问题

存储QoS的实际限制是什么？

m
UserLevel 2
徽章 +1

你好！

在读的时候存储QoS的文档提到以下是一个限制：

存储QoS不支持Metro可用性，同步复制和AFS虚拟机。

如果我将存储QoS应用于VM，我的实际结果将是什么同步复制的？我什至可以这样做吗？或反之亦然，如果我开始使用存储QoS复制VM，会发生什么？

存储QoS与Metro功能冲突如何？

谢谢。

2个答复

阿罗纳
秩
UserLevel 6
徽章 +5

嗨，马丁，

这是个有趣的问题。
我最初的想法是QoS增加了群集延迟。由于数据写入的提交发生在两个站点上，因此后者对于Metro的可用性至关重要。在这种情况下，延迟增加可能会对MA产生负面影响。

挖掘更深入的挖掘，事实证明，至少是当前功能实现的方式，QoS是由ESXI插入的。

Hi Martin,<\/p>

\u00a0<\/p>

This is an interesting question.
My initial thought was that the QoS adds to the cluster latency. The latter is crucial for Metro Availability as the commit of the data write happens on both sites. Increased latency in this instance could impact MA negatively.<\/p>

Digging a bit deeper, it turns out that storage QoS is ingnored by the ESXi, at least the way the feature is implemented currently.<\/p>

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

m
UserLevel 2
徽章 +1

谢谢回复。

在这种情况下，我们计划使用AHV，但我忘了在我的OP中提到这一点。

尽管如此，存储QoS的使用受到限制，因此不应该是一个问题，我只是想更多地了解限制 - 在这方面，官方文档需要大大扩展。

Thanks for the reply.<\/p>

In this case we\u2019re planning to use AHV, I forgot to mention that in my OP though.<\/p>

None the less, the use of Storage QoS is limited so it shouldn\u2019t be an issue, I just wanted to understand more about the limitations - and the official documentation needs to be vastly expanded upon in this regard.<\/p>","quoteUsername":"Martin Edelius","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

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