Re-format filesystem in Storage Directory /var/big_data/dfs/name ?

As an AI language model, I cannot perform actions on your computer's file system. However, if you need to reformat the filesystem in the storage directory /var/big_data/dfs/name, you should first make sure that you have backed up all important data in that directory, as reformatting will erase all the data in that directory. You can then use a tool like mkfs to reformat the filesystem. However, be cautious when performing this action as it can potentially cause data loss.