Compare and contrast the following disaster recovery options: empty shell, recovery operations center, and internally provided backup. Rank them from most risky to least risky, as well as most costly to least costly
The lowest cost method is internally provided backup. With this method, organizations with multiple data processing centers may invest in internal excess capacity and support themselves in the case of disaster in one data processing center. This method is not as risky as the mutual aid pact because reliance on another organization is not a factor. In terms of cost, the next highest method is the empty shell where two or more organizations buy or lease space for a data processing center. The space is made ready for computer installation; however, no computer equipment is installed. This method requires lease or mortgage payments, as well as payment for air conditioning and raised floors. The risk of this method is that the hardware, software, and technicians may be difficult, if not impossible, to have available in the case of a natural disaster. Further, if multiple members' systems crash simultaneously, an allocation problem exists. The method with lowest risk and also the highest cost is the recovery operations center. This method takes the empty shell concept one step further - the computer equipment is actually purchased and software may even be installed. Assuming that this site is far enough away from the disaster-stricken area not to be affected by the disaster, this method can be a very good safeguard.
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