I have one disk (A) that used to host docker and i want to store uploaded files in B disk when disk A is full and store in disk C when disk B is full and so on...
I guess you can't do that with Community Edition.
You could do something like that with Enterprise Edition,
https://docs.alfresco.com/6.2/concepts/store-manage-content.html
But I'm not sure what is the purpose of such configuration.
If my disk is full, i can't upload more files. Can you tell me what is better solution for that situation?
You can attach a bigger disk and move the files from Content Store to the new one.