Multipart upload

Object Storage lets you store objects that are up to several terabytes in size (see Quotas and limits). The larger the object, the more likely the upload will fail with a network error. For this reason, it is more efficient to upload larger objects in smaller parts. Sending objects to Object Storage like this is called a multipart upload. For more information about multipart upload support, see General procedure for multipart upload.

Many of the tools listed in Supported tools support multipart uploads.

You might see the following messages in a bucket overview in the Cloud management console:

• "N incomplete uploads."
• "Wait for uploading to finish, or use the tool of your choice to end or delete the upload processes."
• "Some multipart uploads are incomplete."

All of these messages indicate that there are incomplete multipart uploads in your bucket. Pay attention to these messages, since space for storing an object that is not fully uploaded costs the same as usual. See Pricing policy for Object Storage.