Discovery data collected for storage via a host
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Summary of Discovery Data Collected for Storage via a Host
Discovery collects information about storage units connected to Linux, Solaris, and Windows hosts through local I/O ports or Host Bus Adapters (HBAs). This capability allows customers to manage their storage infrastructure efficiently by mapping various storage components accurately.
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Key Features
- Probes for Various Systems: Discovery utilizes specific probes to gather data from different environments, including Linux, Solaris, and various versions of Windows.
- Data Mapping: The system maps storage references, connecting devices like disks, partitions, and HBAs to their respective hosts, enhancing visibility and control.
- Support for Multiple Protocols: Discovery supports multiple storage protocols such as Fibre Channel and iSCSI, providing flexibility in storage management.
- HBA Information Collection: Detailed data about host bus adapters, including their model IDs and WWNNs, is collected for both Linux and Windows systems.
Key Outcomes
By leveraging Discovery, ServiceNow customers can expect improved management of their storage assets, leading to:
- Enhanced visibility into storage configurations and their relationships to hosts.
- Efficient tracking and management of storage performance and capacity.
- Streamlined integration of storage resources within IT operations, ultimately supporting better decision-making.
Discovery gathers information about storage units that connect to Linux, Solaris, and Windows hosts via a local I/O port or Host Bus Adapter (HBA).
Probes used to discover storage from a host
| Table | Probes |
|---|---|
| Disk [cmdb_ci_disk] |
|
| Disk Partition [cmdb_ci_disk_partition] |
|
| Fibre Channel Disk [cmdb_ci_fc_disk] |
|
| Fibre Channel Port [cmdb_ci_fc_port] |
|
| File System [cmdb_ci_file_system] |
|
| iSCSI Disk [cmdb_ci_iscsi_disk] |
|
| NAS File System [cmdb_ci_nas_file_system] |
|
| Storage HBA [cmdb_ci_storage_hba] |
|
| Storage Pool [cmdb_ci_storage_pool] | Linux - Storage |
| Storage Pool Member [cmdb_ci_storage_pool_member] | Linux - Storage |
| VMware vCenter Datastore [cmdb_ci_vcenter_datastore] | VMware - vCenter Datastores |
Storage references discovered
Discovery maps these references for storage units that connect to a host via a local I/O
port or Host Bus Adapter (HBA).
| Table and column | Reference | Target data element |
|---|---|---|
| cmdb_ci_storage_device.computer | refers to the | cmdb_ci_computer |
| cmdb_ci_storage_device.provided_by | refers to the | cmdb_ci_fc_port (for FC only) |
| cmdb_ci_disk_partition.disk | is a partition of | cmdb_ci_disk |
| cmdb_ci_storage_hba.computer | is the | cmdb_ci_computer |
| cmdb_ci_fc_port.controller | contains the | cmdb_ci_storage_hba |
| cmdb_ci_fc_port.computer | is the same | cmdb_ci_computer as cmdb_ci_storage_hba.computer |
| cmdb_ci_storage_volume.computer | is the | cmdb_ci_computer |
| cmdb_ci_storage_volume.provided_by | is the | cmdb_ci_storage_pool or cmdb_ci_storage_pool or cmdb_ci_storage_device (providing storage) |
| cmdb_ci_storage_pool.hosted_by | is the | cmdb_ci_computer |
| cmdb_ci_computer | the pool is on | cmdb_ci_storage_pool.container |
| cmdb_ci_storage_pool.container | is the | cmdb_ci_storage_pool or cmdb_ci_storage_pool_member containing the pool (if the pool is present) |
| cmdb_ci_storage_pool_member.pool | is the | cmdb_ci_storage_pool |
| cmdb_ci_storge_pool_member.storage | is the | cmdb_ci_storage_pool, cmdb_ci_disk_partition or cmdb_ci_storage_device providing storage |
Data collected for HBAs on Linux and ESX servers
Discovery collects information on host bus adapters (HBA) for fiber channel enabled devices
connected to Linux and ESX servers.
| Label | Table | Field name | Source |
|---|---|---|---|
| Name | Storage HBA [cmdb_ci_storage_hba] | name |
|
| WWNN | Storage HBA [cmdb_ci_storage_hba] | wwnn |
|
| Model ID | Storage HBA [cmdb_ci_storage_hba] | model_id |
|
| Computer | Storage HBA [cmdb_ci_storage_hba] | computer |
|
| Label | Table | Field name | Source |
|---|---|---|---|
| WWPN | Fibre Channel Port [cmdb_ci_fc_port] | wwpn | VMWare - vCenter ESX Hosts Storage
|
| WWNN | Fibre Channel Port [cmdb_ci_fc_port] | wwnn |
|
| Port type | Fibre Channel Port [cmdb_ci_fc_port] | port_type |
|
| Speed | Fibre Channel Port [cmdb_ci_fc_port] | speed |
|
| Controller | Fibre Channel Port [cmdb_ci_fc_port] | controller |
|
| Computer | Fibre Channel Port [cmdb_ci_fc_port] | computer |
|
| Label | Table | Field name | Source |
|---|---|---|---|
| FC Disk | Fibre Channel Targets [cmdb_fc_target] | fc_disk |
|
| Created by | Fibre Channel Targets [cmdb_fc_target] | sys_created_by |
|
| Created | Fibre Channel Targets [cmdb_fc_target] | sys_created_on |
|
| SysID | Fibre Channel Targets [cmdb_fc_target] | sys_id |
|
| Updates | Fibre Channel Targets [cmdb_fc_target] | sys_mod_count |
|
| Updated by | Fibre Channel Targets [cmdb_fc_target] | sys_updated_by |
|
| Updated | Fibre Channel Targets [cmdb_fc_target] | sys_updated_on |
|
| WWNN | Fibre Channel Targets [cmdb_fc_target] | wwnn |
|
| WWPN | Fibre Channel Targets [cmdb_fc_target] | wwpn |
|
Data collected for HBAs on Solaris servers
Discovery on Solaris supports HBAs manufactured by:
- Emulex
- QLogic
Discovery populates these fields in the Storage HBA [cmdb_ci_storage_hba] table, using the
Solaris - Storage probe and sensor.
| Label | Field name |
|---|---|
| Name | name |
| Computer | computer |
| Device ID | device_id |
| Manufacturer | manufacturer |
| Model ID | model_id |
| Serial number | serial_number |
Discovery populates these fields in the Fibre Channel Port [cmdb_ci_fc_port] table.
| Label | Field name |
|---|---|
| Name | name |
| Computer | computer |
| Controller | controller |
| WWPN | wwpn |
| WWNN | wwnn |
| Port type | port_type |
| Speed | speed |
| Operational status | operational_status |
Discovery populates these fields in the Fibre Channel Disk [cmdb_ci_fc_disk] table.
| Label | Name |
|---|---|
| Name | name |
| Storage type | storage_type |
| Device interface | device_interface |
| Device LUN | device_lun |
Discovery populates these fields in the Fibre Channel Targets [cmdb_fc_target] table.
| Label | Name |
|---|---|
| FC Disk | fc_disk |
| WWNN | wwnn |
| WWPN | wwpn |
Data collected for HBAs on Windows servers
Discovery on Windows supports HBAs on any operating system.
| Label | Table | Field Name | Source |
|---|---|---|---|
| Name | Storage HBA [cmdb_ci_storage_hba] | name |
|
| WWNN | Storage HBA [cmdb_ci_storage_hba] | wwnn |
|
| Model ID | Storage HBA [cmdb_ci_storage_hba] | model_id |
|
| Computer | Storage HBA [cmdb_ci_storage_hba] | computer |
|
| Label | Table | Field Name | Source |
|---|---|---|---|
| WWPN | Fibre Channel Port [cmdb_ci_fc_port] | wwpn |
|
| WWNN | Fibre Channel Port [cmdb_ci_fc_port] | wwnn |
|
| Port type | Fibre Channel Port [cmdb_ci_fc_port] | port_type |
|
| Speed | Fibre Channel Port [cmdb_ci_fc_port] | speed |
|
| Controller | Fibre Channel Port [cmdb_ci_fc_port] | controller |
|
| Computer | Fibre Channel Port [cmdb_ci_fc_port] | computer |
|