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Cluster node

A Cluster node represents a group of hosts collaborating to form a cluster. The Cluster node represents the group rather than a single physical entity. They are also used represent mainframe sysplexes. Cluster nodes are under the full control of patterns.

For detailed information about patterns, see the The-Pattern-Language-TPL and Configipedia.

Cluster node lifecycle

The following section describes the scenarios in which a Cluster node is created, updated, or removed.

Creation

The creation of a Cluster node is under the full control of patterns. Clusters are created when they are detected on a host by a pattern which is searching for them. The pattern contains the conditions which enable it to detect a cluster. Once found, the pattern creates the Cluster that it needs. A relationship link is automatically created to the Host node and the Cluster will have a key generated.

The generated key for a Cluster node is entirely dependent on the kind of Cluster.

Update

The update procedure for a Cluster node is also under full control of patterns. When the pattern has identified a cluster, it calculates a key. If a Cluster node with that key already exists, it is updated accordingly.

Removal

A Cluster node can be destroyed either manually or automatically. Cluster nodes are automatically removed when the last remaining Host node or MFPart is unlinked. In some cases, particular patterns might not create a cluster until hosts are detected. In these cases, the pattern will remove the Cluster node when there is only one host linked to it. For vCenter cluster nodes, cluster nodes are removed when a VMware cluster no longer exists.

To manually remove a Cluster node, find the necessary Cluster, select it in the list and pick Destroy from the Actions list. Aging of Clusters node are controlled by a Software Instance node. For more information about cluster aging, see Software-Instance-node.

This is a Cascade Removal type, see Cascade Removal.

Attributes of the Cluster node

The attributes of the Cluster node are described in the following table:

UI Name
Attribute Name and Type		Description 
Type
type : string 		Type of cluster
Subtype
subtype : string 		Subtype
Internal Identifier
id : string 		Internal Identifier of cluster
Internal Name
cluster_name : string 		Internal Name of cluster
Failover
failover : boolean 		Whether the cluster supports failover between members
Tags
tag_set : dictionary 		Tag set
Key
key : string 		Globally unique key
Name
name : string 		Primary name
Short Name
short_name : string 		Short name
Description
description : string 		Description of the element
URL
url : string 		URL for information about the element
Business Continuity Critical
business_continuity_critical : boolean 		If true, element is critical to operation of the business
Supported by 3rd Party
third_party_support : boolean 		True if the element is supported by a third party
Synonyms
synonyms : list:string 		Other names for the element
External Identifiers
external_ids : list:string 		Identifiers for this element in other systems
Cloud Identifier
cloud_id : string 		Unique cloud identifier

Relationships of the Cluster node

The relationships of the Cluster node are described in the following table:

UI Name Relationship Description 
Activity Records ActedUpon:
Activity:
ActivityRecord:
ActivityRecord 		Record of model activity associated with this Cluster
Deployments Member:
Collection:
Collection:
Deployment 		Deployments this Cluster is a member of
Namespace Member:
Collection:
Collection:
Namespace 		Namespace this Cluster is in
Administrative Collections Member:
Collection:
Collection:
AdminCollection 		Administrative Collections this Cluster is a member of
Collections Member:
Collection:
Collection:
Collection 		Collections this Cluster is a member of
Subnets Member:
Collection:
Collection:
Subnet 		Subnets this Cluster is a member of
Deployments Collection:
Collection:
Member:
Deployment 		Deployments that are members of this Cluster
Namespaces Collection:
Collection:
Member:
Namespace 		Namespaces defined in this Cluster
Software Pods Collection:
Collection:
Member:
SoftwarePod 		Software Pods that are members of this Cluster
Clusters Container:
Containment:
Contained:
Cluster 		Clusters contained in this Cluster
Cluster Contained:
Containment:
Container:
Cluster 		Containing Cluster
Cluster Members Container:
Containment:
Contained:
ClusterMember 		Cluster Members contained in this Cluster
Load Balancer Services Container:
Containment:
ContainedService:
LoadBalancerService 		Load Balancer Services contained in this Cluster
Excluded from Model Definitions ExcludedItem:
DefinitionContainment:
Definition:
ModelDefinition 		Model Definitions this Cluster has been excluded from
Included in Model Definitions IncludedItem:
DefinitionContainment:
Definition:
ModelDefinition 		Model Definitions this Cluster is included in
Clusters This Depends On Dependant:
Dependency:
DependedUpon:
Cluster 		Clusters that this Cluster depends on
Clusters Depending Upon This DependedUpon:
Dependency:
Dependant:
Cluster 		Clusters that depend on this Cluster
Contained Software Instances This Depends On Dependant:
Dependency:
DependedUpon:
ContainedSoftwareInstance 		Contained Software Instances that this Cluster depends on
Databases This Depends On Dependant:
Dependency:
DependedUpon:
Database 		Databases that this Cluster depends on
Database Details This Depends On Dependant:
Dependency:
DependedUpon:
DatabaseDetail 		Database Details that this Cluster depends on
Details This Depends On Dependant:
Dependency:
DependedUpon:
Detail 		Details that this Cluster depends on
Files This Depends On Dependant:
Dependency:
DependedUpon:
File 		Files that this Cluster depends on
Runtime Environments This Depends On Dependant:
Dependency:
DependedUpon:
RuntimeEnvironment 		Runtime Environments that this Cluster depends on
Software Clusters This Depends On Dependant:
Dependency:
DependedUpon:
SoftwareCluster 		Software Clusters that this Cluster depends on
Software Components This Depends On Dependant:
Dependency:
DependedUpon:
SoftwareComponent 		Software Components that this Cluster depends on
Software Instances This Depends On Dependant:
Dependency:
DependedUpon:
SoftwareInstance 		Software Instances that this Cluster depends on
Software Pods This Depends On Dependant:
Dependency:
DependedUpon:
SoftwarePod 		Software Pods that this Cluster depends on
Virtual Machines This Depends On Dependant:
Dependency:
DependedUpon:
VirtualMachine 		Virtual Machines that this Cluster depends on
Contained Software Instances Depending Upon This DependedUpon:
Dependency:
Dependant:
ContainedSoftwareInstance 		Contained Software Instances that depend on this Cluster
Databases Depending Upon This DependedUpon:
Dependency:
Dependant:
Database 		Databases that depend on this Cluster
Details Depending Upon This DependedUpon:
Dependency:
Dependant:
Detail 		Details that depend on this Cluster
Software Clusters Depending Upon This DependedUpon:
Dependency:
Dependant:
SoftwareCluster 		Software Clusters that depend on this Cluster
Software Components Depending Upon This DependedUpon:
Dependency:
Dependant:
SoftwareComponent 		Software Components that depend on this Cluster
Software Containers Depending Upon This DependedUpon:
Dependency:
Dependant:
SoftwareContainer 		Software Containers that depend on this Cluster
Software Instances Depending Upon This DependedUpon:
Dependency:
Dependant:
SoftwareInstance 		Software Instances that depend on this Cluster
Software Pods Depending Upon This DependedUpon:
Dependency:
Dependant:
SoftwarePod 		Software Pods that depend on this Cluster
Virtual Machines Depending Upon This DependedUpon:
Dependency:
Dependant:
VirtualMachine 		Virtual Machines that depend on this Cluster
Category ElementInCategory:
ElementCategory:
Category:
Category 		Category
HA Pair Peer:
HighAvailability:
Peer:
Cluster 		Peer in high availability pair
Member Hosts HostContainer:
HostContainment:
ContainedHost:
Host 		Hosts that are part of this Cluster
Member Network Devices HostContainer:
HostContainment:
ContainedHost:
NetworkDevice 		Network Devices that are part of this Cluster
Member Virtual Machines HostContainer:
HostContainment:
ContainedHost:
VirtualMachine 		Virtual Machines that are part of this Cluster
Member MF Parts HostContainer:
HostContainment:
ContainedHost:
MFPart 		MF Parts that are part of this Sysplex
Member Coupling Facilities HostContainer:
HostContainment:
CouplingFacility:
CouplingFacility 		Coupling Facilities that are part of this Sysplex
Managed Services ServiceHost:
HostedService:
RunningService:
ClusterService 		Services managed by this Cluster
Candidate Software Instances Host:
HostedSoftware:
RunningSoftware:
CandidateSoftwareInstance 		Candidate Software Instances running on this Cluster
Contained Software Instances Host:
HostedSoftware:
RunningSoftware:
ContainedSoftwareInstance 		Contained Software Instances running on this Cluster
External Elements Host:
HostedSoftware:
RunningSoftware:
ExternalElement 		External Elements running on this Cluster
Runtime Environments Host:
HostedSoftware:
RunningSoftware:
RuntimeEnvironment 		Runtime Environments running on this Cluster
Software Containers Host:
HostedSoftware:
RunningSoftware:
SoftwareContainer 		Software Containers running on this Cluster
Software Instances Host:
HostedSoftware:
RunningSoftware:
SoftwareInstance 		Software Instances running on this Cluster
Software Pods Host:
HostedSoftware:
RunningSoftware:
SoftwarePod 		Software Pods running on this Cluster
Unassigned Connections Host:
HostedSoftware:
RunningSoftware:
UnassignedConnections 		Unassigned Connections running on this Cluster
Virtual Machines Host:
HostedSoftware:
RunningSoftware:
VirtualMachine 		Virtual Machines running on this Cluster
Primary Business Application InferredElement:
Inference:
Primary:
BusinessApplicationInstance 		Business Application from which the existence of this Cluster was inferred
Primary Business Service InferredElement:
Inference:
Primary:
BusinessService 		Business Service from which the existence of this Cluster was inferred
Primary Technical Service InferredElement:
Inference:
Primary:
TechnicalService 		Technical Service from which the existence of this Cluster was inferred
Primary Container InferredElement:
Inference:
Primary:
ContainerInfo 		Container from which the existence of this Cluster was inferred
Primary Contained Software Instance InferredElement:
Inference:
Primary:
ContainedSoftwareInstance 		Contained Software Instance from which the existence of this Cluster was inferred
Primary Device Info InferredElement:
Inference:
Primary:
DeviceInfo 		Device Info from which the existence of this Cluster was inferred
Primary Discovered Application Component InferredElement:
Inference:
Primary:
DiscoveredApplicationComponent 		Discovered Application Component from which the existence of this Cluster was inferred
Primary Discovered Cloud API Result List InferredElement:
Inference:
Primary:
DiscoveredCloudAPIResultList 		Discovered Cloud API Result List from which the existence of this Cluster was inferred
Primary Discovered Coupling Facility InferredElement:
Inference:
Primary:
DiscoveredCouplingFacility 		Discovered Coupling Facility from which the existence of this Cluster was inferred
Primary Discovered Database InferredElement:
Inference:
Primary:
DiscoveredDatabase 		Discovered Database from which the existence of this Cluster was inferred
Primary Discovered Database Detail InferredElement:
Inference:
Primary:
DiscoveredDatabaseDetail 		Discovered Database Detail from which the existence of this Cluster was inferred
Primary Discovered Directory Entry InferredElement:
Inference:
Primary:
DiscoveredDirectoryEntry 		Discovered Directory Entry from which the existence of this Cluster was inferred
Primary Discovered Disk Drive InferredElement:
Inference:
Primary:
DiscoveredDiskDrive 		Discovered Disk Drive from which the existence of this Cluster was inferred
Primary Discovered File InferredElement:
Inference:
Primary:
DiscoveredFile 		Discovered File from which the existence of this Cluster was inferred
Primary Discovered File System InferredElement:
Inference:
Primary:
DiscoveredFileSystem 		Discovered File System from which the existence of this Cluster was inferred
Primary Discovered HBA InferredElement:
Inference:
Primary:
DiscoveredHBA 		Discovered HBA from which the existence of this Cluster was inferred
Primary Discovered IP Address InferredElement:
Inference:
Primary:
DiscoveredIPAddress 		Discovered IP Address from which the existence of this Cluster was inferred
Primary Listening Port InferredElement:
Inference:
Primary:
DiscoveredListeningPort 		Listening Port from which the existence of this Cluster was inferred
Primary Discovered MFPart InferredElement:
Inference:
Primary:
DiscoveredMFPart 		Discovered MFPart from which the existence of this Cluster was inferred
Primary Discovered MQ Detail InferredElement:
Inference:
Primary:
DiscoveredMQDetail 		Discovered MQ Detail from which the existence of this Cluster was inferred
Primary Discovered Mainframe InferredElement:
Inference:
Primary:
DiscoveredMainframe 		Discovered Mainframe from which the existence of this Cluster was inferred
Primary Discovered Mainframe View Result InferredElement:
Inference:
Primary:
DiscoveredMainframeViewResult 		Discovered Mainframe View Result from which the existence of this Cluster was inferred
Primary Discovered Network Interface InferredElement:
Inference:
Primary:
DiscoveredNetworkInterface 		Discovered Network Interface from which the existence of this Cluster was inferred
Primary Discovered Process InferredElement:
Inference:
Primary:
DiscoveredProcess 		Discovered Process from which the existence of this Cluster was inferred
Primary Discovered Program InferredElement:
Inference:
Primary:
DiscoveredProgram 		Discovered Program from which the existence of this Cluster was inferred
Primary Discovered Registry Entry InferredElement:
Inference:
Primary:
DiscoveredRegistryEntry 		Discovered Registry Entry from which the existence of this Cluster was inferred
Primary Discovered Service InferredElement:
Inference:
Primary:
DiscoveredService 		Discovered Service from which the existence of this Cluster was inferred
Primary Discovered Software InferredElement:
Inference:
Primary:
DiscoveredSoftware 		Discovered Software from which the existence of this Cluster was inferred
Primary Discovered Storage Subsystem InferredElement:
Inference:
Primary:
DiscoveredStorageSubsystem 		Discovered Storage Subsystem from which the existence of this Cluster was inferred
Primary Discovered Sysplex InferredElement:
Inference:
Primary:
DiscoveredSysplex 		Discovered Sysplex from which the existence of this Cluster was inferred
Primary Discovered Tape Drive InferredElement:
Inference:
Primary:
DiscoveredTapeDrive 		Discovered Tape Drive from which the existence of this Cluster was inferred
Primary Discovered Transaction InferredElement:
Inference:
Primary:
DiscoveredTransaction 		Discovered Transaction from which the existence of this Cluster was inferred
Primary Discovered Virtual Machine InferredElement:
Inference:
Primary:
DiscoveredVirtualMachine 		Discovered Virtual Machine from which the existence of this Cluster was inferred
Primary Host Info InferredElement:
Inference:
Primary:
HostInfo 		Host Info from which the existence of this Cluster was inferred
Primary MF Part InferredElement:
Inference:
Primary:
MFPart 		MF Part from which the existence of this Cluster was inferred
Primary Network Connection List InferredElement:
Inference:
Primary:
NetworkConnectionList 		Network Connection List from which the existence of this Cluster was inferred
Primary Software Component InferredElement:
Inference:
Primary:
SoftwareComponent 		Software Component from which the existence of this Cluster was inferred
Primary Software Container InferredElement:
Inference:
Primary:
SoftwareContainer 		Software Container from which the existence of this Cluster was inferred
Primary Software Instance InferredElement:
Inference:
Primary:
SoftwareInstance 		Software Instance from which the existence of this Cluster was inferred
Location ElementInLocation:
Location:
Location:
Location 		Location of this Cluster
Maintaining Pattern Element:
Maintainer:
Pattern:
Pattern 		Pattern maintaining this Cluster
Managed by Cluster ManagedElement:
Management:
Manager:
Cluster 		Cluster that manages this Cluster
Managed Clusters Manager:
Management:
ManagedElement:
Cluster 		Clusters that this Cluster manages
Managed by Contained Software Instance ManagedElement:
Management:
Manager:
ContainedSoftwareInstance 		Contained Software Instance that manages this Cluster
Managed by Network Device ManagedElement:
Management:
Manager:
NetworkDevice 		Network Device that manages this Cluster
Managed by Software Cluster ManagedElement:
Management:
Manager:
SoftwareCluster 		Software Cluster that manages this Cluster
Managed by Software Instance ManagedElement:
Management:
Manager:
SoftwareInstance 		Software Instance that manages this Cluster
Managed Collections Manager:
Management:
ManagedElement:
Collection 		Collections that this Cluster manages
Managed Administrative Collections Manager:
Management:
ManagedElement:
AdminCollection 		Administrative Collections that this Cluster manages
Managed Storage Systems Manager:
Management:
ManagedElement:
StorageSystem 		Storage Systems that this Cluster manages
Managed Storage System Groups Manager:
Management:
ManagedElement:
StorageSystemGroup 		Storage System Groups that this Cluster manages
Business Owner OwnedItem:
Ownership:
BusinessOwner:
Person 		The person or owner responsible for this element from a business perspective
IT Owner OwnedItem:
Ownership:
ITOwner:
Person 		The person or owner responsible for this element from an IT perspective
Support Manager OwnedItem:
Ownership:
SupportOwner:
Person 		The person or owner responsible for the support of this element
Owner OwnedItem:
Ownership:
Owner:
Person 		The owner of this element
Containing Business Application ContainedSoftware:
SoftwareContainment:
SoftwareContainer:
BusinessApplicationInstance 		Containing Business Application
Containing Business Service ContainedSoftware:
SoftwareContainment:
SoftwareContainer:
BusinessService 		Containing Business Service
Containing Technical Service ContainedSoftware:
SoftwareContainment:
SoftwareContainer:
TechnicalService 		Containing Technical Service
Cloud Service Service:
SoftwareService:
ServiceProvider:
CloudService 		Cloud Service that provides this logical cluster
Service Software Cluster Service:
SoftwareService:
ServiceProvider:
SoftwareCluster 		Software Clusters that provide this logical cluster
Service Software Service:
SoftwareService:
ServiceProvider:
SoftwareInstance 		Software Instances that provide this logical cluster
Software Support Details ElementWithDetail:
SupportDetail:
SoftwareDetail:
SupportDetail 		Software Support Details for this Cluster
Attachments AttachmentContainer:
Attachment:
Attachment:
Attachment 		A file attached to this element
Category ElementInCategory:
ElementCategory:
Category:
Category 		Category
Family ElementInCategory:
ElementCategory:
Category:
Family 		Family
Lifecycle Status ElementInCategory:
ElementCategory:
Category:
LifecycleStatus 		Lifecycle Status
Recovery Time ElementInCategory:
ElementCategory:
Category:
RecoveryTime 		Recovery Time
Location ElementInLocation:
Location:
Location:
Location 		Location of this Managed Element
Business Owner OwnedItem:
Ownership:
BusinessOwner:
Person 		The person or owner responsible for this element from a business perspective
IT Owner OwnedItem:
Ownership:
ITOwner:
Person 		The person or owner responsible for this element from an IT perspective
Support Manager OwnedItem:
Ownership:
SupportOwner:
Person 		The person or owner responsible for the support of this element
Owner OwnedItem:
Ownership:
Owner:
Person 		The owner of this element
Organizational Unit OwnedItem:
Ownership:
Owner:
OrganisationalUnit 		Organizational Unit that this Managed Element belongs to

Expressions of the Cluster node

The expressions of the Cluster node are described in the following table: {anchor:exprs}

UI Name Expression Description
Number of Members num_members : nodecount(traverse HostContainer:HostContainment:ContainedHost:) Number of members

 

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