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Glossary
Quantum TC2201E User’s Guide 177
iSNS iSNS allows the administrator to go beyond a simple device-by-
device management model, where each storage device is
manually and individually configured with its own list of known
initiators and targets. Using iSNS, each storage device
subordinates its discovery and management responsibilities to
the iSNS server. The iSNS server thereby serves as the
consolidated configuration point through which management
stations can configure and manage the entire storage network.
L
link For Fibre Channel, it is a connection between two nodes, each
having at least one N_Port (or the other end could be an F-Port),
interconnected by a pair of optical or copper links, one inbound
and one outbound.
LUN Logical Unit Number or Logical Unit; a subdivision of a SCSI
target. For SCSI-2, each SCSI target supports up to sixteen
LUNs (LUN-0 to LUN-15). Using LUNs, the iSCSI host can
address multiple peripheral devices that may share a common
controller.
LVD/SE Low Voltage Differential/Single-Ended
M
management information
base (MIB)
A structured set of data variables, called objects, in which each
variable represents some resource to be managed. A related
collection of resources to be managed.
mapping table A table which is indexed by sequential LUN values, indicating
selected BUS:TARGET:LUN devices. It is used by the TC2201E
to perform Fibre Channel-to-SCSI operations by default.
MB megabyte. (There are 8 bits in a byte.)
MIB See Management Information Base.
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