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A minimum of two Oracle redo log groups/files must be defined and configured to be stored on separate, archived physical disks or archived directories on a RAID device.


Overview

Finding ID Version Rule ID IA Controls Severity
V-219828 O121-BP-021600 SV-219828r533025_rule Medium
Description
The Oracle redo log files store the detailed information on changes made to the database. This information is critical to database recovery in case of a database failure.
STIG Date
Oracle Database 12c Security Technical Implementation Guide 2021-12-13

Details

Check Text ( C-21539r533023_chk )
From SQL*Plus:

select count(*) from V$LOG;

If the value of the count returned is less than 2, this is a finding.

From SQL*Plus:

select count(*) from V$LOG where members > 1;

If the value of the count returned is less than 2 and a RAID storage device is not being used, this is a finding.
Fix Text (F-21538r533024_fix)
To define additional redo log file groups:

From SQL*Plus (Example):

alter database add logfile group 2
('diska:log2.log' ,
'diskb:log2.log') size 50K;

To add additional redo log file [members] to an existing redo log file group:

From SQL*Plus (Example):

alter database add logfile member 'diskc:log2.log'
to group 2;

Replace diska, diskb, diskc with valid, different disk drive specifications.

Replace log#.log file with valid or custom names for the log files.