About verification of the images stored in the archive tier

You can verify the backup images that are stored in archive tiers, including Amazon Glacier, Amazon Glacier Deep Archive, and Azure Archive.

Image verification reads archived fragments and therefore requires warming the data, similar to a restore operation. The same retrieval methods that are used for restore are supported during the verification. For information about restore, see About restoring data from Amazon Glacier and Considerations with Restore of Image Fragments topics in NetBackup Cloud Administrator's Guide.

NetBackup uses the bulk retrieval method by default. To use a different retrieval method, you can create a GLACIER_RETRIEVAL touch file on the storage server or media server in the /usr/openv/netbackup/bin directory and specify one of the supported values: bulk, standard, or expedited.

For Amazon Glacier, all three retrieval methods are supported, while Amazon Glacier Deep Archive supports only bulk and standard. If the touch file is not present or no value is specified, NetBackup uses the default bulk retrieval method.