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. A tape library contains multiple tape drives and an automated tape changer, allowing a backup job to span many tapes and run concurrently across drives. This scales both capacity and throughput far beyond what a single standalone drive can provide, making it the correct solution for a 4TB nightly backup requirement.

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A. Replace the backup software with a more efficient application. Backup software efficiency improvements cannot overcome the physical capacity ceiling of a single LTO2 tape drive, which holds roughly 200GB native.

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B. Reduce the amount of data to be backed up. Reducing the data to be backed up violates the business requirement and does not address the underlying capacity problem.

Answer

C. Replace the LTO2 tape drive with an LTO3 tape drive. An LTO3 drive holds approximately 400GB native or 800GB compressed, which is still far below the 4TB requirement.

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…

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