A SAN attached production file server is required to be backed up nightly according to company policy. Recently the data to be backed up has increased to approximately 4TB. Currently, the server has a single attached LTO2 tape drive. Which of the following should the server administrator do to provide enough backup capacity for the nightly job?

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D. Replace the single tape drive with a tape library. An LTO2 tape offers 200 GB native capacity (400 GB compressed), and an LTO3 offers 400 GB native (800 GB compressed). Backing up 4TB nightly with a single drive, even LTO3, would require 5 tape changes, which is impractical for an automated job. A tape library provides multiple drives and automated tape handling, allowing for much larger, unattended backups.

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A. Replace the backup software with a more efficient application. While efficient backup software can aid in deduplication or compression, it cannot increase the physical storage capacity of the tape media to accommodate 4TB when a single LTO2 tape is only 200GB native.

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B. Reduce the amount of data to be backed up. Reducing the amount of data to be backed up would violate the company policy requiring a full nightly backup and is not a technical solution to the capacity problem.

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C. Replace the LTO2 tape drive with an LTO3 tape drive. Replacing the LTO2 drive with an LTO3 drive (400 GB native, 800 GB compressed) would still require five LTO3 tapes to back up 4TB, which is not feasible for an automated nightly job with a single tape drive.

A SAN attached production file server is required to be backed up nightly according to company policy. Recently the data to be backed up has increased to approximately 4TB. Currently, the server has a

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