Again, at this point, you would reboot the LPAR once you are satisfied that all data migrations have completed successfully.
同样地，此时，如果所有数据迁移均成功完成，就应该重新引导这个LPAR。
Migrations combine power and simplicity to coordinate both schema changes and data changes using a wrapping approach.
迁移用包装的方式组合了协调模式变化和数据变化的威力和简单性。
These migrations are all saved and time-stamped, to make it possible to roll back to previous versions of the data structure.
这些迁移操作都会保存，并加上时间戳，让我们可以回滚到数据库结构的上一个版本。
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