Archived data may in turn be migrated to secondary and tertiary storage systems that are managed by hierarchical storage management (HSM) software, such as Veritas NetBackup. Several storage solutions interoperate with Enterprise Vault to provide integrated data migration.
See Migrating Enterprise Vault data files at http://entsupport.symantec.com/docs/286013.
See the Enterprise Vault Compatibility Charts at http://entsupport.symantec.com/docs/276547.
If you plan to migrate archived data, you need additional storage for the migrated data.