scrgadm(1M)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXIT STATUS | ATTRIBUTES | SEE ALSO | NOTES

NAME

scrgadm– manage registration and unregistration of resource types, resource groups, and resources

SYNOPSIS

Show Current Configuration

scrgadm -p[v[v]] [-t resource_type_name] [-g resource_group_name] [-j resource_name]


Resource Type Commands

scrgadm -a -t resource_type_name [-h RT_installed_node_list] [-f registration_file_path]
scrgadm -c -t resource_type_name -h RT_installed_node_list
scrgadm -r -t resource_type_name


Resource Group Commands

scrgadm -a -g RG_name [-h nodelist] [-y property […]]
scrgadm -c -g RG_name [-h nodelist] -y property [-y property […]]
scrgadm -r -g RG_name


Resource Commands

scrgadm -a -j resource_name -t resource_type_name -g RG_name [-y property […]] [-x extension_property […]]
scrgadm -c -j resource_name [-y property […]] [-x extension_property […]]
scrgadm -r -j resource_name


Logical Host Name Resource Commands

scrgadm -a -L -g RG_name [-j resource_name] -l hostnamelist [-n netiflist] [-y property […]]


Shared Address Resource Commands

scrgadm -a -S -g RG_name -l hostnamelist [-j resource_name] [-n netiflist] [-X auxnodelist] [-y property […]]

DESCRIPTION

A resource type specifies common properties and callback methods for all resources of that type. Before you can create a resource of a particular type, you must first register the resource type using the following form of the command:

# scrgadm -a -t resource_type_name

A resource group contains a set of resources, all of which are brought online or offline together on a given node or set of nodes. You first create an empty resource group before placing any resources in it. To create a resource group, use the command:

# scrgadm -a -g RG_name

There are two types of resource groups: failover and scalable.

A failover resource group is online on only one node at a time. A failover resource group can contain resources of any type although scalable resources that are configured in a failover resource group run on only one node at a time.

To create a failover resource group named MyDatabaseRG, use:

# scrgadm -a -g MyDatabaseRG

A scalable resource group can be online on several nodes at once. A scalable resource group can contain only resources that support scaling and cannot contain resources that are constrained, by their resource type definition, to only failover behavior.

To create a scalable resource group named MyWebServerRG, use:

# scrgadm -a -g MyWebServerRG \\ -y Maximum_primaries=integer \\ -y Desired_primaries=integer

A newly created resource group is in an UNMANAGED state. After creating resources in the group, use the scswitch(1M) command to put a resource group in a MANAGED state.

To create a resource of a given type in a resource group, use the command:

# scrgadm -a -j resource_name -t resource_type_name -g RG_name

Creating a resource causes the underlying RGM mechanism to take several actions. It calls the VALIDATE method on the resource to verify that the property settings of the resource are valid. If the VALIDATE method completes successfully and the resource group has been put in a MANAGED state, the RGM initializes the resource by calling the INIT method on the resource. The RGM then brings the resource online if it is enabled and its resource group is online.

To remove a resource group, first remove all resources from that resource group. To remove a resource, first disable it with the scswitch(1M) command. Removing a resource causes the RGM to clean up after the resource by calling the FINI method on that resource.

OPTIONS

Action Options

Action options specify the actions performed by the command. Only one action option is allowed on the command line.

The following action options are supported:

-a

Adds a new configuration. Use with these options:

-g

Creates a resource group.

You need solaris.cluster.resource.modify RBAC authorization to use this command option with -a, -c, or -r. See rbac(5).

-j

Creates a resource.

You need solaris.cluster.resource.modify RBAC authorization to use this command option with -a, -c, or -r. See rbac(5).

-t

Adds a resource type.

You need solaris.cluster.resource.modify RBAC authorization to use this command option with -a, -c, or -r. See rbac(5).

-c

Modifies an existing configuration. Only values of the specified properties are set. Other properties retain their current values. Use with these options:

-g

Modifies a resource group.

You need solaris.cluster.resource.modify RBAC authorization to use this command option with -a, -c, or -r. See rbac(5).

-j

Modifies a resource.

You need solaris.cluster.resource.modify RBAC authorization to use this command option with -a, -c, or -r. See rbac(5).

-t

Modifies a resource type.

You need solaris.cluster.resource.modify RBAC authorization to use this command option with -a, -c, or -r. See rbac(5).

-r

Removes configuration. Use with these options:

-g

Removes a resource group.

You need solaris.cluster.resource.modify RBAC authorization to use this command option with -a, -c, or -r. See rbac(5).

-j

Removes a resource.

You need solaris.cluster.resource.modify RBAC authorization to use this command option with -a, -c, or -r. See rbac(5).

-t

Removes a resource type.

You need solaris.cluster.resource.modify RBAC authorization to use this command option with -a, -c, or -r. See rbac(5).

-p

Displays existing configuration information. Use with these options:

-g resource_group_name

Displays specific resource group configuration information.

You need solaris.cluster.resource.read RBAC authorization to use this command option with -p. See rbac(5).

-j resource_name

Displays specific resource configuration information.

You need solaris.cluster.resource.read RBAC authorization to use this command option with -p. See rbac(5).

-t resource_type_name

Displays specific resource type configuration information.

You need solaris.cluster.resource.read RBAC authorization to use this command option with -p. See rbac(5).

-v[v]           

Displays more verbose output.

You need solaris.cluster.resource.read RBAC authorization to use this command option with -p. See rbac(5).

If you do not specify any -g, -j, or -t options, information about all resource types, resource groups, and resources currently configured on the cluster are provided by default.

Multiple -g, -j, and -t options are supported and can be combined with any combination of -v options.

You can use up to two -v options on a single command line.

Target Options

Target options identify the target object. The following target options are supported:

-g RG_name

Resource group.

-j resource_name

Resource. When used with the -a option, the -t and -g target options must be specified in the command to indicate the type of the resource that is to be instantiated and the name of the containing resource group.

-t resource_type_name

Resource type.

Resource Type-Specific Options

The following options are supported:

-f registration_file_path

Is valid with -a. It is the path name of the resource type registration file and is required if the file is not in the well-known directory (usually /usr/cluster/lib/rgm/rtreg).

-h RT_installed_node_list

Is valid with -a and -c. It is a comma-separated list of node names upon which this resource type is installed. Resources of this type can be instantiated only in resource groups whose nodelist is a subset of this list.

-h is optional with the -a option. If -h is not specified, it implies that the resource type has been installed on all nodes. Doing so permits resources of this type to be instantiated in any resource group.

-h is required with the -c option. In this case, you must specify -h with either a new installed node list or with an escaped wildcard character (\\*). The wildcard character indicates that the resource type has been installed on all nodes. If you do not specify an installed node list or the wildcard character (*), the wildcard character is used by default.

---

Note –

A comma is not allowed in a node name.

---

-t resource_type_name

Is valid with -a, -c, and -r. A resource type is defined by a resource type registration file that specifies standard and extension property values for the resource type. The registration file name is expected to be the same as the resource_type_name. This name is expected to be present in the well-known directory where registration files are usually installed (/usr/cluster/lib/rgm/rtreg). Making the file name the same as the resource_type_name enables this shorthand notation:

# scrgadm -a -t SUNW.rt:2.0

As a result, you do not need to use the following notation:

# scrgadm -a -t rtn -f full_path_to_SUNW.rt:2.0

To view the names of the currently registered resource types, use:

# scrgadm -p

Starting in Sun Cluster 3.1, the syntax of a resource type name is as follows:

vendor_id.resource_type:version

The three components of the resource type name are properties specified in the RTR file as Vendor_id, Resource_type, and RT_version. The scrgadm command inserts the period and colon delimiters. The optional Vendor_id prefix is necessary only if it is required to distinguish between two registration files of the same name provided by different vendors. The RT_version is used for upgrading from one version of a data service to another version of the data service.

To ensure that the Vendor_id is unique, use the stock symbol for the company that is creating the resource type. The resource_type_name that is used with the -t option can either be the full resource type name or an abbreviation that omits the Vendor_id. For example, both -t SUNW.iws and -t iws are valid. If there are two resource types in the cluster with names that differ only in the Vendor_id prefix, the use of the abbreviated name will fail.

The scrgadm command fails to register the resource if the RT_version string includes a blank, tab, slash, backslash, asterisk, question mark, left square bracket, or right square bracket character.

When you specify the resource_type_name with the -t option, you can omit the version component if only one version is registered.

Resource type names that you created before Sun Cluster 3.1 continue to conform to the following syntax:

vendor_id.resource_type

Resource Group-Specific Options

The following options are supported:

-h nodelist

Is valid with -a and -c. This option is a shortcut for –y Nodelist=nodelist.

-y property

Is valid with -a and -c. property is defined as a name=value pair. Multiple instances of -y property are allowed.

To set a string property to an empty value, use this option without specifying a value, as follows:

# scrgadm -y property=

Recognition of -y property names is case-insensitive.

See the rg_properties(5) man page for a description of the resource group properties.

Resource Specific Options

The following options are supported:

-x extension_property

Is valid with -a and -c. An extension_property is defined as name=value pair applicable only to a given resource type. Multiple instances of -x extension_property are allowed.

For information on the extension properties that are available for a particular data service, see the man page for that data service.

-y property

Is valid with -a and -c. property is defined as a name=value pair. Multiple instances of -y property are allowed.

To set a property to an empty value, use this option without specifying a value, as follows:

# scrgadm -y property=

Recognition of -y property names is case-insensitive.

Logical Host Name-Specific Options

These options apply to logical host name resources. There are no special commands for removing a LogicalHostname resource:

# scrgadm -r -j resource_name

resource_name is the same name supplied with the optional -j option when creating the LogicalHostname resource. If the -j option and resource_name are omitted when the LogicalHostname resource is created, then the name is generated by scrgadm.

The following options are supported:

-L

Indicates that the options that are used on the command line apply to a logical host name.

-l hostnamelist

Specifies the addresses to be shared. Use host names even though dotted IP addresses may be specified. hostnamelist is a comma-separated list of host names that are to be made available by this LogicalHostname resource. All host names in the same hostnamelist must be on the same subnet.

-j resource_name (not optional when using an IP address rather than a host name as the first argument to the -l hostnamelist)

Use this with -a to explicitly name a LogicalHostname resource when the resource is created and with -r to remove a resource from a resource group. If you do not use the -j option to explicitly name the resource, scrgadm creates the resource and assigns the name of the first host name in hostnamelist to that resource.

-n netiflist (optional)

netiflist takes the following form:

netif@node[,...]

netif may be given as network adapter name, such as le0, or as an IP Network Multipathing group name, such as sc_ipmp. The node may be a node name or node identifier. All nodes in the nodelist of the resource group must be represented in netiflist. If -n netiflist is omitted, an attempt is made to discover a net adapter on the subnet identified by the hostnamelist for each node in the nodelist. Single adapter IP Network Multipathing groups are created for discovered network adapters not already in an IP Network Multipathing group. Similarly, a single adapter IP Network Multipathing group is created for a named adapter, if a group does not already exist.

Refer to the NOTES section for more information.

-y property

Refer to the “Resource Specific Options” section for details.

Shared Address-Specific Options

All of the LogicalHostname-specific options also apply to SharedAddress resources with the following changes and additions:

-S

Indicates that the options that are used on the command line apply to a shared address.

-X auxnodelist

Is a comma-separated list of node names or identifiers. Entries on this list must be members of the cluster. These are nodes that may host the specified shared addresses, but never serve as the primary node in the case of failover.

This list is mutually exclusive with nodelist. See the description of nodelist under “Resource Group-Specific Options.”

EXIT STATUS

The following exit values are returned:

0

The command completed successfully.

A warning message might be written to the standard error even when this command completes successfully.

nonzero

An error has occurred.

Writes an error message to standard error when it exits with nonzero status.

Some operations are not permitted on resource types whose RT_System property is TRUE. Similarly, some operations are not permitted on a resource group (and its resources) whose RG_System property is TRUE. See rt_properties(5) and rg_properties(5).

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE	ATTRIBUTE VALUE
Availability	SUNWcsu
Interface Stability	Evolving

SEE ALSO

ifconfig(1M), scswitch(1M), scstat(1M), attributes(5), rg_properties(5), rt_properties(5)

NOTES

A network adapter that is not already configured for use cannot be discovered or placed into an IP Network Multipathing group during LogicalHostname and SharedAddress add operations. See ifconfig(1M).

If scrgadm exits nonzero with the error message cluster is reconfiguring, the requested operation might have completed successfully, despite the error status. If you doubt the result, you can execute scrgadm again with the same arguments after the reconfiguration is complete.

Sun Cluster 3.1  Last Revised 6 May 2003

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXIT STATUS | ATTRIBUTES | SEE ALSO | NOTES