What are the benefits of encrypting data at the drive level vs. using an appliance in the network or software encryption?
Encrypting at the tape drive level can provide performance and capacity advantages for administrators. Encryption at the tape drive level enables compression before encryption, maximizing tape capacities, and allows high performance during backup. Encrypting using an appliance device in the network can create latencies that affect backup performance, and requires management of the additional device. Encrypting data at tape speed helps to avoid the need for host-based encryption of data — and the concurrent drain on host performance.
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