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解决了

带有3个节点群集和3个磁盘故障的RF2情况在同一节点

k
徽章
  • KC93
  • 冒险家
  • 5个答复

各位，

我可以对以下情况有疑问吗？

RF = 2

3个节点群集

同一节点中的2个磁盘故障

我可以知道集群是否会破坏吗？从我的理解来看，它不应损坏，因为在同一节点中的2个磁盘故障（不是不同的节点）。

图标

最好的答案Anishwalia202021年1月29日，09：36

Hey,\u00a0@KC93<\/user-mention>\u00a0that is absolutely correct.\u00a0<\/p>

The reason is that\u00a0the data from those 2 failed disks will also be present on other nodes in the cluster.<\/p>

So\u00a0say fs a node goes down and all its\u00a0disk fails too, you won\u2019t be having data loss in that scenario on an RF2 cluster too because random other nodes will have the data copied.<\/p>

I hope I cleared your doubts. Let me know If I can help you with anything else.\u00a0\":smile:\"<\/p>

\u00a0<\/p>","className":"post__content__best_answer"}">

查看原件
Dear All,<\/p>

May I have a question about the below situation?<\/p>

RF=2<\/p>

3 node cluster<\/p>

2 x disks failure in same node<\/p>

May i know whether the cluster will be corrupted or not? From my understanding, it should not be corrupted as 2 x disks failure in same node (NOT different node).<\/p>","quoteUsername":"KC93","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

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7个答复

Anishwalia20
秩
UserLevel 6
徽章 +5

嘿， @kc93那是绝对正确的。

原因是从群集中的其他节点上也存在来自这两个失败磁盘的数据。

因此，说fs节点逐渐下降，其所有磁盘也会失败，在RF2群集上，您也不会在这种情况下丢失数据丢失，因为随机其他节点会复制数据。

我希望我能解决您的疑问。让我知道我是否可以帮助您。：微笑：

阿尼什·辛格·瓦利亚（Anish Singh Walia）
Hey,\u00a0@KC93<\/user-mention>\u00a0that is absolutely correct.\u00a0<\/p>

The reason is that\u00a0the data from those 2 failed disks will also be present on other nodes in the cluster.<\/p>

So\u00a0say fs a node goes down and all its\u00a0disk fails too, you won\u2019t be having data loss in that scenario on an RF2 cluster too because random other nodes will have the data copied.<\/p>

I hope I cleared your doubts. Let me know If I can help you with anything else.\u00a0\":smile:\"<\/p>

\u00a0<\/p>","quoteUsername":"AnishWalia20","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

k
徽章

嗨，Anishwalia，

感谢您的信息和帮助。

因此，如果在同一节点中（在RF2情况下）中的2个失败的磁盘，我可以知道节点是否会下降？还是仍然操作？谢谢

Hi AnishWalia,<\/p>

\u00a0<\/p>

Thanks for your information and help.<\/p>

\u00a0<\/p>

So, if 2 x failed disks in same node (Under RF2 situation), may i know whether the node will be down or not? or still operate? Thanks<\/p>

\u00a0<\/p>","quoteUsername":"KC93","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

Anishwalia20
秩
UserLevel 6
徽章 +5

嘿 @kc93很高兴提供帮助。

因此，这取决于SSD是失败还是HDD失败。

说节点上的2个SSD同时变坏，那么肯定的节点会关闭，但不是在HDD的情况下，例如，2个HDD在节点上失败，它仍然可以运行，但空间更少节点失败的机会更少。

阿尼什·辛格·瓦利亚（Anish Singh Walia）
hey @KC93<\/user-mention>\u00a0it\u2019s a pleasure to help.<\/p>

\u00a0<\/p>

So it depends on whether SSDs are failing or HDDs are failing.<\/p>

Say 2\u00a0SSDs on the Node go bad at the same time, then definitely the node will be down<\/strong>, but not in case of HDD, say 2 HDDs fail on a Node, it can still function but with less space<\/strong> and less chance of Node failure.<\/p>

\u00a0<\/p>","quoteUsername":"AnishWalia20","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

k
徽章

嗨，Anishwalia，

感谢你的信息。非常清楚…。

这意味着如果2 x SSD降低，CVM将会下降。我可以知道默认的CVM位置应该在SSD插槽0下吗？如果插槽0失败中的SSD驱动器，则将CVM重新启动到SSD插槽1中，对吗？

而且，如果另一种情况是仅CVM下降，那么基础存储将变得无法访问，因此这些VM需要转到另一个节点以通过10GE网络获取数据，对吗？

再次感谢

Hi AnishWalia,<\/p>

\u00a0<\/p>

Thanks for your information. Very Clear\u2026.<\/p>

That\u2019s mean if 2 x SSD down, CVM will down. May i know the default CVM location should be under SSD slot 0 right? If SSD drive in slot 0 failure, CVM will be rebooted into SSD slot 1 right?<\/p>

\u00a0<\/p>

And if another situation is if only CVM down, the underlying storage will become inaccessible and thus those VMs need to go to another node to get data via 10GE network, right?<\/p>

\u00a0<\/p>

Thanks again<\/p>","quoteUsername":"KC93","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

Anishwalia20
秩
UserLevel 6
徽章 +5

是的 @kc93， 那是对的。：smiley：

假设如果出于某种原因，CVM降低并且其存储是无法访问的，那么在这种情况下，VM的存储/数据iOS将由群集中的其他CVM或其他节点照顾。

您可以在这里获得有关此信息的更多信息https://nutanixbible.com/。只需搜索节点故障即可。

您还可以在Nutanix的You Tube频道上找到一些惊人的视频https://www.youtube.com/c/nutanixuniversity

我希望这些帮助。

阿尼什·辛格·瓦利亚（Anish Singh Walia）
Yes @KC93<\/user-mention>\u00a0, that is correct.\u00a0\":smiley:\"<\/p>

\u00a0<\/p>

Say if for some reason a CVM is down and its\u00a0storage is inaccessible, in that scenario the VM\u2019s storage\/data IOs will be taken care of by other CVMs or other nodes in the cluster.<\/p>

\u00a0<\/p>

You can get more information about this here\u00a0https:\/\/nutanixbible.com\/<\/a>\u00a0. Just search for Node failure.<\/p>

\u00a0<\/p><\/oembed>

\u00a0<\/p>

\u00a0<\/p>

\u00a0<\/p><\/oembed>

\u00a0<\/p>

\u00a0<\/p>

You can also find some amazing videos on Nutanix\u2019s You tube channel\u00a0https:\/\/www.youtube.com\/c\/NutanixUniversity<\/a><\/p>

I hope these help.\u00a0<\/p>

\u00a0<\/p>","quoteUsername":"AnishWalia20","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

k
徽章

你好Anishwalia20，，，，

感谢你的信息。

Anishwalia20
秩
UserLevel 6
徽章 +5

嘿 @kc93，总是很高兴提供帮助。很高兴您发现它有用

让我知道我是否可以以其他方式帮助您或回答您的任何问题：微笑：。

阿尼什·辛格·瓦利亚（Anish Singh Walia）
Hey @KC93<\/user-mention>\u00a0, it is always a pleasure to help. Glad you found it useful<\/p>

\u00a0<\/p>

Let me know if I can help you in any other way or answer any of your questions\":smile:\" .\u00a0<\/p>","quoteUsername":"AnishWalia20","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

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