Information
OL 9 must take action when allocated audit record storage volume reaches 75 percent of the repository maximum audit record storage capacity.
GROUP ID: V-271599
RULE ID: SV-271599r1134856
If security personnel are not notified immediately when storage volume reaches a maximum of 75 percent utilization, they are unable to plan for audit record storage capacity expansion. The notification can be set to trigger at lower utilization thresholds at the ISSO's discretion.
Solution
Configure OL 9 to initiate an action to notify the SA and ISSO (at a minimum) when allocated audit record storage volume reaches (at most) 75 percent of the repository maximum audit record storage capacity by adding/modifying the following line in the /etc/audit/auditd.conf file:
space_left = 25%