Phoenix RPC12 Series, Cli Reference Manual

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Glossary 8
I/O Input/output.
IP Internet Protocol.
JBOD Just a Bunch of Disks. An expansion enclosure that is directly attached
to a host.
Kbyte Kilobyte (KB).
LAN See local area network (LAN) .
leftover drive A disk drive that contains metadata but is no longer part of a virtual
disk.
local area network
(LAN) Local Area Network. A communications infrastructure designed to use
dedicated wiring over a limited distance (typically a diameter of less
than five kilometers) to connect to a large number of
intercommunicating nodes. (SNIA)
logical unit number
(LUN) The SCSI identifier of a logical unit with a target. (SNIA)
For example, a LUN identifies the mapping between a volume (logical
unit) and a host port (target).
loop address Indicates the unique ID of a node in FC loop topology. A loop address
is sometimes referred to as a Loop ID.
loop port (L_Port) A “Loop” port is capable of performing arbitrated loop functions and
protocols. NL_Ports and FL_Ports are examples of loop-capable ports.
(SNIA)
loop topology See Fibre Channel-Arbitrated Loop (FC-AL) .
LUN See logical unit number (LUN) .
management
controller (MC) The processor (located in a controller module) that is primarily
responsible for human-computer interface and computer-computer
interface functions, and interacts with the storage controller.
management host A workstation with a direct or local connection to the system and that is
used to manage the system.