HP StorageWorks A7298A Manual page 76

Glossary
Mode
A term used to describe a light path through a fiber, as in multi-mode or single-mode.
Multi-initiators
Two different Fibre Channel HBAs in one arbitrated loop sharing the same storage devices, but
not communicating with each other.
Multi-Mode Fiber
An optical waveguide in which light travels in multiple modes. Typical core/cladding sizes
(measured in microns) are 50/125, 62.5/125, and 100/140.
Multiplexing
The process by which two or more signals are transmitted over a single communications
channel.
NetWare Peripheral Architecture (NWPA)
Network architecture that provides a broader and more reliable driver support for third-party
host adapters and storage devices. The NPWA separates NetWare driver support into two
components: a Host Adapter Module (HAM), and a Custom Device Module (CDM). See also
Custom Device Module and Host Adapter Module.
nm
-9
Nanometer. A unit of measurement equal to one billionth of a meter. 10 meter.
Non-OFC
Non-Open Fiber Control. GLMs that do not contain OFC control but still guarantee laser
emission levels to be below Class 1.
OFC
Open Fiber Control. A power monitoring/control system which continuously monitors the
optical fiber link between two ports and prevents any laser emission from exceeding Class 1
levels in the event of a break anywhere in the path.
Glossary–6 host bus adapter for Windows and Linux installation guide