开关，只是密度增加的线路卡）。





    考虑一下，即使在三个节点群集中，您也有2x10x3 Gbps的带宽，因此带宽为60gbps。多数民众赞成，您可能会受到从10G开关到世界其他地区的上行链路的限制（路由器，防火墙，负载均衡器，所有的带宽可能都小于60gbps）



    现在，扩展该示例。在20个节点群集中，这是2x10x20带宽的Gbps，总共400 Gbps的带宽。



    结合数据局部性的实践，我们几乎保留了所有读取，而将一半的网络写入网络，这变成了我们在可用的带宽上非常有效。



    带宽很少（如果有的话）在我们的架构中是一个问题。
    乔恩·科勒|Nutanix工程技术总监|Nutanix NPX＃003，VCDX＃116 |@jonkohler |如果有用的话，请荣誉！

    \n

    \nThe only time, that I know, of that we have ran into any sort of network performance problem was when those ports were connected to really low end, terrible switches, like Cisco's FEX's (which are NOT a switch, just a density increasing line card).

    \n

    \n

    \nThink about it, even in a three node cluster, you have 2x10x3 gbps of bandwidth, so 60gbps of bandwidth. Thats a TON, and you'd likely be limited by the uplinks FROM the 10G switch to the rest of the world (router, firewall, load balancer, all probably less than 60gbps of bandwidth)

    \n

    \nNow, expand that example out. In a 20 node cluster, thats 2x10x20 gbps of bandwidth, 400 gbps of bandwidth in total.

    \n

    \nCombined with the practice of data locality, where we are keeping almost all reads, and half of the writes OFF the network, that turns into us being VERY efficient on the bandwidth that is available.

    \n

    \nBandwidth is rarely, if ever, a problem in our architecture.","quoteUsername":"Jon","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">
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