CIS-Discovery: Certified Implementation Specialist - Discovery

Pattern operations are the building blocks of patterns that define the logic and actions to perform on the target CIs. Some pattern operations query targets to retrieve information or execute commands, while others manipulate data or perform other tasks. WMI Query and Get Process are examples of pattern operations that query targets. WMI Query executes a Windows Management Instrumentation (WMI) query on a Windows target and stores the results in a variable.Get Process executes a command to list the processes running on a target and stores the results in a variable12.

Pattern operations - Product Documentation: Vancouver - ServiceNow

Pattern operations - Product Documentation: San Diego - Now Support Portal

CI reclassification is the process of changing the class of a CI in the CMDB based on the discovery data. It can be done manually or automatically, depending on the configuration settings. CI reclassification can result in data loss if the new class has fewer or different attributes than the original class, and the existing attribute values are not preserved or mapped to the new class. This can happen when a CI is switched to a different class hierarchy, such as from a Linux Server to a Windows Server, or when a CI is downgraded to a less specific class, such as from a Database to a Software Instance. Therefore, switching and downgrading have a higher chance of leading to lost data during CI reclassification.

CI reclassification

Reclassify CIs

Configure automatic CI reclassification

To launch any pattern, you need to specify the CI classification and the CI type. The CI classification determines the table where the discovered CI is stored in the CMDB, and the CI type defines the specific attributes and relationships of the CI. For example, if you want to discover a Windows server, you need to select the CI classification ascmdb_ci_win_serverand the CI type asWindows Server. These choices are mandatory for any pattern, as they enable Discovery to identify and classify the CIs correctly.

TheShazzam Batch Sizeproperty determines how many IP addresses are scanned by a single Shazzam probe1. If this value is set to 1000 and a discovery must scan 10,000 IP addresses using a single MID Server, it creates 10 Shazzam probes with each probe scanning 1000 IP addresses.This property can be configured in theDiscovery Propertiesmodule underDiscovery Definition2.

Discovery finds and maps dependencies for the following types of storage devices:Direct-attached storage (DAS),network-attached storage (NAS), orstorage area network (SAN)1.NAS or SAN storage that is discovered via a Storage Management Initiative Specification (SMI-S) and Common Information Model (CIM) is also supported2.Discovery collects information about storage area networks from specialized devices, such as storage arrays and Fibre Channel (FC) switches, and creates specific references between the tables in the SAN3. Discovery does not support Multiple area network (MAN) or Redundant Array of Independent Disks (RAID) as types of storage devices.

1:Storage device discovery

2:Storage Discovery via SMI-S and CIM

3:Discovery of storage area networks (SAN)