Assume that a database contains approximately 500 gigabytes (GB) of data that is required to be backed up daily.
(a) Given a tape backup device based on LTO-2 technology (200 GB per tape and 24 megabytes per second (MB/s) transfer rate), how long will it take to perform a full backup of the data?
(b) Research the latest LTO-4 tape format (Hewlett-Packard and Tandberg Data are two possible vendors) and describe the difference in backup times that could be achieved using this new technology.
(c) Current Serial Attached SCSI (SAS) and Serial ATA (SATA) disk drives transfer data at up to 300 MB/s. Describe the difference in backup times that could be achieved using one of the technologies for ‘disk-to-disk’ backup.