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Object Storage Service:0016-00000330

Last Updated:Mar 20, 2026

Problem description

The source object specified in the CopyObject request cannot be read.

Causes

The x-oss-copy-source request header points to a source object that is in an unreadable state. The most common cause is that the source object's storage class is Archive.

Important

Archive objects are offline by default. An Archive object cannot be read or copied until it is restored or until real-time access is enabled for the bucket.

Examples

The following CopyObject request fails because archived-object is an Archive object that has not been restored.

PUT /target-object HTTP/1.1
Host: example-bucket.oss-cn-hangzhou.aliyuncs.com
Date: Tue, 09 Apr 2019 03:45:32 GMT
Authorization: OSS qn6q**************:77Dv****************
x-oss-copy-source: /example-bucket/archived-object

Solutions

Choose one of the following approaches:

ApproachWhen to use
Restore the object, then copyCopying a single Archive object once or infrequently. Restoration takes time before the copy can proceed.
Enable real-time access of Archive objectsAccessing or copying Archive objects frequently, without waiting for restoration each time.

Restore the object, then copy

Restore the Archive object using RestoreObject before calling CopyObject. For details, see Restore objects.

Enable real-time access of Archive objects

Enable real-time access of Archive objects for the bucket that contains the source object. After you enable this feature, all Archive objects in the bucket can be read and copied without being restored first. For details, see Real-time access of Archive objects.

References