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.

Request apps on the Store

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

Table 1. Storage Server [cmdb_ci_storage_server]
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
Table 2. Disk [cmdb_ci_disk]
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.

Figure 1. Cloudian Probe
Cloudian Probe.

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.

Classification Criteria
Figure 2. Classification Criteria
Classification Criteria.

CMDB Data Model

Figure 3. CMDB Data Model
CMDB Data Model.
Storage Server to Network Adapter
Figure 4. Storage Server to Network Adapter
Storage Server to Network Adapter.
Storage Server to Disks
Figure 5. Storage Server to Disks
Storage Server to Disks.
Storage Server to Disks and File Systems
Figure 6. Storage Server to Disks and File Systems
Storage Server to Disks and File Systems.

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