Brocade Communications Systems StorageWorks 4400 Enterprise V User's Guide Page 117

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License Key A WWN-encoded sequence that is obtained from the license key fulfillment
website.
light emitting
diode
See LED.
link A connection ports on Fibre Channel devices. The link is a full duplex connection
to a fabric or a simplex connection loop devices.
logon Also called login, it is a procedure whereby a user or network connection is
identified as being an authorized network user or participant.
loop pair A Fibre Channel attachment a controller and physical disk drives. Physical disk
drives connect to controllers through paired Fibre Channel arbitrated loops. There
are two loop pairs, designated loop pair 1 and loop pair 2. Each loop pair
consists of two loops (called loop A and loop B) that operate independently
during normal operation, but provide mutual backup in case one loop fails.
LTEA Last Termination Event Array. A two-digit HSV Controller number that identifies
a specific event that terminated an operation. Valid numbers range from 00 to
47.
LUN Logical Unit Number. A SCSI convention used to identify elements. The host sees
a virtual disk as a LUN. The LUN address a user assigns to a virtual disk for a
particular host will be the LUN at which that host will see the virtual disk.
management
agent
The HP Command View EVA software that controls and monitors the Enterprise
storage system. The software can exist on more than one management server in
a fabric. Each installation is a management agent.
management
agent event
Significant occurrence to or within the management agent software, or an
initialized storage cell controlled or monitored by the management agent.
Mb Megabit. A term defining a data transfer rate.
See also Mbps.
MB Megabtye. A term defining either:
A data transfer rate.
A measure of either storage or memory capacity of 1,048,576 (2
20
) bytes.
See also MBps.
Mbps Megabits per second. A measure of bandwidth or data transfers occurring at a
rate of 1,000,000 (10
6
) bits per second.
MBps Megabytes per second. A measure of bandwidth or data transfers occurring at
a rate of 1,000,000 (10
6
) bytes per second.
mean time failures See MTBF.
Mega A notation denoting a multiplier of 1 million (1,000,000).
metadata Information that a controller pair writes on the disk array. This information is
used to control and monitor the array and is not readable by the host.
micro meter See µm.
HP StorageWorks 4400 Enterprise Virtual Array user guide 117
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