AU-4: Audit Storage Capacity

CSF v1.1 References:

PF v1.0 References:

Threats Addressed:


  • Low
    • AU-4
  • Moderate
    • AU-4
  • High
    • AU-4

Next Version:

Control Statement

The organization allocates audit record storage capacity in accordance with [Assignment: organization-defined audit record storage requirements].

Supplemental Guidance

Organizations consider the types of auditing to be performed and the audit processing requirements when allocating audit storage capacity. Allocating sufficient audit storage capacity reduces the likelihood of such capacity being exceeded and resulting in the potential loss or reduction of auditing capability.

Control Enhancements

AU-4(1): Transfer To Alternate Storage


(Not part of any baseline)

The information system off-loads audit records [Assignment: organization-defined frequency] onto a different system or media than the system being audited.