Object Storage Service:Storage classes

Standard provides highly reliable, highly available, and high-performance object storage for data that is frequently accessed. Standard is suitable for various business applications, such as social networking applications, image, audio, and video resource sharing applications, large websites, and big data analytics. ZRS (Zone-redundant storage) and LRS (Locally redundant storage) are supported for Standard objects.

Use Standard for frequently accessed data requiring real-time reads, such as websites, apps, and streaming media. Standard is the default storage class for uploaded objects.

• Standard - Zone-redundant storage (Recommended)

  For regions with three or more zones, ZRS uses a multi-zone mechanism to store your data redundantly across at least three zones in the same region. If one zone becomes unavailable, your data remains accessible. For regions with two zones, ZRS uses a dual-zone mechanism to store your data across both zones in the same region. If one zone becomes unavailable, your data also remains accessible. Currently, dual-zone ZRS is supported only for the Standard storage class.

  Note

  The China (Hangzhou), China (Shanghai), China (Beijing), China (Zhangjiakou), China (Ulanqab), China (Shenzhen), China (Hong Kong), Japan (Tokyo), Singapore, Indonesia (Jakarta), Germany (Frankfurt), and Malaysia (Kuala Lumpur) regions use a multi-zone data redundancy mechanism for data in the Standard storage class. The US (Silicon Valley), US (Virginia), Philippines (Manila), Thailand (Bangkok), South Korea (Seoul), UAE (Dubai), and UK (London) regions use a dual-zone data redundancy mechanism for data in the Standard storage class.

• Standard - Locally redundant storage

  LRS stores multiple copies of your data on multiple devices of different facilities in the same zone. LRS provides data durability and availability even if hardware failures occur.

  Important

  LRS stores multiple data copies in a single zone. If the zone becomes unavailable, data in the zone is inaccessible. If your business application requires higher availability, we recommend that you use ZRS.

Infrequent Access (IA)

Archive

Archive provides high-durability storage at lower prices compared with Standard and IA. Archive has a minimum billable size of 64 KB and a minimum billable storage duration of 60 days. You can access an Archive object after it is restored or real-time access of Archive objects is enabled. The amount of time that is required to restore an Archive object is approximately 1 minute. You are charged data retrieval fees if you restore an Archive object. If you access an Archive object after real-time access of Archive objects is enabled, you are charged Archive data retrieval fees based on the size of the Archive object. Archive is suitable for data that needs to be stored for a long period of time and is rarely accessed, such as archival data, medical images, scientific materials, and video footage. ZRS and LRS are supported for Archive objects

Use Archive for data accessed less than once every 90 days, such as media archives, financial records, or compliance logs. Archive costs significantly less than Standard. Data can be restored in about 1 minute or accessed directly without restoration.

• Archive - Zone-redundant storage (Recommended)

  ZRS stores multiple copies of your data across multiple zones in the same region. Your data is still accessible even if a zone becomes unavailable.

  Note

  The China (Hangzhou), China (Shanghai), China (Beijing), China (Zhangjiakou), China (Ulanqab), China (Shenzhen), China (Hong Kong), Japan (Tokyo), Singapore, Indonesia (Jakarta), Germany (Frankfurt), and Malaysia (Kuala Lumpur) regions use a multi-zone data redundancy mechanism for data in the Archive storage class.

• Archive - Locally redundant storage

  LRS stores multiple copies of your data on multiple devices of different facilities in the same zone. LRS provides data durability and availability even if hardware failures occur.

  Important

  LRS stores multiple data copies in a single zone. If the zone becomes unavailable, data in the zone is inaccessible. If your business application requires higher availability, we recommend that you use ZRS.

Cold Archive

Cold Archive provides highly durable storage at lower prices compared with Archive. Cold Archive has a minimum billable size of 64 KB and a minimum billable storage duration of 180 days. You must restore a Cold Archive object before you can access it. The amount of time required to restore a Cold Archive object varies based on the object size and restoration priority. You are charged data retrieval fees and API operation calling fees when you restore Cold Archive objects. Cold Archive is suitable for cold data that needs to be stored for an extended period of time, including data that must be retained for an extended period of time to meet compliance requirements, raw data that is accumulated over an extended period of time in the big data and AI fields, retained media resources in the film and television industries, and archived videos in the online education industry. Only LRS is supported for Cold Archive objects.

Use Cold Archive for data accessed less than once a year that still needs retrieval within hours, such as regulatory archives, audit logs, or long-term retention data. Restoration takes 1 to 12 hours.

Deep Cold Archive

Deep Cold Archive provides highly durable storage at lower prices compared with Cold Archive. Deep Cold Archive has a minimum billable size of 64 KB and a minimum billable storage duration of 180 days. You must restore a Deep Cold Archive object before you can access it. The amount of time that is required to restore a Deep Cold Archive object varies based on the object size and restoration priority. You are charged data retrieval fees and API operation calling fees when you restore Deep Cold Archive objects. Deep Cold Archive is suitable for extremely cold data that needs to be stored for an extremely long period of time, including raw data that is accumulated over an extended period of time in the big data and AI fields, retained media resources, regulatory and compliance documents, and data that is archived by using tapes. Only LRS is supported for Deep Cold Archive objects.

Use Deep Cold Archive for data that is almost never accessed and can tolerate 12- or 48-hour restoration, such as compliance archives, digital preservation, or cold disaster recovery data.