Technical data

GL–10 Glossary
logon Also called login. A procedure whereby a participant, either a person or
network connection, is identified as being an authorized network
participant.
LRU Least recently used. A cache term used to describe the block replacement
policy for read cache.
Mbps Approximately one million (10
6
) bits per second—that is, megabits per
second.
MBps Approximately one million (10
6
) bytes per second—that is, megabytes per
second.
maintenance
terminal
An EIA-423-compatible terminal used with the controller. This terminal is
used to identify the controller, enable host paths, enter configuration
information, and check the controller’s status. The maintenance terminal is
not required for normal operations.
See also local terminal.
member A container that is a storage element in a RAID array.
metadata The data written to a disk for the purposes of controller administration.
Metadata improves error detection and media defect management for the
disk drive. It is also used to support storageset configuration and
partitioning. Nontransportable disks also contain metadata to indicate they
are uniquely configured for StorageWorks environments. Metadata can be
thought of as “data about data.”
mirroring The act of creating an exact copy or image of data.
mirrorset See RAID level 1.
MIST Module Integrity Self-Test.
network A data communication, a configuration in which two or more terminals or
devices are connected to enable information transfer.
node In data communications, the point at which one or more functional units
connect transmission lines.