OSS charges storage fees based on the size and duration of objects you store.

OSS provides the following storage classes: Standard, Infrequent Access (IA), Archive, and Cold Archive. For more information, see Overview.

Storage fees are charged based on actual storage usage and duration. The following table describes storage fees incurred for different storage classes.
Billing item Description Billing method
Storage usage of Standard locally redundant storage (LRS) Fees incurred when you store Standard LRS objects.
  • Pay-as-you-go: Storage fees = Storage usage (GB) × Unit price/month/30 (days)/24 (hours).
  • Subscription: Standard LRS plan.
Storage usage of Standard zone-redundant storage (ZRS) Fees incurred when you store Standard ZRS objects.
  • Pay-as-you-go: Storage fees = Storage usage (GB) × Unit price/month/30 (days)/24 (hours).
  • Subscription: none.
Storage usage of IA LRS Fees incurred when you store IA LRS objects.
Note IA and Archive have the minimum billable size of 64 KB for each object. An object smaller than 64 KB is charged as 64 KB. If an object is larger than or equal to 64 KB, the actual object size applies to billing.
  • Pay-as-you-go: Storage fees = Billed storage usage (GB) × Unit price/month/30 (days)/24 (hours).
  • Subscription: IA LRS plan.
Storage usage of IA ZRS Fees incurred when you store IA ZRS objects.
  • Pay-as-you-go: Storage fees = Billed storage usage (GB) × Unit price/month/30 (days)/24 (hours).
  • Subscription: none.
Storage usage of Archive LRS Fees incurred when you store Archive objects.
  • Pay-as-you-go: Storage fees = Billed storage usage (GB) × Unit price/month/30 (days)/24 (hours).
  • Subscription: none.
Storage usage of Cold Archive LRS Fees incurred when you store Cold Archive objects.
  • Pay-as-you-go: Storage fees = Billed storage usage (GB) × Unit price/month/30 (days)/24 (hours).
  • Subscription: none.
Storage usage of IA, Archive, and Cold Archive objects whose actual storage duration is less than the minimum storage duration IA has the minimum storage duration of 30 days (720 hours) for each object. Archive has the minimum storage duration of 60 days (1,440 hours) for each object. Cold Archive has the minimum storage duration of 180 days (4,320 hours) for each object. If the storage duration is less than the minimum storage duration, OSS charges the storage fees for the minimum storage duration, including the remaining duration in the next billing cycle.
Note If an IA, Archive, or Cold Archive object is overwritten, for example, you upload or copy an object with the same name to the same location, the object is also deleted.
  • Pay-as-you-go: Storage fees = Size of deleted objects (GB) × Unit price/month/30 (days)/24 (hours) × (Minimum storage duration - Acutal storage duration).

    Example: An Archive object of 100 GB is deleted after it is stored for 50 days (1,200 hours). The fees are charged based on the formula: Storage fees = 100 (GB) × USD 0.0045/30 (days)/24 (hours) × (1,440 - 1,200) = USD 0.15.

  • Subscription: none.