Describe a storage class in AWS S3 which is used for cold data.

Cold data is a type of data which is infrequently accessed, but still, it needs to be saved. Amazon S3 offers storage classes cold data. We have three main types of storage classes for infrequently accessed objects. This class is designed for long-lived and infrequently accessed data. The first type of storage in this class is called Standard_IA. IA stands for infrequently accessed. The data in this tier are stored redundantly across multiple geographically separate availability zones. The other storage type is called ONEZONE_IA, or One Zone Infrequently Accessed. The data is stored in this type of storage are only stored in one availability zone, which makes it less expensive than Standard_IA; but there is no redundancy for the data. So, if something happens to the availability zone, data will be lost. This type of storage is best for infrequently accessed data which are not critical and can be produced again. And finally, third is Glacier, which is a type of storage in the Infrequently Accessed class. The glacier is suitable for archiving data where data access is infrequent.