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Creating and Using Oracle® Solaris Zones

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Updated: August 2019
 
 

Zones Glossary

brand

An instance of the BrandZ functionality, which provides non-global zones that contain non-native operating environments used for running applications.

branded zone

An isolated environment in which to run non-native applications in non-global zones.

cap

A limit that is placed on system resource usage.

capping

The process of placing a limit on system resource usage.

datalink

An interface at Layer 2 of the OSI protocol stack, which is represented in a system as a STREAMS DLPI (v2) interface. This interface can be plumbed under protocol stacks such as TCP/IP. In the context of Oracle Solaris 10 zones, data-links are physical interfaces, aggregations, or VLAN-tagged interfaces. A datalink can also be referred to as a physical interface, for example, when referring to a NIC or a VNIC.

default pool

The pool created by the system when pools are enabled.

See also resource pool.

default processor set

The processor set created by the system when pools are enabled.

See also processor set.

dynamic configuration

Information about the disposition of resources within the resource pools framework for a given system at a point in time.

dynamic reconfiguration

On SPARC based systems, the ability to reconfigure hardware while the system is running. Also known as DR.

extended accounting

A flexible way to record resource consumption on a task basis or process basis in the Oracle Solaris operating system.

fair share scheduler

A scheduling class, also known as FSS, that allows you to allocate CPU time that is based on shares. Shares define the portion of the system's CPU resources allocated to a project.

FSS

See fair share scheduler.

global administrator

The root user or an administrator with the root role. When logged in to the global zone, the global administrator or a user granted the appropriate authorizations can monitor and control the system as a whole.

See also zone administrator.

global scope

Actions that apply to resource control values for every resource control on the system.

global zone

The zone contained on every Oracle Solaris system. When non-global zones are in use, the global zone is both the default zone for the system and the zone used for system-wide administrative control.

See also non-global zone.

immutable zone

A zone configured with a read-only root.

local scope

Local actions taken on a process that attempts to exceed the control value.

locked memory

Memory that cannot be paged.

memory cap enforcement threshold

The percentage of physical memory utilization on the system that will trigger cap enforcement by the resource capping daemon.

naming service database

The name service information database for both LDAP containers and local files.

native zones

solaris branded non-global zones. Zones of other brands, such as the labeled and solaris10, or solaris-kz brands are not native zones.

The operating system level within a running native zone always matches the level of the global zone. Because the same kernel is used, no system-call translation is performed.

Note that native zones are branded solaris in Oracle Solaris 11 and native in Oracle Solaris 10.

non-global zone

A virtualized operating system environment created within a single instance of the Oracle Solaris operating system. The Oracle Solaris Zones software partitioning technology is used to virtualize operating system services. The packages in a non-global zone are identical to the global zone packages because the zones share the same kernel.

non-global zone administrator

See zone administrator.

Oracle Solaris Zones

A software partitioning technology used to virtualize operating system services and provide an isolated, secure environment in which to run applications.

pool

See resource pool.

pool daemon

The poold system daemon that is active when dynamic resource allocation is required.

project

A network-wide administrative identifier for related work.

processor set

A disjoint grouping of CPUs. Each processor set can contain zero or more processors. A processor set is represented in the resource pools configuration as a resource element. Configured using the pset resource pool element.

resident set size

The size of the resident set. The resident set is the set of pages that are resident in physical memory.

resource

An aspect of the computing system that can be manipulated with the intent to change application behavior.

resource capping daemon

A daemon that regulates the consumption of physical memory by processes running in projects that have resource caps defined.

resource consumer

Fundamentally, an Oracle Solaris process. Process model entities such as the project and the task provide ways of discussing resource consumption in terms of aggregated resource consumption.

resource control

A per-process, per-task, or per-project limit on the consumption of a resource.

resource management

A functionality that enables you to control how applications use available system resources.

resource partition

An exclusive subset of a resource. All of the partitions of a resource sum to represent the total amount of the resource available in a single executing Oracle Solaris instance.

resource pool

A configuration mechanism that is used to partition machine resources. A resource pool represents an association between groups of resources that can be partitioned.

resource set

A process-bindable resource. Most often used to refer to the objects constructed by a kernel subsystem offering some form of partitioning. Examples of resource sets include scheduling classes and processor sets.

RSS

See resident set size.

scanner

A kernel thread that identifies infrequently used pages. During low memory conditions, the scanner reclaims pages that have not been recently used.

static pools configuration

A representation of the way in which an administrator would like a system to be configured with respect to resource pools functionality.

task

In resource management, a process collective that represents a set of work over time. Each task is associated with one project.

working set size

The size of the working set. The working set is the set of pages that the project workload actively uses during its processing cycle.

workload

An aggregation of all processes of an application or group of applications.

ZBE

Zone boot environment.

zone administrator

The rights of a zone administrator are confined to a non-global zone.

See also global administrator.

zone state

The status of a non-global zone. The zone state is one of configured, incomplete, installed, ready, unavailable, running, or shutting down.