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.


A set of one or more subdisks within a striped plex. Striping is achieved by allocating data alternately and evenly across the columns within a plex.

A column refers to an area on the disk where all or a portion of the volume resides. Striped volumes, RAID-5, and mirrored striped (RAID 0+1) volumes contain multiple columns. Other volume types contain one column.