The glossary below contains many of the terms you will find in common use throughout the Symantec Security Response website. Please refer to this list to find definitions of terms and answers to other Internet security-related questions.

Dirty Region Logging DRL

Dirty region logging (DRL) uses a log-based recovery method to quickly resynchronize all the copies of a mirrored volume when a system is restarted following a system crash. A log can be created when a volume is created, or it can be added later.