Hi @Chinchilla ,

ensure that you have met the following requirements:

• Windows File System Agent is installed on the CommServe system.

• For the global deduplication policy:

  • The silo storage operations are performed from the global deduplication policy.

  • Do not create a silo copy on the deduplication-enabled storage policy copy that is associated with the global deduplication policy.

• No backup jobs are run to the deduplicated storage policy or global deduplication policy.

  For existing deduplicated storage policy or global deduplication policy with backup data, seal the deduplication database (DDB) and then create a silo copy. See Sealing the Deduplication Database for instructions.

Regards,

Suleman

Also, You can create a silo copy by using the sp_copycreation.xml configuration file. For more information, see Creating a Silo Copy using XML

regards,

Suleman

I found the answer, check with https://documentation.commvault.com/2023e/expert/deprecation_notice_for_archive_data_for_cold_storage_on_tape_using_deduplication_feature.html Backing up Deduplicated Data to Tape Deprecated