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.

Transactional consistency

An I/O operation is transactionally consistent if it is true that either all steps of the I/O operation complete successfully, or none of them do. The data being operated on reflects either the complete transaction, or remains unchanged.