HP StorageWorks Fabric OS 5.X Master Glossary (AA-RW7NA-TE, September 2005)

LSAN zone The mechanism by which LSANs are administere d. An MP Router attached to
two fabrics will listen for the creation of matching LSAN zones on both fabrics. If
this occurs, it will create phantom domains and FC-NAT entries as appropriate,
and insert entries for them into the name servers on the fabrics. LSAN zo nes are
compatible with all standard zoning mechanisms.
LUN Logical unit number. The physical number of a device in a chain of drives
connected in series.
LWL Long wavelength. A type of fiber optic cabling that is based on 1310-mm lasers
and supports link speeds of 1 .0625, 2.125, or 4.25 Gbps. Can also refer
tothetypeofGBICorSFP.
See also SFP and SWL.
MALLOC Memory a llocation. Usually relates to buffer credits.
MAN Metropolitan area network. A com munications network that covers a
geographic area, such as a city or a suburb.
See also LAN and WAN.
Mbps Megabits per second (1,048,576 bits/second).
MBps Megabytes per second (1, 048,576 bytes/second).
meta-SAN The collection of all devices, switches, edge and backbone fabrics, LSANs,
and M P Routers that make up a physically connected but logically partitioned
storage network. LSANs span between edge fabrics using MP Routers. In a
data network, this would simply be ca lled the n et work. However, an additional
term is required to specify the difference between a sing l e-fabric network (SAN),
a multifabric network without cross-fabric connectivit y ( dual-redundant fabric
SAN), and a multifabric net work with connectivit y (meta-SAN).
metric A relative value assigned to a route to aid in calculating the shortest path
(defaults to 1000 at 1 Gbps and 500 at 2 or 4 Gbps).
MIA Media i nterface adapter. A device that converts optical connections to copper
ones, and vice-versa.
MIB Management Information Base. An SNMP structure to help with device
management, providing configuration and device information.
MMF Multimode fiber. An optical fiber with a larger c ore than singlemode fiber. It is
the most commonly used fiber for short distances, such as in LANs.
See also LAN and SWL.
MOF Managed Object Format file.
MP Management Platform. A platform running the HP Fibre Channel Routing Service
or FC-to-FC routing (for instance, the HP StorageWorks Multi-protocol Router)
thatenablestwoormorefabricstoshareresources(suchhostsorstorage
devices) without merging those fabrics. The platform could simultaneously be
used as an MP Router and as an FCIP tunnel or iSCSI gateway.
MRK Mark primitive signal. A signal that is used only in an arbitrated loop, is
vendor-specific, and is transmitted by an L_Port for synchronization and is
vendor specific.
MS Management Server. A server allows a storage area network (SAN)
management application to retrieve information and administer the fabric and
interconnected elem ents, such as switches, servers, and storage devices. The
MS is located at the Fibre Channel well-known address FFFFFAh.
MSD Management Server daemon. A daemon that monitors the MS. Includes the
Fabric Configuration Service and the Unzoned Name Server.
20
Glossary