What will happen if any of the below occur:

• Physical damage to a storage element (such as a disk) that can result in data loss.
• People make mistakes and unhappy employees or external hackers may breach security and maliciously destroy data.
• Software failures can destroy or lose data and viruses can destroy data, impact data integrity, and halt key operations.
• Physical security breaches can destroy equipment that contains data and applications.
• Natural disasters and other events such as earthquakes, lightning strikes, floods, tornados, hurricanes, accidents, chemical spills, and power grid failures can cause not only the loss of data but also the loss of an entire computer facility.

Offsite data storage is often justified to protect a business from these types of events.

• Government regulations may require certain data to be kept for extended timeframes. Corporations may establish their own extended retention policies for intellectual property to protect them against litigation. The regulations and business requirements that drive data as an archive generally require data to be retained at an offsite location.

With the above and many more of such reasons, having a copy of the data is very important.

That means BACKUP and RECOVERY are the most important parts of an Information Life Cycle (ILM).

It is all about recovery

Just having a copy of the Data is not useful; recovering the data is the objective of backing up the Data.

• Businesses back up their data to enable its recovery in case of potential loss

• Businesses also back up their data to comply with regulatory requirements

• Types of backup derivatives :
Disaster Recovery