本地存储无法扩容
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我这边有个mysql数据库，在rainbond应用的存储配置中，将数据文件目录设置为本地存储，初始分配了50G大小的空间，后面感觉要不够用了，想扩容，修改的时候不允许修改容量大小，希望可以支持扩容功能，总不能让我们将这种超大文件目录先拷贝出来，然后再新增一个大的存储空间，之后再将文件拷贝回去。这样会导致需要停机处理，且停机时间随着迁移文件的大小而增长，迁移拷贝大文件也可能出问题导致服务异常
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Title: Local storage cannot be expanded
I have a mysql database here. In the storage configuration of the rainbond application, the data file directory is set to local storage. 50G of space is initially allocated. Later, I feel that it is not enough. I want to expand the capacity, but the capacity is not allowed to be modified during modification. Size, I hope it can support the expansion function. We cannot copy such a large file directory first, then add a large storage space, and then copy the files back. This will result in the need for downtime processing, and the downtime will increase with the size of the migration file. Migration copying large files may also cause problems and cause service abnormalities.