M
MAC

medium access control.

MII

media independent interface.

MPI

message passing interface.

MMF

multimode filter.

MPxIO

multipath I/O (Sun StorEdge Traffic Manager).

MAC address

The physical address of an Ethernet network expressed as a 48-bit number.

MTBF

mean time between failures.

MTTR

mean time to recover and repair. The average or expected value of the independent and identically distributed downtimes.

Mutex

mutual exclusion (locks).

Metadata

Data about data.

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