Glossary ● 174
D
DAS
Direct-attached Storage. Data storage that is physically connected to a server. See also LAN, SAN.
drive segment
See segment.
dual drive failure protection
Another name for a RAID 6 or RAID 60 logical drive.
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.
firmware
A combination of hardware and software; software written onto read-only memory (ROM).
format
See initialize.
G
GB
GigaByte. 1,024 MB. See also MB.
H
host
A system that’s connected to a TCP/IP network. See also TCP/IP.
host bus adapter (HBA)
An adapter card that includes all of the I/O logic, software, and processing to manage the transfer of
information between the host and the devices it’s connected to.
hot space
A RAID 5EE logical drive. See page 158.
hot spare
A spare disk drive which will automatically replace a failed disk drive in a logical drive.
hot-swap
Remove and replace a failed disk drive in a logical drive without shutting down the server or disrupting
activity on the logical drive.
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