Restoring Amazon S3 Glacier Data
If your storage provider is Amazon, you are enabled to restore any files stored in Amazon S3 Glacier by selecting the corresponding option on this wizard page.
In most cases, these files do not need to be restored and we recommend that you leave this option disabled. Otherwise, please be informed that restoring these files can be either too slow (up to several hours), or too expensive.
However, if you need to restore Amazon Glacier data, you can select the preferred data retrieval type on the next wizard page by choosing the corresponding option.
To learn more about AWS retrieval types and rates, refer to the Amazon S3 Glacier and Glacier Deep Archive Retrieval Rates article.