If the LPAR requires a page that has not yet been migrated, then it will be "demand-paged" from the source system.
如果 LPAR 需要还没有转移的页面，那么它会根据需要从源 系统获取页面。
2
The page section in the output indicates current paging status of your system; pi column indicates number of pages read into the memory and po column indicates number of pages paged out of the memory.
输出的 page 部分指示系统的当前分页状态；pi 列指示读入内存的页数目，而 po 列则指示移出内存的页数目。
3
When a modified permanent storage page needs to be paged out (moved from memory to disk), it is written to a file system.