With security and sustainability in mind, it is recommended to keep your data:
Granting agencies may require you to retain your data for a specified amount of time and to explain this proposed method of storage and retention as a part of your funding requirements.
Whether or not you're creating a data management plan, proper storage of data can preserve data for future use by you and potentially other researchers.
Backup refers to the preservation of additional copies of your resource in a different location from where the resource is currently in storage. This ensures that if something were to go wrong with the file in storage, you could access one of your backups so your file is not permanently lost. Backing up data is also a way to access earlier versions of your data.
Storage and backup strategies may overlap. We recommend keeping multiple copies to keep your data safe.