MoST See mobile solutions terminal.
MRPD
See machine reported product data.
MSA See multiport serial adapter.
MTBF See mean time between failures.
Multipath Subsystem Device Driver
See IBM System Storage DS8000 Multipath
Subsystem Device Driver.
multiple allegiance
A DS8000 hardware function that is
independent of software support. This
function enables multiple system images
to concurrently access the same logical
volume on the DS8000 as long as the
system images are accessing different
extents. See also extent and parallel access
volumes.
Multiple Device Manager (MDM)
A component of the IBM TotalStorage
Productivity Center that allows
administrators to configure, manage, and
monitor the performance of SAN storage
devices from a single console.
multiple relationship FlashCopy
An option of the DS8000 that creates
backup copies from one source to
multiple targets by simultaneously
establishing multiple FlashCopy
relationships.
multiple virtual storage (MVS)
Implies MVS/390, MVS/XA, MVS/ESA,
and the MVS element of the System z
operating system.
multiplex
The action of transmitting simultaneously.
multiport serial adapter (MSA)
An adapter on the IBM System Storage
Management Console that has multiple
ports to which aDS8000 can be attached.
multiprocessor
A computer that includes two or more
processors that have common access to a
main storage. For the DS8000, the
multiprocessors operate in parallel.
MVS See multiple virtual storage.
N
name server
A server that stores names of the
participating DS8000 clusters.
near-line
A type of intermediate storage between
online storage (which provides constant,
rapid access to data) and offline storage
(which provides infrequent data access for
backup purposes or long-term storage).
Netfinity
®
IBM Intel-processor-based server;
predecessor to the IBM xSeries
®
server.
Netscape Navigator
Web browser software manufactured by
Netscape.
network manager
A program or group of programs that is
used to monitor, manage, and diagnose
the problems of a network. (GC)
node The unit that is connected in a
fibre-channel network. A DS8000 is a
node in a fibre-channel network.
non-RAID
A disk drive set up independently of
other disk drives and not set up as part of
a disk pack to store data using the
redundant array of disks (RAID)
data-striping methodology.
nonremovable medium
A recording medium that cannot be
added to or removed from a storage
device.
nonvolatile storage (NVS)
Memory that stores active write data to
avoid data loss in the event of a power
loss.
NVS See nonvolatile storage.
O
octet In Internet Protocol addressing, one of the
four parts of a 32-bit integer presented in
dotted decimal notation. See also dotted
decimal notation.
OEMI See original equipment manufacturer’s
information.
open system
A system whose characteristics comply
with standards made available
Glossary 203
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