The default storage class for objects in Cloud Storage is STANDARD, which provides a balance of performance, durability, and cost.

The NEARLINE storage class is designed for data that is rarely accessed and can tolerate higher latency. It offers lower storage costs compared to the STANDARD storage class.

The COLDLINE storage class is designed for data that is infrequently accessed and can tolerate long retrieval times. It offers the lowest storage costs among the storage classes.

The ARCHIVE storage class is designed for data that is rarely accessed and can tolerate very long retrieval times. It offers the lowest storage costs and is suitable for long-term archival purposes.

The maximum size of an object that can be stored in Cloud Storage is 5 TB.

The maximum number of objects that can be stored in a single Cloud Storage bucket is 100,000,000.

The maximum size of a Cloud Storage bucket is 100 TB.

The default retention period for objects in Cloud Storage is 30 days.

The maximum retention period for objects in Cloud Storage is 4 years.

The maximum number of versions of an object that can be stored in Cloud Storage is 30.

The maximum size of a Cloud Storage object that can be downloaded in a single request is 1 GB.

The maximum number of concurrent downloads that can be made from a single Cloud Storage bucket is 30.

The maximum number of concurrent uploads that can be made to a single Cloud Storage bucket is 30.

The maximum size of a Cloud Storage object that can be uploaded in a single request is 4 GB.

The maximum number of Cloud Storage buckets that can be created per project is 100.