R或 --restow： 重新装载应用程序（先卸空，然后再装载）。
R or --restow : Restows applications (first unstow, then stow again).
如果希望改变驱动程序，需要先卸载正在使用的驱动程序，然后再装载另一个驱动程序。
If you wish to change the driver, you will need to unload the driver in use before loading another driver.
再举一个例子：IT运营经理接到通知，一个装载事实表的ETL作业在处理准备阶段DB 2 _ Input_Facts中读取输入时失败了。
In another example, the it Operational Manager has been notified that an ETL job for loading the fact table has been aborted when reading its input in the processing stage DB2_Input_Facts.
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