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.

RAID-5 Volume

A fault-tolerant volume with data and parity striped intermittently across three or more physical disks. Parity is a calculated value that is used to reconstruct data after a failure. If a portion of a physical disk fails, the data on the failed portion can be recreated from the remaining data and parity. You can create RAID-5 volumes only on dynamic disks. You cannot mirror RAID-5 volumes.