Since new data is written each day, you must back up the data regularly. Use a backup strategy appropriate to your call center. Managing the tapes (storage, security, and labeling) is key to ensure that if a restore is needed, you can do it quickly and accurately. Keep enough tapes on hand to rotate the tapes so that several tapes are available always. For example, you can keep two weeks worth of tapes in stock and recycle them weekly (for an environment in which you do daily backups, you use a new tape each day of the week and repeat each weekly sequence).