what is it?
The ability to recover from a disaster in order to restore partial to full operations.
The processes, policies and procedures of restoring operations critical to the resumption of business, including regaining access to data (records, hardware, software, etc.), communications (incoming, outgoing, toll free, fax, etc.), workspace, and other business processes after a natural or human induced disaster.
Many companies would consider their tolerance for downtime to be zero.
Why do I need Disaster Recovery?
If you cannot be without your computer system for an extended period of time
In today’s day and age that is just about everybody. Life is bound to happen your hard-drive crashed on your most important computer or the tape back ups failed for the past month. If you are like most businesses you cannot be without your computer system for an extended period of time.
If you are regulated by Federal Regulations
If you have a government contract the last thing you want is data to go missing. In most contracts you can expect to have disaster recovery as one of the main points.
If your business cannot be disabled for an extended period of time
If your business stopped making money today, how long can it last before you have to go into reserves? How long can your business last on reserves funds? What critical functions will fail as a result of the income stoppage?