问题

AHV如何将内存分配给VM

w
Userlevel 1
徽章 +2

大家好

我只想知道Nutanix AHV如何分配资源（CPU或内存）为VM？

像VMware Resource共享或限制，以及内存过多吗？

Hi all<\/p>

I just want to know how nutanix AHV allocate resource(cpu or memory) to VMs?<\/p>

Like VMware resource share or limit, and memory overcommit?<\/p>","quoteUsername":"Wei Cheng","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

8个答复

p
UserLevel 6
徽章 +16

您需要将CPU和内存设置为VM。如果您分配了（更多），则您的群集可以处理。错误将被丢弃。

You need to set CPU and memory to VM idividually. If you over assign(more then) your cluster can handle. Error will be thrown.<\/p>","quoteUsername":"Primzy","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">
谢尔盖·伊万诺夫（Sergei Ivanov）
秩
UserLevel 4
徽章 +5

当前版本中的AHV中没有内存过多的记忆。

高级SRE |Nutanix全球支持|NSS＃464，NCAP，VCP6.5-DCV，RHCSA，CCNA，EMCSA，AWS和Google Cloud认证
There is no memory oversubscription\u00a0in AHV in the current versions.<\/p>","quoteUsername":"Sergei Ivanov","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">
w
Userlevel 1
徽章 +2

当前版本中的AHV中没有内存过多的记忆。

那么设置了多少CPU和内存，主机将消耗多少？不是VM的实际用法吗？

\t

There is no memory oversubscription\u00a0in AHV in the current versions.<\/p> \t <\/content-quote>

So how much CPU and memory are set, how much will the host consume? Not the actual usage of VM?<\/p>","quoteUsername":"Wei Cheng","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

谢尔盖·伊万诺夫（Sergei Ivanov）
秩
UserLevel 4
徽章 +5

VM将消耗CPU和内存的当前使用情况。

例如，如果您创建具有16GB内存的VM，并且在此时间点，则使用率为4GB，则它将从主机中消耗4GB。但是，您将无法提供超过主机的最大内存。

高级SRE |Nutanix全球支持|NSS＃464，NCAP，VCP6.5-DCV，RHCSA，CCNA，EMCSA，AWS和Google Cloud认证
The VM will be consuming\u00a0the actual current usage of CPU and memory.\u00a0<\/p>

For example, if you create a VM with 16Gb of memory and at this point of time, the usage is 4Gb, it is consuming 4Gb from the host. But you will not be able to provision more than the host\u2019s maximum of memory.<\/p>","quoteUsername":"Sergei Ivanov","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

w
Userlevel 1
徽章 +2

@Sergei Ivanov

感谢你的回复

我有一个带有187.49GB内存的节点，有三个VM，可以单独使用内存资源：

VM_A：分配16GB，使用17％，

VM_B：分配96GB，使用42.64％

CVM：分配32GB，使用79.83％

该节点表明，根据上述用法，该节点消耗了78.08％虚拟机？

@Sergei Ivanov<\/user-mention><\/p>

Thank you for your reply<\/p>

I have a node with 187.49GB\u00a0of memory on it, there are three VMs , which use memory resources individually:<\/p>

VM_A: assign 16GB, use 17%,<\/p>

VM_B: assign\u00a0 96GB, use 42.64%<\/p>

CVM:\u00a0 assign 32GB , use 79.83%<\/p>

That node show it consumed 78.08% of memory, according to the above usage, if you look at the actual usage, it would\u00a0not consume more than half of the node, the consumption data displayed by this node is similar to the memory setting value of the virtual machine?<\/p>","quoteUsername":"Wei Cheng","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

谢尔盖·伊万诺夫（Sergei Ivanov）
秩
UserLevel 4
徽章 +5

你好 @Wei Cheng

主机显示的值类似于该主机上运行的VM的内存设置值的总和。这是因为内存过度配置在AHV上不起作用，并且您不能将内存分配到VM的更多，而不是主机。

高级SRE |Nutanix全球支持|NSS＃464，NCAP，VCP6.5-DCV，RHCSA，CCNA，EMCSA，AWS和Google Cloud认证
Hi\u00a0@Wei Cheng<\/user-mention>\u00a0<\/p>

The value displayed for the host is similar to the sum of values of memory settings of the VMs that are running on that host. It is because memory overprovisioning doesn\u2019t work on AHV and you can\u2019t allocate more memory to your VMs than the host has.<\/p>","quoteUsername":"Sergei Ivanov","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

DKIM

当前版本中的AHV中没有内存过多的记忆。

是否有计划在不久的将来支持记忆过度检查？

这是唯一使我们从vSphere转换为AHV的唯一一件事。不幸的是，我们负担不起在所有盒子上添加内存。

DKIM
\t

There is no memory oversubscription\u00a0in AHV in the current versions.<\/p>\t<\/div><\/content-quote>

Is there a plan to support Memory oversubscription in the near future?\u00a0<\/p>

This is the only thing holding us from switching from vSphere to AHV. Unfortunately, we can\u2019t afford to add memory on all the boxes.\u00a0<\/p>","quoteUsername":"DKim","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

谢尔盖·伊万诺夫（Sergei Ivanov）
秩
UserLevel 4
徽章 +5

嗨，dkim，

它在路线图上，但不在不久的将来。目前没有具体的ETA。目前，计划在2021年的第二半部分。

高级SRE |Nutanix全球支持|NSS＃464，NCAP，VCP6.5-DCV，RHCSA，CCNA，EMCSA，AWS和Google Cloud认证
Hi DKim,<\/p>

it\u2019s on the roadmap, but not for the near future. There is no concrete ETA at this time. Currently, planned for the 2nd half of 2021.<\/p>","quoteUsername":"Sergei Ivanov","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

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