aliases and other text-based tables of
information in a computer network.
NMP
(Network Management Protocol) Suite of
network protocols that define the processes,
procedures and policies for managing, monitoring
and maintaining a computer network. NMP
conveys and manages the operations and
communications performed on a computer
network.
NTP
(Network Time Protocol) A protocol designed to
synchronize the clocks of devices over a
network.
O
Offline replication
In asynchronous replication, an offline, or
manual, replication is a replication process that
you start manually on a storage pool. With offline
replication, you can replicate the data in the
storage pool to the remote , or to a USB storage
device attached to the primary .
OU
(Organizational Unit) A useful type of directory
object that is contained within domains is the
organizational unit (OU). OUs are Active
Directory containers into which you can place
users, groups, computers, and other OUs. An
OU cannot contain objects from other domains.
An OU is the smallest scope or unit to which you
can assign Group Policy settings or delegate
administrative authority. Using OUs, you can
create containers within a domain that represent
the hierarchical, logical structures in your
organization. You can then manage the
configuration and use of accounts and resources
based on your organizational model. OUs can
contain other OUs. You can extend a hierarchy
of OUs as necessary to model your
organization's hierarchy within a domain. Using
OUs helps you minimize the number of domains
that are required for your network. You can use
OUs to create an administrative model that you
can scale to any size. A user can have
administrative authority for all OUs in a domain
or for a single OU. An administrator of an OU
does not have to have administrative authority
for any other OUs in the domain.
P
PCIe
Peripheral Component Interconnect Express. A
computer expansion card standard designed to
replace the older Peripheral Component
Interconnect (PCI), PCI-eXtended (PCI-X), and
Accelerated Graphics Port (AGP) standards.
Pool
A storage pool is a user-defined virtual grouping
of volumes on the . Pools allow you to organize
your storage into logical groups; expose file
systems as shares to CIFS clients (Windows-
based systems) and NFS clients (UNIX/Linux-
based systems); and replicate all the data in the
pool, or just a subset of it, for disaster recovery.
E-Centre™ allows you to create as many storage
pools as there are available volumes (RAID sets)
on the system. If the has both internal storage
(E5100™) and a Nexsan NST5100X™ Expander
unit connected externally via SAS, you can
create storage pools by combining volumes from
both the NST5100™ Storage and the Nexsan
NST5100X™—provided the RAID level
configurations are the same on both storage
systems (or, enclosures).
Power supply unit (PSU)
A module that regulates electrical power to the
components of Nexsan storage units.
Primary
In asynchronous replication, a primary site refers
to an that contains the data to be replicated (to a
remote, or secondary, ). An can be the primary
site in a replicated environment and also perform
double-duty as the remote data replication site
for another .
Glossary
Nexsan Unity Hardware Reference Guide
www.nexsan.com
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