VERITAS Enterprise Administrator UserÆs Guide 5.0 (September 2006)

47Glossary
DRL
A VxVM mechanism that tracks mirror write inconsistency which helps in fast resynchronization of
mirrors after system crash. Even though the term log is used, internally DRL is implemented as a
map.
Dynamic Multipathing
See DMP.
enclosure
A disk array.
FastResync
A VxVM feature for fast resynchronizing of stale mirrors at the time of reattach which were earlier
split off as a result of snapshot or detach operation.
gap
A disk region that does not contain Veritas Volume Manager objects (subdisks).
graphical view
A window that displays a graphical view of objects. In VxVM, the graphical views include the Object
View window and the Volume Layout Details window.
grid
A tabular display of objects and their properties. The grid lists Veritas Volume Manager objects,
disks, controllers, or file systems. The grid displays objects that belong to the group icon that is
currently selected in the object tree. The grid is dynamic and constantly updates its contents to reflect
changes to objects.
group icon
The icon that represents a specific object group.
GUI
Graphical User Interface.
host
A machine or system.
launch
To start a task or open a window.
LUN
Logical Unit Number. Each disk in an array has a LUN. Disk partitions may also be assigned a LUN.
main window
The main VERITAS Volume Manager window. This window contains a tree and grid that display
volumes, disks, and other objects on the system. The main window also has a menu bar, a toolbar, and
an optional Command Launcher.
menu
A list of options or tasks. A menu item is selected by pointing to the item and clicking the mouse.
menu bar
A bar that contains a set of menus for the current window. The menu bar is typically placed across the
top of a window.