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Important This documentation space contains information about the on-premises version of BMC Helix Discovery. If you are using the SaaS version of BMC Helix Discovery, see BMC Helix Discovery (SaaS).

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 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

Relationships of the StorageSystem node

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 Cluster ManagedElement:
Management:
Manager:
Cluster 		Cluster that manages this Storage System
Managed by Contained Software Instance ManagedElement:
Management:
Manager:
ContainedSoftwareInstance 		Contained Software Instance that manages 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

Expressions of the StorageSystem node

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

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
Pools num_pools : NODECOUNT(TRAVERSE Container:Containment:ContainedPool:StoragePool) + NODECOUNT(TRAVERSE ContainedInstance:Containment:Container:StoragePool) Number of pools
Volumes num_volumes : NODECOUNT(TRAVERSE Container:Containment:ContainedVolume:StorageVolume) Number of volumes
Mapped Volumes num_mapped_volumes : NODECOUNT(TRAVERSE Container:Containment:ContainedVolume:StorageVolume WHERE mapped) Number of mapped volumes
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
Tape Drives num_tape_drives : NODECOUNT(TRAVERSE Container:Containment:ContainedDrive:TapeDrive) Number of tape drives
FC Ports num_fc_ports : NODECOUNT(TRAVERSE Container:Containment:ContainedProcessor:StorageProcessor TRAVERSE Container:Containment:Contained:FibreChannelPort) Number of FC ports
File Systems num_filesystems : NODECOUNT(TRAVERSE Mounter:FileSystemMount:MountedFileSystem:FileSystem) Number of file systems

 

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BMC Helix Discovery 25.2 (On-Premises)