Veritas: Terminology & DefinitionsΒΆ

Title:Veritas: Terminology & Definitions
Author:Douglas O’Leary <>
Description:Veritas: Terminology & Definitions
Date created:08/2008
Date updated:09/2002
Disclaimer:Standard: Use the information that follows at your own risk. If you screw up a system, don’t blame it on me...

Terms and definitions:

Term Defintion
Disk group: Collection of data, volumes, and associated parts (subdisks, plexes, and vmdisks).
Volume: Virtual partition on which filesystems are created or databases operate.
Data plex: 1 copy of the data.
Log plex: Logging information for volumes (RAID 5 or DRL). Displayed with a double border.
Subdisks: Contiguous regions on a disk. 4096 is the limit on the number of subdisks per physical volume. Don’t do that.
VM Disks: Public region of a physical disk.