在发生“过量使用”时，Hypervisor使用VIOS上的分页设备存储过剩的逻辑内存。

In the case of "over-commitment," the Hypervisor backs the excess logical memory using the paging devices on the VIOS.

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当在多个LPAR之间动态地管理内存时，Hypervisor必须使用分页设备存储共享内存池的物理内存不能储存的过剩内存。

As memory is dynamically managed among multiple LPARs, the Hypervisor has to use a paging device to back up the excess memory that it cannot back up using physical memory from the Shared memory pool.

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这些设备有一个相关联的作用，水库满溢外超载液体，这些监管机构将转移过剩电压地面流动。

These devices have a role associated with an overflow reservoir outside carrying excess liquid; these regulators will divert the excess voltage flows to ground.

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