CVM资源分配

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\nBy default, the installer will set the number of vCPU's on a single CVM equal to the number of cores on one single socket, with some top end limitations.

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\nGuessing you've got 10 core processors in those boxes, hence the 10 vCPU setting.

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\nNote that those are not reserved CPUs. In the ESXi world, we reserve 10GhZ of top end CPU, which only comes into account when there is 100% CPU contention on the box. Thats roughly equal to around 4 cores. This is a good thing, as you wouldn't want the CVM's to be starved for CPU when you're really hammering on the box.

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\nSame deal with CVM memory, with the exception that those are hard reservations, so we statically reserve whatever memory is allocated. Same principle, you dont want the CVM's starved if you're really running hard.

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\nAs for configuration setting of memory, minimum used to be 16GB, now the absolute floor is about 24GB as of AOS 5.0.

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\n32GB, at minimum, unlocks capacity tier deduplication if you choose to enable it.

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\nKeep in mind, we dont use that memory for nothing, thats caching, and other fancy stuff designed to make the system run better, or deliver killer features back to you.","quoteUsername":"Jon","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

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\nThere really is no limit to the size of a Nutanix cluster. If you were using the Acropolis hypervisor, you could have 100's or 1000's of nodes in a single cluster. With vSphere being the hypervisor, you're limited to 64 nodes per cluster. In my environment we limit cluster size to 32 nodes just because self-imposed restrictions on rack capacity and how we implement failure domains.","quoteUsername":"mikegelhar","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

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sushilkm<\/a> - thanks for reaching out, hope the holidays treated you well.

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\nThe guidance you're looking for is here:

\nhttps:\/\/portal.nutanix.com\/#\/page\/docs\/details?targetId=Release-Notes-Acr-v55:rel-memory-requirements-r.html<\/a>

\nhttps:\/\/portal.nutanix.com\/#\/page\/docs\/details?targetId=AHV-Admin-Guide-v55:app-cvm-memory-config-u.html<\/a>

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\nSecond link is under the AHV docs, but the guidance is the same for ESXi.

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\nTLDR - 32GB is a pretty solid recommendation. You can trust mikegelhar<\/a> - he runs one of the largest Nutanix deployments in the world and has seen pretty much everything there is to see 🙂","quoteUsername":"Jon","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

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

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