• Typically a full copy of the data – But can have a changes stored separately
• Stored on separate media from the original – Preferably in a different location
Backup ⎯ Protecting our current production data and should something fail and we get corruption or accidental deletion, we can recover as near current as possible.
Backup is about recovering our operational data whereas archive is about storing infrequently used data over a long period.
What is more important to a financial institution? High availability Data protection Data integrity
Two copies of incorrect data is worthless, so data integrity is more important. Obviously, once you have the data integrity then you are going to want the data protection and high availability. So data integrity is the highest criteria.