Storage System node

A Storage System node represents a single storage array chassis. It is the container node for the other nodes modeling the structure of storage entities.

Creation/update

A Storage System node is created or updated when a storage entity is discovered by one of the following:

WBEM queries to storage management software triggered by the creation or update of an SI representing storage management software
Directly discovered storage using WBEM queries to the WBEM/SMI-S provider triggered by the creation or update of a Storage Device node representing the onboard controller of the storage array chassis
Directly discovered storage using SNMP triggered by the creation or update of a Storage Device node representing the onboard controller of the storage array chassis

Removal

The removal of a Storage System node is governed by aging in the same way as Host nodes. However, in the case of the Storage System, it is the relationships between the Storage System and its manager that are aged. The manager is either:

The SI representing the management software
The Storage Device representing the onboard controller of the storage array chassis

Case 1 - Single manager

When the manager is scanned and the Storage System is no longer discovered, the management relationship begins to age. If it is not discovered in ten days and seven scans (the default), the relationship is removed. If the Storage System has no relationships to a manager, then it is removed.

Case 2 - Multiple managers

Where a Storage System has multiple managers, SIs, Storage Devices, or both, each management relationship ages in the same way as the single manager case. If the Storage System is no longer discovered through a manager, then the relationship between that manager and the Storage System begins to age, and after ten days and seven scans, the relationship is removed. If during this time, the Storage system has been successfully discovered at each scan through a different manager, then the relationship between that manager and the Storage System does not age. Consequently, the Storage System still has a relationship with a manager, and is not removed. When all relationships have been removed, the Storage System is removed too.

When a StorageSystem is removed, all of the nodes it contains are removed. This is Containment Removal, see Containment Removal.

Attributes and relationships of the StorageSystem node

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

UI Name Attribute Name and Type	Description
Type type : string	Storage System type
Client Access Types access_types : list:string	Storage access mechanisms
Model model : string	Device model
Status status : string	Device status
Status Detail status_detail : string	Device status detail
Vendor vendor : string	Device manufacturer
DNS Domain dns_domain : string	DNS domain the device belongs to
Serial Number serial : string	Serial number
World Wide Node Name wwnn : string	World Wide Node Name
Software Version sw_version : string	Software version
Encryption encryption : boolean	Data at rest encryption
Virtual virtual : boolean	Flag if the StorageSystem is virtual
Overall Efficiency Ratio To One Hundred overall_efficiency_ratio : int	Ratio combining data reduction, thin savings and snapshot savings
Data Reduction Ratio To One Hundred data_reduction_ratio : int	Ratio combining compression and deduplication
Compression Ratio To One Hundred compression_ratio : int	System Compression Ratio
Capability IDs __capability_ids : list:int	Capability type ids of device
Total Disk Space total_disk_space : int	Total disk space
Total Capacity total_capacity : int	Total capacity
Total Consumed Capacity total_consumed_capacity : int	Total consumed capacity
Total Subscribed Capacity total_subscribed_capacity : int	Total subscribed capacity
Allocated Capacity allocated_capacity : int	Allocated capacity
Available Capacity available_capacity : int	Available capacity
Total Logical Capacity total_logical_capacity : int	Total logical capacity
Total Logical Consumed Capacity total_logical_consumed_capacity : int	Total logical consumed capacity
Backend Storage Capacity backend_storage_capacity : int	Backend storage capacity
Not shown in UI __all_ip_addrs : list:string	Internal attribute to aid searching Devices by IP address
Not shown in UI __all_dns_names : list:string	Internal attribute to aid searching Devices by name
Scope scope : string	Distinguish overlapping address spaces
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

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

UI Name	Relationship	Description
Activity Records	ActedUpon: Activity: ActivityRecord: ActivityRecord	Record of model activity associated with this Storage System
Hardware Containers	Container: Containment: Contained: HardwareContainer	Hardware Containers contained in this Storage System
Hardware Components	Container: Containment: Contained: HardwareComponent	Hardware Components contained in this Storage System
Disk Drives	Container: Containment: ContainedDrive: DiskDrive	Disk Drives contained in this Storage System
Tape Drives	Container: Containment: ContainedDrive: TapeDrive	Tape Drives contained in this Storage System
Storage Pool	ContainedInstance: Containment: Container: StoragePool	Containing Storage Pool
Storage System Group	ContainedInstance: Containment: Container: StorageSystemGroup	Containing Storage System Group
Storage Pools	Container: Containment: ContainedPool: StoragePool	Storage Pools contained in this Storage System
Storage Processors	Container: Containment: ContainedProcessor: StorageProcessor	Storage Processors contained in this Storage System
Storage Volumes	Container: Containment: ContainedVolume: StorageVolume	Storage Volumes contained in this Storage System
Storage Volume Mirrors	Container: Containment: ContainedVolume: StorageVolumeMirror	Storage Volume Mirrors contained in this Storage System
Excluded from Model Definitions	ExcludedItem: DefinitionContainment: Definition: ModelDefinition	Model Definitions this Storage System has been excluded from
Included in Model Definitions	IncludedItem: DefinitionContainment: Definition: ModelDefinition	Model Definitions this Storage System is included in
Details	ElementWithDetail: Detail: Detail: Detail	Details belonging to this Storage System
Hardware Details	ElementWithDetail: Detail: Detail: HardwareDetail	Hardware Details belonging to this Storage System
IPv4 Addresses	DeviceWithAddress: DeviceAddress: IPv4Address: IPAddress	IPv4 addresses of this Storage System
IPv6 Addresses	DeviceWithAddress: DeviceAddress: IPv6Address: IPAddress	IPv6 addresses of this Storage System
Network Interfaces	DeviceWithInterface: DeviceInterface: InterfaceOfDevice: NetworkInterface	Network Interfaces in this Storage System
Category	ElementInCategory: ElementCategory: Category: Category	Category
File Systems	Mounter: FileSystemMount: MountedFileSystem: FileSystem	File Systems of this Storage System
Hardware In Use	Consumer: HardwareUse: Provider: HardwareContainer	Hardware Container used by this Storage System
HA Pair	Peer: HighAvailability: Peer: StorageSystem	Peer in high availability pair
Hardware Container	ContainedHost: HostContainment: HostContainer: HardwareContainer	Hardware Container of which this is a member
Host Container	ContainedHost: HostContainment: HostContainer: HostContainer	Host Container of which this is a member
Containing VM	ContainedHost: HostContainment: HostContainer: VirtualMachine	Virtual Machine containing this virtual Storage System
Weakly Identified External Element	StrongIdentity: Identification: WeakIdentity: ExternalElement	Weakly identified External Element
Location	ElementInLocation: Location: Location: Location	Location of this Storage System
Maintaining Pattern	Element: Maintainer: Pattern: Pattern	Pattern maintaining this Storage System
Managed by Host	ManagedElement: Management: Manager: Host	Host that manages this Storage System
Managed by Management Controller	ManagedElement: Management: Manager: ManagementController	Management Controller that manages this Storage System
Managed by Network Device	ManagedElement: Management: Manager: NetworkDevice	Network Device that manages this Storage System
Managed by Software Cluster	ManagedElement: Management: Manager: SoftwareCluster	Software Cluster that manages this Storage System
Managed by Software Instance	ManagedElement: Management: Manager: SoftwareInstance	Software Instance that manages this Storage System
Managed by Storage Device	ManagedElement: Management: Manager: StorageDevice	Storage Device that manages this Storage System
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
Hosts	Provider: StorageUse: Consumer: Host	Hosts using this Storage System
Disk Drive Providers	Consumer: StorageUse: Provider: DiskDrive	Disk Drives providing this Storage System
File System Providers	Consumer: StorageUse: Provider: FileSystem	File Systems providing this Storage System
Storage Volume Providers	Consumer: StorageUse: Provider: StorageVolume	Storage Volumes providing this Storage System
Hardware Support Details	ElementWithDetail: SupportDetail: HardwareDetail: SupportDetail	Hardware Support Details for this Storage System
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

The expressions of the StorageSystem node are described in the following table:

UI Name	Expression	Description
Total Disk Space	total_disk_space_display : formatQuantity(total_disk_space, "B1000")	Total disk space
Total Capacity	total_capacity_display : formatQuantity(total_capacity, "B1024")	Total capacity
Total Consumed Capacity	total_consumed_capacity_display : formatQuantity(total_consumed_capacity, "B1024")	Total consumed
Total Subscribed Capacity	total_subscribed_capacity_display : formatQuantity(total_subscribed_capacity, "B1024")	Total subscribed capacity
Total Available Capacity	total_available_capacity : formatQuantity(total_capacity - total_consumed_capacity, "B1024")	Total available capacity
Total Oversubscribed Capacity	total_oversubscribed_capacity : formatQuantity(((total_subscribed_capacity > total_capacity) and (total_subscribed_capacity - total_capacity) or 0), "B1024")	Total oversubscribed capacity
Percentage Consumed	percentage_consumed : percentageString(total_consumed_capacity, total_capacity)	Percentage consumed
Percentage Subscribed	percentage_subscribed : percentageString(total_subscribed_capacity, total_capacity)	Percentage subscribed
Allocated Capacity	allocated_capacity_display : formatQuantity(allocated_capacity, "B1024")	Allocated capacity
Available Capacity	available_capacity_display : formatQuantity(available_capacity, "B1024")	Available capacity
Backend Storage Capacity	backend_storage_capacity_display : formatQuantity(backend_storage_capacity, "B1024")	Backend storage capacity
Total Logical Capacity	total_logical_capacity_display : formatQuantity(total_logical_capacity, "B1024")	Total logical capacity
Total Logical Consumed Capacity	total_logical_consumed_capacity_display : formatQuantity(total_logical_consumed_capacity, "B1024")	Total logical consumed capacity
Number of Pools	num_pools : NODECOUNT(TRAVERSE Container:Containment:ContainedPool:StoragePool) + NODECOUNT(TRAVERSE ContainedInstance:Containment:Container:StoragePool)	Number of pools
Number of Volumes	num_volumes : NODECOUNT(TRAVERSE Container:Containment:ContainedVolume:StorageVolume)	Number of volumes
Number of Mapped Volumes	num_mapped_volumes : NODECOUNT(TRAVERSE Container:Containment:ContainedVolume:StorageVolume WHERE mapped)	Number of mapped volumes
Number of Disk Drives	num_disks : NODECOUNT(TRAVERSE Container:Containment:ContainedDrive:DiskDrive) + NODECOUNT(TRAVERSE Consumer:HardwareUse:Provider:HardwareContainer TRAVERSE Container:Containment:ContainedDrive:DiskDrive) + NODECOUNT(TRAVERSE Consumer:HardwareUse:Provider:HostContainer TRAVERSE Container:Containment:ContainedDrive:DiskDrive) + NODECOUNT(TRAVERSE ContainedHost:HostContainment:HostContainer:HardwareContainer TRAVERSE Container:Containment:ContainedDrive:DiskDrive) + NODECOUNT(TRAVERSE Container:Containment:Contained:HardwareContainer TRAVERSE Container:Containment:ContainedDrive:DiskDrive)	Number of disk drives
Number of Tape Drives	num_tape_drives : NODECOUNT(TRAVERSE Container:Containment:ContainedDrive:TapeDrive)	Number of tape drives
Number of FC Ports	num_fc_ports : NODECOUNT(TRAVERSE Container:Containment:ContainedProcessor:StorageProcessor TRAVERSE Container:Containment:Contained:FibreChannelPort)	Number of FC ports
Number of File Systems	num_filesystems : NODECOUNT(TRAVERSE Mounter:FileSystemMount:MountedFileSystem:FileSystem)	Number of file systems