- nametag
A Daemon Monitor nametag that regroups a process tree. A nametag
corresponds to a daemon or a group of daemons launched by a startup script.
See also Daemon Monitor and startup script.
- netmask
A number that defines how many of the upper bits of an IP
address identify a network. In class C addresses, the netmask is 24 bits.
The upper 24 bits of a class C address identify the network, and the lower
8 bits identify the node.
See network part and host part.
- network
See also cluster network and external network.
- network part
The upper part of an IP address. The network part of an IP
address identifies the network on which a node resides.
See also host part and netmask.
- nhinstall
A tool that facilitates the installation and configuration
of the Foundation Services, the Solaris operating environment, and optionally,
user applications on a cluster.
- NIC
(network interface card)
- NMA
(Node Management Agent)
A service that monitors
cluster statistics, initiates a switchover, changes the recovery response
for daemon failure, and listens for notifications of some cluster events.
The NMA is a JMX compliant management agent based on the Java Dynamic Management
Kit.
- node
The basic unit of hardware on which the Foundation Services run. A node
is generally a single-board computer equipped with a CPU, memory, and I/O.
A node can also contain some secondary storage in the form of flash or compact
flash memory.
See also master node, peer node,
and nonpeer node.
- node address triplet
See address triplet.
- nodeid
(node identification number)
The number that identifies
a node within a cluster.
See also domainid.
- Node Management Agent
See NMA.
- Node State Manager
See NSM.
- nonpeer node
A node that is not configured as a member of a cluster. A
nonpeer node can communicate with one or more peer nodes to access resources
or services provided by a cluster.
See also node
and peer node.
- nonshared packages
Packages that are not shared between the master node and the
vice-master node. Nonshared packages must be added to both master-eligible
nodes.
See also shared packages.
- notification
An information message sent by the nhcmmd
daemon on a local node to services or applications registered to receive it.
- NSM
(Node State Manager)
A service that configures
a floating external address for an external interface on the master node.
After a failover or switchover, the NSM configures a floating external address
for an external interface on the new master node.
See also floating external address, master node, failover,
and switchover.