The traditional storage node and VPN setups are still viable options, but DD Boost offers a premium option with additional advantages. If available, adopting DD Boost can be a good choice.
My customer was interested in ransomware protection. Currently, Dell offers the Cyber Vault solution, which is separate from Data Domain.
Ideally, ransomware protection would be integrated directly within DD Boost, without requiring an additional out-of-the-box solution. This feature is currently available with HPE's Zerto and Huawei's Ocean Protect with third-party products like PradoNet.
While Cyber Vault exists as a separate solution from Data Domain, having some standard protection for immutable backups into DD Boost would be a valuable addition and make it more competitive with other vendors.