Which approach is commonly used for disaster recovery applications?

Which method protects data bu maintaining separate copies of the data on two or more disks?

What is one advantage of hardware of hardware RAID controllers?

What describes the basic rpm and storage capacity of an enterprise class disk drive when compared to entry level disk drives?

A company needs to backup its data without application interruption. Cost and application performance are both important. The data Can be backed up at night when the applications an intensive. What must be done to meet these requirements?