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SI-13(3) SI · System and Information Integrity

Manual Transfer Between Components

LOW MODERATE HIGH
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Requirements NIST SOURCE

Manually initiate transfers between active and standby system components when the use of the active component reaches [percentage] of the mean time to failure.

Discussion (NIST 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.

Implementation Guidance

Engineering Interpretation

Original engineering commentary written for this explorer — not NIST source text and not authoritative guidance.

No engineering interpretation has been authored for SI-13(3) yet. This section is architected to receive it — see the Requirements and Assessment sections above for the authoritative NIST source content in the meantime.

Assessment

NIST SP 800-53A REV 5.2.0

Assessment Objectives

  1. the percentage of the mean time to failure for transfers to be manually initiated is defined;
  2. transfers are initiated manually between active and standby system components when the use of the active component reaches <SI-13(03)_ODP percentage> of the mean time to failure.

Examine

[SELECT FROM: System and information integrity policy; system and information integrity procedures; procedures addressing predictable failure prevention; system design documentation; system configuration settings and associated documentation; system audit records; system security plan; other relevant documents or records].

Interview

[SELECT FROM: Organizational personnel responsible for MTTF activities; organizational personnel with information security responsibilities; system/network administrators; organizational personnel with contingency planning responsibilities].

Test

[SELECT FROM: Organizational processes for managing MTTF and conducting the manual transfer between active and standby components].

Overlays

Showing the OT/ICS overlay for the parent control SI-13 — see the SI-13(3) entries within each baseline below.

OT/ICS Overlay SP 800-82r3

NIST SP 800-82r3 Appendix F, Table 22. Blank baseline means the control/control enhancement is not selected in that initial OT baseline.

LOW

Not applicable at this tier.

MODERATE

Not applicable at this tier.

HIGH

  • Base control: Added (beyond standard baseline)

STIGs & CCIs

No STIG checks or CCI mappings are currently loaded for SI-13(3). This section is architected to display, per product: STIG ID, Finding ID, Severity, Title, Description, Check, Fix, CCI, and NIST control mapping — but nothing is populated here until a real DISA STIG/CCI dataset is ingested.

Learn more about STIG/CCI integration →

Evidence

Potential Evidence — Derived

Categorized from the SP 800-53A "Examine"/"Test" artifact list above by keyword — not an authoritative NIST evidence list.

Policy

  • System and information integrity policy
  • system security plan

Configuration

  • system design documentation
  • system configuration settings and associated documentation

Testing

  • Organizational processes for managing MTTF and conducting the manual transfer between active and standby components

Other Records

  • system and information integrity procedures
  • procedures addressing predictable failure prevention
  • system audit records
  • other relevant documents or records