After data has been written to Amazon Glacier it is stored in the S3 cloud for a period of 24 hours before it is moved to Amazon Glacier. The Expedited retrieval method may not be available if the AWS...After data has been written to Amazon Glacier it is stored in the S3 cloud for a period of 24 hours before it is moved to Amazon Glacier. The Expedited retrieval method may not be available if the AWS activity is high and the resources to perform the operation are not available. The local cache of data in the AltaVault datastore can help avoid the retrieval of data from Glacier.