z/OS 下什么是共享逻辑分区？
我的理解是 PR/SM 允许多个 LPAR，每个 LPAR 运行自己的 z/OS（或其他操作系统）副本。
然而，IBM 的一个性能报告工具有一份题为“CPU Busy by Shared LPARs”的报告。
现在，我们总是在 z/OS 的单个实例上运行该产品，无论是在其自己的 LPAR 上还是在 z/VM 下，因此我试图弄清楚它报告的内容。 LPAR 究竟如何才能共享？
我问这个问题的主要原因是我想获得有关单个 LPAR 运行情况（CPU 使用率）的准确指示。我想确保它仅适用于该 LPAR，而不是以某种方式从另一个 LPAR 泄漏信息。
My understanding was that PR/SM allowed for a number of LPARs, each running its own copy of z/OS (or other OS).
However, one of IBMs performance reporting tools has a report entitled "CPU Busy by Shared LPARs".
Now we've always run this product on a single instance of z/OS, whether on its own LPAR or under z/VM so I'm trying to figure out what this is reporting. How exactly can LPARs be shared at all?
The main reason I'm asking is because I want to get a decent indication as to how a single LPAR is running (CPU% used). I want to make sure it's for that LPAR only, not somehow leaking information from another LPAR.
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我不是 az/os 专家，所以接下来的内容只是一个疯狂的猜测...
我相信 LPAR 和 CPU 之间存在多对多关系。给定的LPAR可以利用多个CPU和/或单个CPU可以向多个LPAR提供资源。如果您有多个 LPAR 在给定的 CPU 上运行，那么“共享 LPAR 的 CPU 繁忙”是否可能反映了共享该 CPU 的 LPAR 导致该 CPU 的繁忙程度？换句话说，共享的是CPU而不是LPAR。
I'm not a z/os guru so what follows is just a wild guess...
I believe a many-to-many relationship exists between LPAR and CPU. A given LPAR can draw upon multiple CPU's and/or a single CPU can provide resources to multiple LPAR's. If you have multiple LPAR's running off of a given CPU, then is it possible that "CPU Busy by Shared LPARs" reflects how busy that CPU is as result of the LPARs that share it? In other words, the thing being shared is the CPU not the LPAR.