单选题A customer requires off-site storage for 500 GB per night in backup tapes. The backup site is 560kilometers （350 miles） away. The customer does not require the backup site to run the applicationin the event of failure at the main site. What is the least expensive strategy for the data center toimplement？（）Amake online image backupsBinstall Global Mirror at the backup siteCship nightly backup tapes to the remote siteDinstall Tivoli Storage Manager （TSM） and a tape drive at the backup site
单选题
A customer requires off-site storage for 500 GB per night in backup tapes. The backup site is 560kilometers （350 miles） away. The customer does not require the backup site to run the applicationin the event of failure at the main site. What is the least expensive strategy for the data center toimplement？（）
A
make online image backups
B
install Global Mirror at the backup site
C
ship nightly backup tapes to the remote site
D
install Tivoli Storage Manager （TSM） and a tape drive at the backup site
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