Glossary ● 175
channel
Any path used for the transfer of data and the control of information
between disk drives and a RAID controller.
controller
A hardware device that interprets signals between a host and a disk
drive. Also known as an adapter or card. See also I/O.
copyback
Adaptec RAID controller feature that allows data that has been moved
to a hot spare to be returned to its original location once the controller
detects that the failed drive has been replaced.
D
DAS
Direct-attached Storage. Data storage that is physically connected to a
server. See also LAN, SAN.
drive segment
See segment.
E
Email Notification Manager
A utility within Adaptec Storage Manager that emails event messages to
selected recipients. See also email notifications, Notification Manager.
email notifications
Event messages about remote systems that are emailed to selected
recipients.
event
Activity on your storage space, such as a disk drive failure or logical
drive verification.
F
fault tolerance
The ability of a system to continue to perform its functions even when
one or more disk drives have failed.
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