Storage Classes

OBS supports storage classes at the bucket level and object level.

OBS provides the following storage classes: Standard, Warm, and Cold.

These storage classes can meet different needs for storage performance and costs.

• Standard: The Standard storage class features low latency and high throughput. It is therefore good for storing frequently (multiple times per month) accessed files or small files (less than 1 MB). Its application scenarios include big data analytics, mobile apps, hot videos, and social apps.
• Warm: The Warm storage class is for storing data that is infrequently (less than 12 times per year) accessed, but when needed, the access has to be fast. It can be used for file synchronization, file sharing, enterprise backups, and many other scenarios.
• Cold: The Cold storage class is ideal for storing data that is rarely (once per year) accessed. Its application scenarios include data archiving and long-term backups. The Cold storage class is secure, durable, and inexpensive, so it can be used to replace tape libraries. To keep cost low, it may take hours to restore data from the Cold storage class.