A customer must store physical hard copies of transaction data off site to meet regulatory...

NDMP is the correct technology when a customer must create physical hard copies of transaction data for off-site regulatory storage. NDMP enables ONTAP data to be backed up directly to tape through a supported backup application, and tape is the typical medium for physical removable copies. SnapVault is disk-to-disk backup and retention; it is excellent for secondary ONTAP protection but does not inherently create physical hard copies. SVM DR replicates an SVM for disaster recovery and is not a physical-copy mechanism. FlexCache accelerates access to remote data and is not a regulatory backup technology. The phrase 'physical hard copies off site' is the key discriminator. A support engineer should map this to tape backup workflows, NDMP configuration, qualified tape devices, and backup software integration. For regulatory retention that requires removable media, NDMP is the NetApp-supported data transfer framework. References/topics: ONTAP NDMP, tape backup, off-site physical media retention, backup application integration, and regulatory data protection.