VERITAS Storage Foundation 4.1 Oracle Administrator's Guide

Prerelease 8 September 2005, 8:55am
522 VERITAS Storage Foundation for Oracle Administrator’s Guide
boot disk
A disk used for booting an operating system.
buffered I/O
A mode of I/O operation (where I/O is any operation, program, or device that transfers data to or
from a computer) that first transfers data into the Operating System buffer cache.
cache
Any memory used to reduce the time required to respond to an I/O request. The read cache holds
data in anticipation that it will be requested by a client. The write cache holds data written until it
can be safely stored on non-volatile storage media.
Cached Quick I/O
Cached Quick I/O allows databases to make more efficient use of large system memory while still
maintaining the performance benefits of Quick I/O. Cached Quick I/O provides an efficient,
selective buffering mechanism to complement asynchronous I/O.
cluster
A set of hosts that share a set of disks.
cluster-shareable disk group
A disk group in which the disks are shared between more than one host.
cold backup
The process of backing up a database that is not in active use.
command launcher
A graphical user interface (GUI) window that displays a list of tasks that can be performed by
VERITAS Volume Manager or other objects. Each task is listed with the object type, task (action),
and a description of the task. A task is launched by clicking on the task in the Command Launcher.
concatenation
A VERITAS Volume Manager layout style characterized by subdisks that are arranged sequentially
and contiguously.
configuration database
A set of records containing detailed information on existing VERITAS Volume Manager objects
(such as disk and volume attributes). A single copy of a configuration database is called a
configuration copy.