Cloudian Storage Discovery
Summarize
Summary of Cloudian Storage Discovery
ServiceNow Discovery leverages the Cloudian Storage discovery pattern to identify Cloudian servers and related storage components within your environment. This capability requires installing specific applications from the ServiceNow Store, including the Patterns application, Discovery and Service Mapping Patterns, and CMDB CI Class Models plugins. These patterns support discovery on the ServiceNow AI Platform starting with the Paris release or later.
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Cloudian provides software-defined, S3-compatible object storage solutions deployed on CentOS or RHEL servers. Cloudian Hyperstore is the software installed on hardware servers, virtual machines, or pre-installed appliances called Hyperstore Nodes.
Prerequisites
- The target device must respond to the
/bin/systemctl status cloudian-s3command indicating it is a Cloudian HyperStore Storage System. Otherwise, it will be discovered as a generic Linux server. - Configure SSH credentials specific to the Cloudian Storage Server, ensuring the MID server can access the device.
- The Discovery user must have appropriate privileges to execute necessary commands on the target.
- Install required plugins: CMDB CI Class Models (version 1.31.0 or later) and Discovery and Service Mapping Patterns (version 1.0.84 or later).
Credentials
Use SSH credentials similar to those configured for Linux servers, as Cloudian Hyperstore software is deployed on CentOS or RHEL platforms.
Running Discovery
Create a Discovery schedule targeting the Cloudian Storage Server’s IP address with the correctly configured SSH credentials. The Cloudian probe runs the /bin/systemctl status cloudian-s3 command to verify the presence of the Cloudian HyperStore Storage System.
Data Collected During Discovery
Discovery populates details across several CMDB tables to provide a comprehensive view of the Cloudian Storage environment:
- Storage Server [cmdbcistorageserver]: Includes name, serial number, IP address, manufacturer, model, OS version, CPU details, and memory.
- Disk [cmdbcidisk]: Captures device ID, storage type, size, manufacturer, model, and association to the storage server.
- File System [cmdbcifilesystem]: Records file system name, size, free space, mount point, and relations to disks and storage servers.
- Network Adapter [cmdbcinetworkadapter]: Contains network interface details like IP, netmask, MAC address, and links to storage servers.
- IP Address [cmdbciipaddress]: Stores IP addresses and netmask tied to network adapters.
Classification and CMDB Modeling
The Cloudian probe is part of the Unix-Classify Multiprobe process and runs prior to the Linux classifier. Successful classification creates records in the cmdbcistorageserver table and triggers the Cloudian Storage System Pattern, ensuring accurate CMDB representation.
The data model and relationships reflect key associations such as:
- Storage servers owning network adapters and IP addresses.
- Storage servers containing disks and file systems.
- Storage servers virtualizing VM instances.
- Disks providing file systems.
What This Enables for ServiceNow Customers
By implementing Cloudian Storage Discovery, ServiceNow customers gain automated and accurate identification of Cloudian storage infrastructure, including servers, disks, file systems, and network components. This comprehensive discovery enhances CMDB accuracy, supports service mapping, and improves operational visibility and management of Cloudian storage environments.
ServiceNow Discovery uses the Cloudian Storage discovery pattern to find Cloudian servers and related disks. Discovering these resources requires installing the Patterns application from the ServiceNow Store.
Discovery uses Cloudian Storage System patterns to find Cloudian Storage system data. Discovering these resources requires installing the Discovery and Service Mapping Patterns and the CMDB CI Class Models applications from the ServiceNow Store, as each application is dependent on the other. You can use the patterns for discovering the Cloudian Storage components on the ServiceNow AI Platform using the Paris release or later.
Cloudian is a software-defined data storage company. Cloudian provides turnkey distributed software-defined S3-compatible object storage solutions.
Cloudian Hyperstore Software : Deploy the CentOS operating system, related packages, and Hyperstore software binary files on the Hyperstore Node.
Cloudian Hyperstore Node: This is an independent hardware server in which Cloudian Hyperstore software is deployed on an industry standard server, on a VM, or it is pre-installed on a Cloudian Hyperstore appliance.
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Visit the ServiceNow Store website to view all the available apps and for information about submitting requests to the store. For cumulative release notes information for all released apps, see the ServiceNow Store version history release notes.
Prerequisites
To discover a device as a Cloudian server, the /bin/systemctl status cloudian-s3 command must return valid responses and contain the Cloudian HyperStore Storage System. If this is not the case, then the device is discovered as a Linux server.
- Make sure the client is using Discovery patterns.
- Set SSH credentials for the Cloudian Storage Server.
- Make sure the MID server has access to the target device.
- Ensure that the Discovery user has the correct privileges to run commands.
- Install the following plugins:
- CMDB CI Class Models plugin (Version 1.31.0 or later)
- Discovery and Service Mapping Patterns plugin (Version 1.0.84 or later)
- Discovery and Service Mapping Patterns: (sn_itom_pattern) version 1.0.84 and dependent plugin CMDB CI Class Models (sn_cmdb_ci_class) version 1.31.0 (October content release)
Credentials
Make sure the Cloudian Hyperstore Software is deployed on either CentOS or RHEL Servers. The credentials configurations are the same as for a Linux server.
Configure the SSH credentials for the Cloudian Storage Server.
Running Discovery
To discover the Cloudian Storage System, create a Discovery schedule that targets the IP address of the Cloudian Storage Server. Make sure that the SSH credentials that you configured can access the Cloudian Server.
Data collected by Discovery during horizontal discovery
| Field | Description |
|---|---|
name |
|
| serial_number | |
| ip_address | |
manufacturer |
|
| model_id | |
| short_description | |
| os_version | |
| os | |
| ram | |
| cpu_manufacturer | |
| cpu_name | |
| cpu_core_count | |
| cpu_type |
| Field | Description |
|---|---|
name |
|
| device_id | |
| storage_type | |
| size_bytes | |
| manufacturer | |
| model_id | |
| computer [Reference cmdb_ci_storage_server] |
File System [cmdb_ci_file_system]
| Field | Description |
|---|---|
name |
|
| size_bytes | |
| free_space_bytes | |
| file_system | |
| mount_point | |
| computer [Reference cmdb_ci_storage_server] | |
| provided_by [Reference cmdb_ci_disk] |
Network Adapter [cmdb_ci_network_adapter]
| Field | Description |
|---|---|
name |
|
| ip_address | |
| netmask | |
| mac_address | |
| cmdb_ci [Reference cmdb_ci_storage_server] |
IP Address [cmdb_ci_ip_address]
| Field | Description |
|---|---|
ip_address |
|
| netmask | |
| nic [Reference cmdb_ci_network_adapter] |
The Cloudianprobe is created in the Unix-Classify Multiprobe. The Cloudian probe runs the /bin/systemctl status cloudian-s3 command and checks that the output contains Cloudian HyperStore Storage System.
In Unix classification, the Cloudian Server classifier runs before the Linux Classifier. The Cloudian classifier creates records in the [cmdb_ci_storage_server] table. This classifier invokes the Cloudian Storage System Pattern.
CMDB Data Model
CI Relationships
Relationships created by the Cloudian Storage pattern
| Parent | Relationship | Child |
|---|---|---|
| cmdb_ci_storage_server | Owns::Owned by | cmdb_ci_network_adapter |
| cmdb_ci_storage_server | Owns::Owned by | cmdb_ci_ip_address |
| cmdb_ci_storage_server | Contains::Contained by | cmdb_ci_disk |
| cmdb_ci_storage_server | Contains::Contained by | cmdb_ci_file_system |
| cmdb_ci_storage_server | Virtualized by::Virtualizes | cmdb_ci_vm_instance |
| cmdb_ci_disk | Provides::Provided by | cmdb_ci_file_system |