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Nutanix CVM -DISKSPD

j

我是Nutanix的新手，我们在网上拥有Nutanix群集。为了测试目的，我在VM中运行DISKSPD测试。
我正在运行一些带有相同VM配置的DisksPD测试，其中几个Enviroments 3层Hyper-V/ VMware和HCI Nutanix AHV。

与其他平台相比，使用-sh标志（无软件/硬件缓存）进行测试的结果几乎低10倍？与我的其他测试平台相比，没有-SH Flag Nutanix正在运行更高的结果。是因为CVM的设计如何工作吗？我只是想了解。

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最好的答案阿罗纳2021年2月4日，05：31

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I\u2019m new to Nutanix and we have a Nutanix cluster online. For testing purposes I\u2019m running diskspd test in a VM.
I\u2019m running some diskspd test with identical VM configs in several enviroments 3-tier Hyper-V\/ VMware and HCI Nutanix AHV.<\/p>

Why is it that running a test with -Sh flag (no software\/hardware cache) gives almost 10 times lower results in Nutanix compared to other platforms? Without -Sh flag Nutanix is running test with higher results compared to my other testing platforms. Is it because of how CVM is designed to work? I\u2019m just trying to understand.<\/p>","quoteUsername":"JukkaFIN","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

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3个答复

阿罗纳
秩
UserLevel 6
徽章 +5

嗨，jukkafin，

DiskPD的开发是为了测试物理存储，这是要牢记的。经过KB-9653 [性能]用Microsoft Diskspd进行基准测量存储。看看这是否使事情变得更加清晰。让我知道您是否还有疑问。

j

谢谢，

当使用Nutanix AHV和Legacy 3 TIER HYPER-V虚拟机上使用测试扩散到几个虚拟磁盘上的Leganix AHV和Legacy 3层虚拟机上，我能够获得类似的磁盘PD结果。Altough使用几个SAN存储LUN并将虚拟磁盘散布在这些磁盘上时，我能够通过SAN存储取得更好的效果。

问题：
当使用Nutanix AHV时，一个虚拟磁盘仅限于一个物理磁盘的性能，而使用数量组的vDisks载荷则与几个恒星和物理磁盘保持平衡吗？

Thank you,<\/p>

I was able to get similar diskspd results when using volume group on Nutanix AHV and legacy 3-tier Hyper-V virtual machine with test spread to several virtual disks. Altough when using several SAN storage luns and spreading virtual disks on those, I was able to achieve better results with SAN storage.\u00a0<\/p>

Question:
When using Nutanix AHV one virtual disk is limited to performance of one physical disk and when using volume group withs several vdisks load is balanced to several stargates and physical disks?<\/p>","quoteUsername":"JukkaFIN","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

阿罗纳
秩
UserLevel 6
徽章 +5

嗨，jukkafin，

您问题的答案不是真的。虚拟和物理层没有直接（或易于映射）在一起。根据几个星际之门过程之间的平衡，数据局部性原理可确保从本地节点提供数据，这也将通过同一星际之门过程表示。

Hi JukkaFIN,<\/p>

The answer to your question is not really. Virtual and physical layers are not directly (or easily mapped) together. As per balancing between several stargate processes, data locality principles ensures that the data is served from the local node and that would also mean by the same stargate process.<\/p>

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

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