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CP-9(6) CP · Contingency Planning

Redundant Secondary System

LOW MODERATE HIGH
1 Overlay 1 Related Control
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Requirements NIST SOURCE

Conduct system backup by maintaining a redundant secondary system that is not collocated with the primary system and that can be activated without loss of information or disruption to operations.

Discussion (NIST Supplemental Guidance)

The effect of system backup can be achieved by maintaining a redundant secondary system that mirrors the primary system, including the replication of information. If this type of redundancy is in place and there is sufficient geographic separation between the two systems, the secondary system can also serve as the alternate processing site.

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 CP-9(6) 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. system backup is conducted by maintaining a redundant secondary system that is not collocated with the primary system;
  2. system backup is conducted by maintaining a redundant secondary system that can be activated without loss of information or disruption to operations.

Examine

[SELECT FROM: Contingency planning policy; procedures addressing system backup; contingency plan; system backup test results; contingency plan test results; contingency plan test documentation; redundant secondary system for system backups; location(s) of redundant secondary backup system(s); system security plan; other relevant documents or records].

Interview

[SELECT FROM: Organizational personnel with system backup responsibilities; organizational personnel with information security responsibilities; organizational personnel with responsibility for the redundant secondary system].

Test

[SELECT FROM: Organizational processes for maintaining redundant secondary systems; mechanisms supporting and/or implementing system backups; mechanisms supporting and/or implementing information transfer to a redundant secondary system].

Overlays

Showing the OT/ICS overlay for the parent control CP-9 — see the CP-9(6) 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

  • Base control: Included (matches standard baseline)

MODERATE

  • Base control: Included (matches standard baseline)
  • Included: (1) (8)

HIGH

  • Base control: Included (matches standard baseline)
  • Included: (1) (2) (3) (5) (8)

STIGs & CCIs

No STIG checks or CCI mappings are currently loaded for CP-9(6). 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

  • Contingency planning policy
  • contingency plan
  • contingency plan test results
  • contingency plan test documentation
  • system security plan

Testing

  • Organizational processes for maintaining redundant secondary systems
  • mechanisms supporting and/or implementing system backups
  • mechanisms supporting and/or implementing information transfer to a redundant secondary system

Other Records

  • procedures addressing system backup
  • system backup test results
  • redundant secondary system for system backups
  • location(s) of redundant secondary backup system(s)
  • other relevant documents or records