默认情况下，所有Nutanix容器均为薄的配置；这是NDFS的功能。Thin Presisioning是一项广泛接受的技术，随着时间的推移，包括VMware在内的多个存储供应商都证明了这一点。由于默认情况下，容器是NFS数据存储到VMware vSphere主机的，因此默认情况下所有VMS也将稀少。这导致了大大改善的存储容量利用率，而没有传统的性能影响。如果需要有限的用例，例如容错（FT）或高度要求的数据库和I/O工作负载，则可以在VMDK级别上进行厚实的配置。可以通过创建急切的零厚的VMDK来完成厚厚的配置。急切的零厚VMDK将自动保证NDF中的空间预留。
这是断开连接。当我提供懒惰或急切的零1TB VM时，两者都会导致容器存储利用率跳下2TB（使用2的复制系数）。我希望只看到急切的零VM会引起跳跃，因为懒惰应该是稀薄的。另外，当我创建一个懒惰的零VM时，在VM创建完成后，磁盘被列为急切？
最好的答案乔恩
\n\nThick ANY causes NOS to reserve the space on the backend. The only difference is whether it zeros it out up front or not, as you know lazy vs eagar.
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\nThis is because if you are telling Nutanix you want thick, we dont want to accidently have the system run out of space, like some other storage systems do, so we'll respect that lazy reservation for you automagically.
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\nSummary - the jump you are seeing is because we automatically reserve the space. This doesnt mean we zero it out for you, just make a reservation.
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\nAnyhow, fun fact, win NOS 4.6, we added Zero avoidance to the write cache layer (aka oplog), so zero operations should be much faster now, because we just see the zero and update metadata, instead of writing the zero to cache. very slick and cool stuff.","className":"post__content__best_answer"}">
