Dell Compellent Series 30 - Manual (Page 439)

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LUN
A logical unit is a conceptual division (a subunit) of a storage disk or a set of disks. Each logical unit has an
address, known as the logical unit number (LUN), which allows it to be uniquely identified.
M
MAC Address
In computer networking a Media Access Control address (MAC address) is a quasi-unique identifier
attached to most network adapters (NICs). It is a number that acts like a name for a particular network
adapter, so, for example, the network cards (or built-in network adapters) in two different computers will
have different names, or MAC addresses. It is possible to change the MAC address.
Management IP Address
Address used to used to connect to Storage Center. Each controller has its own IP address, but the
management IP address remains constant. If, In a dynamic controller system, a controller fails or is
replaced, Storage Center the system connection remains.
Managed Disks
Disks that are grouped together to form a discrete bundle, across which data is striped and from which
volumes are created.
Manual Replay
Storage Center feature that allows the user to manually create point in time copies of volumes.
Mapping (Volume to Server)
Mapping defines which servers can access specific volumes. Once this linkage is established, the volume
will appear to the server as a single, local disk drive of the specified size.
Mentoring Controller
During installation or after replacing or adding a controller, the mentoring controller copies system
configuration to the new or added controller. Either the lead or peer controller can become a mentoring
controller.
MIB
Management Information Base. A database of objects that can be accessed by SNMP.
Multipathing
Redundant storage components that transfer data between server and storage. These components include
cabling, adapters, switches, and the software that enables multipathing.
N
NAS
Network Attached Storage