The legacy Storage Area Network (SAN) storage went out of order and disrupted the ERP system of your company. As the lack of inventory for this legacy storage model, it takes two days to get a new one and recover the system. The contingency plan for this system is activated. Which of the following interim measures is least likely adopted?
A. Implementation of redundant information system functions
B. Recovery of information system functions using alternate equipment
C. Performance of information system functions using manual methods
D. Relocation of information systems and operations to an alternate site
Kindly be reminded that the suggested answer is for your reference only. It doesn’t matter whether you have the right or wrong answer. What really matters is your reasoning process and justifications.
My suggested answer is A. Implementation of redundant information system functions.
Redundant information system functions should have been implemented before the disruption happened.
Answer options B, C, and D are mentioned in NIST SP 800-34 R1. To sustain the services during disruption, functions can be done manually, alternative equipment can be used (e.g., a PC server with IDE hard drives), or relocate to the alternate site.
Business first. We don’t have to insist on recovering the system with a SAN solution. If a manual operation can be an alternative, a PC server with IDE hard drives as an interim measure won’t be a problem.