SI-13(3)—Manual Transfer Between Components
>Control Description
Manually initiate transfers between active and standby system components when the use of the active component reaches ⚙organization-defined percentage of the mean time to failure.
>Supplemental Guidance
For example, if the MTTF for a system component is 100 days and the MTTF percentage defined by the organization is 90 percent, the manual transfer would occur after 90 days.
>Assessment Interview Topics
Questions assessors commonly ask
Process & Governance:
- •What policies and procedures govern manual transfer between components?
- •Who is responsible for monitoring system and information integrity?
- •How frequently are integrity monitoring processes reviewed and updated?
Technical Implementation:
- •What technical controls detect and respond to manual transfer between components issues?
- •How are integrity violations identified and reported?
- •What automated tools support system and information integrity monitoring?
Evidence & Documentation:
- •Can you provide recent integrity monitoring reports or alerts?
- •What logs demonstrate that SI-13(3) is actively implemented?
- •Where is evidence of integrity monitoring maintained and for how long?
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