问题

棱镜中的实际存储摘要与尺寸/存储容量计算器不匹配

  • 2020年6月25日
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  • aleorl
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嗨forumpeople,

由于某些原因，我们在Prism和尺寸/存储容量计算器的存储摘要中看到不同的值。我们处理的是一个RF2集群。

存储汇总显示47.9 TiB

而Sizer显示了35,53 TiB

和存储容量计算器显示36,05 TiB

一个小的差异可能是由于实际集群的5个节点中每个节点都有4x2TB nvme，而sizeer /Capacity计算器中只有1.92可用，但它不应该在Prism和sizeer /Capacity计算器之间造成如此严重的不一致。

集群的实际可用容量(RF2, N+1)是多少?此外，“CVM开销”值是如何在Prism的存储摘要中考虑的，它是实际可用容量的一部分吗?

Hi forumpeople,<\/p>

For some reason\u00a0we see different values in Storage Summary in Prism and Sizer\/Storage Capacity calculator. We are dealing with an RF2 cluster here.<\/p>

Storage Summary shows 47.9 TiB\u00a0<\/p>

\"//www.jhbzcj.com/next/prism-for-infra-and-it-ops-26/\"<\/figure>

Yet Sizer shows\u00a035,53\u00a0TiB<\/p>

\"//www.jhbzcj.com/next/prism-for-infra-and-it-ops-26/\"<\/figure>

and Storage Capacity calculator shows 36,05 TiB<\/p>

\"//www.jhbzcj.com/next/prism-for-infra-and-it-ops-26/\"<\/figure>

\u00a0<\/p>

A small difference may be due to the actual cluster having 4x2TB NVMes per each of the 5 nodes, and only 1.92 being available in Sizer\/Capacity calculator, but it should not make such a critical misalignment between Prism and Sizer\/Capacity calculator.<\/p>

What is the actual usable capacity of the cluster (with RF2, N+1)? Also, how are \u201cCVM Overhead\u201d values taken into account in Prism\u2019s Storage Summary and is it part of the actual usable capacity?<\/p>","quoteUsername":"aleorl","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

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R
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徽章

不同之处在于Prism在没有考虑故障转移的情况下显示了总存储容量，但使用中包含了CVM开销。

您可以查看以下KB来计算集群的实际可用容量——RF2, N+1:

https://portal.nutanix.com/page/documents/kbs/details/?targetId=kA0600000008ducCAA

The difference is that Prism displays the total storage capacity without taking failover into account but CVM overhead is included in the usage.<\/p>

You can check the below KB for the calculation for the actual usable capacity of the cluster - with RF2, N+1:<\/p>

https:\/\/portal.nutanix.com\/page\/documents\/kbs\/details\/?targetId=kA0600000008ducCAA<\/a><\/p>","quoteUsername":"RAMESH BABU","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

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