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.
Storage System node attributes
The attributes of a Storage System node are as described in the following table:
UI Name | Description |
---|---|
Type | Storage System type. |
Storage Access Mechanisms | Storage access mechanisms. |
Model | Device model. |
Vendor | Device manufacturer. |
Serial Number | Serial number. |
World Wide Node Name | World Wide Node Name. |
Software Version | Software version. |
Total Disk Space | Total disk space. |
Total Capacity | Total capacity. |
Total Consumed Capacity | Total consumed capacity. |
Total Subscribed Capacity | Total subscribed capacity. |
Allocated Capacity | Allocated capacity. |
Available Capacity | Available capacity. |
Backend Storage Capacity | Backend storage capacity. |
Not displayed in UI | Internal attribute to aid searching Devices by IP address. |
Not displayed in UI | Internal attribute to aid searching Devices by name. |
Key | Globally unique key. |
Name | Primary name. |
Short Name | Short name. |
Description | Description of the element. |
URL | URL for information about the element. |
Business Continuity Critical | If true, element is critical to operation of the business. |
Supported by 3rd Party | True if the element is supported by a third party. |
Synonyms | Other names for the element. |
Storage System node relationships
The relationships of a Storage System node are as described in the following table:
UI name | Relationship | Description |
---|---|---|
Storage Pools |
| Pools for this StorageSystem. |
Storage Volumes |
| Volumes for this StorageSystem. |
Disk Drives |
| Disk drives for this StorageSystem. |
Storage Device |
| Storage device of this Storage System. |
Managed By |
| Software Instances that manage this Storage System. |
Managed By |
| NetworkDevices that manage this Storage System. |
Storage Processors |
| Storage Processors for this Storage System. |
File Systems |
| File Systems available on this storage. |
Failover Group |
| The group that this Storage system is part of. |
Not displayed in UI |
| A file attached to this element. |
Status |
| The lifecycle status of this element. |
Recovery Time |
| The recovery time specified for this element. |
Family |
| Family of this element. |
Organizational Unit |
| The Organizational Unit that this element belongs to. |
Location |
| Location of this element. |
Support Manager |
| The person or owner responsible for the support of this element. |
Business Owner |
| The person or owner responsible for this element from a business perspective. |
IT Owner |
| The person or owner responsible for this element from an IT perspective. |
Storage Volume Mirrors |
| Volume Mirrors for this StorageSystem. |
Managed By |
| Hosts that manage this Storage System. |
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