Resource and Property Types (System Administration Guide: Virtualization Using the Solaris Operating System)

System Administration Guide: Virtualization Using the Solaris Operating System

Resource and Property Types

The resource and property types are described as follows:

zonename

The name of the zone. The following rules apply to zone names:

Each zone must have a unique name.
A zone name is case-sensitive.
A zone name must begin with an alphanumeric character.

The name can contain alphanumeric characters, underbars (_), hyphens (-), and periods (.).
The name cannot be longer than 64 characters.
The name global and all names beginning with SUNW are reserved and cannot be used.

zonepath

The zonepath property is the path to the zone root. Each zone has a path to its root directory that is relative to the global zone's root directory. At installation time, the global zone directory is required to have restricted visibility. It must be owned by root with the mode 700.

The non-global zone's root path is one level lower. The zone's root directory has the same ownership and permissions as the root directory (/) in the global zone. The zone directory must be owned by root with the mode 755. These directories are created automatically with the correct permissions, and do not need to be verified by the zone administrator. This hierarchy ensures that unprivileged users in the global zone are prevented from traversing a non-global zone's file system.

Path	Description
`/home/export/my-zone`	`zonecfg` `zonepath`
`/home/export/my-zone/root`	Root of the zone
`/home/export/my-zone/root/dev`	Devices created for the zone

See Traversing File Systems for a further discussion of this issue.

Note –

You can move a zone to another location on the same system by specifying a new, full zonepath with the move subcommand of zoneadm. See Moving a Non-Global Zone for instructions.

autoboot

If this property is set to true, the zone is automatically booted when the global zone is booted. Note that if the zones service, svc:/system/zones:default is disabled, the zone will not autoboot, regardless of the setting of this property. You can enable the zones service with the svcadm command described in the svcadm(1M) man page:

global# svcadm enable zones

bootargs

This property is used to set a boot argument for the zone. The boot argument is applied unless overridden by the reboot, zoneadm boot, or zoneadm reboot commands. See Zone Boot Arguments.

pool

This property is used to associate the zone with a resource pool on the system. Multiple zones can share the resources of one pool. Also see dedicated-cpu Resource.

limitpriv

This property is used to specify a privilege mask other than the default. See Privileges in a Non-Global Zone.

Privileges are added by specifying the privilege name, with or without the leading priv_. Privileges are excluded by preceding the name with a dash (-) or an exclamation mark (!). The privilege values are separated by commas and placed within quotation marks (“).

As described in priv_str_to_set(3C), the special privilege sets of none, all, and basic expand to their normal definitions. Because zone configuration takes place from the global zone, the special privilege set zone cannot be used. Because a common use is to alter the default privilege set by adding or removing certain privileges, the special set default maps to the default, set of privileges. When default appears at the beginning of the limitpriv property, it expands to the default set.

The following entry adds the ability to use DTrace programs that only require the dtrace_proc and dtrace_user privileges in the zone:

global# zonecfg -z userzone
zonecfg:userzone> set limitpriv="default,dtrace_proc,dtrace_user"

If the zone's privilege set contains a disallowed privilege, is missing a required privilege, or includes an unknown privilege, an attempt to verify, ready, or boot the zone will fail with an error message.

scheduling-class

This property sets the scheduling class for the zone. See Scheduling Class for additional information and tips.

ip-type

This property is required to be set only if the zone is an exclusive-IP zone. See Exclusive-IP Non-Global Zones and How to Configure the Zone.

dedicated-cpu

This resource dedicates a subset of the system's processors to the zone while it is running. The dedicated-cpu resource provides limits for ncpus and, optionally, importance. For more information, see dedicated-cpu Resource.

capped-cpu

This resource sets a limit on the amount of CPU resources that can be consumed by the zone while it is running. The capped-cpu resource provides a limit for ncpus. For more information, see capped-cpu Resource.

capped-memory

This resource groups the properties used when capping memory for the zone. The capped-memory resource provides limits for physical, swap, and locked memory. At least one of these properties must be specified.

dataset

Adding a ZFS^TM dataset resource enables the delegation of storage administration to a non-global zone. The zone administrator can create and destroy file systems within that dataset, and modify properties of the dataset. The zone administrator cannot affect datasets that have not been added to the zone or exceed any top level quotas set on the dataset assigned to the zone.

ZFS datasets can be added to a zone in the following ways.

As an lofs mounted file system, when the goal is solely to share space with the global zone
As a delegated dataset

See Chapter 10, ZFS Advanced Topics, in Solaris ZFS Administration Guide and File Systems and Non-Global Zones.

Also see Chapter 28, Troubleshooting Miscellaneous Solaris Zones Problems for information on dataset issues.

fs

Each zone can have various file systems that are mounted when the zone transitions from the installed state to the ready state. The file system resource specifies the path to the file system mount point. For more information about the use of file systems in zones, see File Systems and Non-Global Zones.

inherit-pkg-dir (native brand only)

OpenSolaris native brand: This resource should not be configured in a whole root zone.

In a native branded sparse root zone, the inherit-pkg-dir resource is used to represent directories that contain packaged software that a non-global zone shares with the global zone.

The contents of software packages transferred into the inherit-pkg-dir directory are inherited in read-only mode by the non-global zone. The zone's packaging database is updated to reflect the packages. These resources cannot be modified or removed after the zone has been installed using zoneadm.

Note –

Four default inherit-pkg-dir resources are included in the configuration. These directory resources indicate which directories should have their associated packages inherited from the global zone. The resources are implemented through a read-only loopback file system mount.

/lib
/platform
/sbin
/usr

net

The network interface resource is the interface name. Each zone can have network interfaces that should be set up when the zone transitions from the installed state to the ready state.

device

The device resource is the device matching specifier. Each zone can have devices that should be configured when the zone transitions from the installed state to the ready state.

rctl

The rctl resource is used for zone-wide resource controls. The controls are enabled when the zone transitions from the installed state to the ready state.

See Setting Zone-Wide Resource Controls for more information.

Note –

To configure zone-wide controls using the set global_property_name subcommand of zonefig instead of the rctl resource, see How to Configure the Zone.

hostid

A hostid that is different from the hostid of the global zone can be set.

attr

This generic attribute can be used for user comments or by other subsystems. The name property of an attr must begin with an alphanumeric character. The name property can contain alphanumeric characters, hyphens (-), and periods (.). Attribute names beginning with zone. are reserved for use by the system.