Last updated：2020-08-21 18:14:27
KS3 provides the following storage classes: Standard, Infrequent Access (IA) and Archive. You can convert the storage class of an object.
You can use one of the following methods to convert the storage class of a KS3 object:
The lifecycle management supports the Automatic conversion between the following storage classes:
For more information about specific operation of the lifecycle management function, see Lifecycle Management.
You can configure the preceding lifecycle policies from the console. For more information, see Configure lifecycle rules.
To manually convert the storage class of an object, you can perform an overwrite operation. If an object of the IA or Archive storage class has been stored for less than a specified number of days, modifying the storage class of the object will incur early deletion fees. For more information, see. Billing - Billing items and methods.
Before you modify the storage class of an archive, restore the object and wait until the object is readable. For more information, see Archive storage class.
The following table describes different methods that can be used to manually convert the storage class of an object:
More SDK options will be supported.
After the storage class of an object has been converted, the storage fees are calculated based on the unit price of the updated storage class. Before you convert the storage class of IA objects and archives, note that:
Minimum storage period
The minimum storage period that you can set for an IA Object is 30 days; the minimum storage period that you can set for an archive is 90 days. If an object of these storage classes has been stored for less than the specified number of days, deleting the object will incur early deletion fees. If you delete these objects in advance, you need to make up for the storage cost in the remaining days of the shortest storage period.
Restore time of archives
It takes 1-10 minutes to restore archives from the frozen state to the readable state. To read data in real time, we recommend that you only convert the storage class to IA and do not use the Archive storage class, otherwise, you may be unable to read the data in real time.
Data retrieval fees
Data retrieval fees are incurred when you access IA objects and Archive objects. These fees are calculated independently of the outbound traffic. For objects that need to be accessed more frequently than once a month, we recommend that you do not set the storage class to IA or Archive.
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