Amazon ElastiCache Snapshot pattern-based discovery

  • Release version: Xanadu
  • Updated June 16, 2026
  • 2 minutes to read
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    Summary of Amazon ElastiCache Snapshot pattern-based discovery

    The Amazon ElastiCache Snapshot pattern-based discovery, part of the Discovery and Service Mapping Patterns application, enables ServiceNow customers to discover and map Amazon ElastiCache snapshot resources within their AWS cloud environment. This process supports accurate population of both CMDB and non-CMDB tables with detailed snapshot data, helping maintain up-to-date asset and configuration information.

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    Key Features

    • Pattern Activation: The ElastiCache Snapshot discovery pattern is disabled by default. Starting from Visibility Content version 6.28.0, enabling or disabling patterns does not count as customization, ensuring seamless updates and resets to the latest predefined version after upgrades while preserving the last active state.
    • AWS Discovery Prerequisites: Customers must verify AWS discovery prerequisites and ensure relevant resources are not listed in the Resource Inclusion List table to avoid duplicate discovery.
    • Support for AWS GovCloud: Discovery of AWS GovCloud (US) accounts requires using a datacenter URL when configuring AWS service accounts.
    • Data Population: The discovery pattern populates snapshot data in:
      • Non-CMDB tables: Includes detailed snapshot attributes and can be reviewed via the AWS configuration section.
      • CMDB tables: Stores snapshot and related cloud resource information, including statuses and resource types.
    • CI Relationships: The pattern automatically creates relationships between ElastiCache snapshots, AWS datacenters, and cloud resource entries to support comprehensive configuration management.
    • Tag Discovery: AWS tags related to the snapshots are collected and stored in the Key Value table, enabling enhanced resource categorization and management.

    Key Data Attributes Captured

    • In the AWS ElastiCache Snapshot table: Unique ARN identifier, snapshot name, status, cache cluster ID, engine type and version, and reference to the cloud resource CI.
    • In the Cloud Resource CMDB table: ARN, name, resource type (set as AWS::ElastiCache::Snapshot), install status (default Installed), and operational status (default Operational).
    • Tags: Key-value pairs representing AWS tags to facilitate resource tracking and categorization.

    Practical Benefits for ServiceNow Customers

    By leveraging this pattern, customers can automate the discovery of ElastiCache snapshots, maintain accurate and current configuration data within the CMDB, and establish important relationships between snapshots and their AWS environment. This enables better visibility, management, and governance of AWS caching resources directly within ServiceNow.

    Discovery and Service Mapping Patterns finds AWS services on your cloud environment. Discovering some of these resources may require updating to the latest version of the Discovery and Service Mapping Patterns application from the ServiceNow Store.

    Pattern-based discovery and mapping requirements

    Verify the AWS discovery prerequisites
    For more information, see the prerequisites section in Amazon AWS Cloud components discovery using patterns.
    Remove resources from the Resource Inclusion List table
    Verify that the relevant resource isn't listed in the Resource Inclusion List [sa_cloud_inventory_resource_whitelist] table to avoid duplicate discovery. For more information on removing resources from the Resource Inclusion List, see Amazon Web Services (AWS) Resource Inventory.
    Enable the relevant pattern
    The pattern for this service is disabled by default. Starting with Visibility Content version 6.28.0, activating or deactivating a pattern won't be considered a customization, and it will continue to receive updates. Patterns that were previously activated or deactivated will reset to the latest predefined version after upgrading while retaining the last active field value. For more information on enabling patterns, see Activate a disabled pattern.
    Configure the Discovery schedule to support GovCloud
    Discovering AWS GovCloud (US) accounts requires using a datacenter URL when setting up an AWS service account. For more information, see Create AWS service accounts.

    Discovery and Service Mapping Patterns application populates data in both CMDB and non-CMDB tables.

    Data stored in non-CMDB tables

    Discovery and Service Mapping Patterns application populates data in the non-CMDB table when running the Amazon AWS - ElastiCache Snapshot - Extended Inventory (LP) pattern.

    You can review the non-CMDB AWS tables by navigating to All > Configuration > AWS. You can also search the navigation filter for the specific pattern name.

    Table 1. AWS ElastiCache - Snapshot [cmdb_aws_elasticache_snapshot]
    Field Description
    Object Id [object_id] The Amazon Resource Name (ARN) uniquely identifying the ElastiCache snapshot.
    Name [name] The name of the snapshot.
    Status [status] The current status of the snapshot.
    Cache Cluster ID [cache_cluster_id] The identifier of the cache cluster from which the snapshot was taken.
    Configuration Item [configuration_item] References the Cloud Resource [cmdb_ci_cmp_resource] table.
    Engine [engine] The type of caching engine used. For example: Redis or Memcached.
    Engine Version [engine_version] The version of the cache engine used for the snapshot.

    Data stored in CMDB tables

    Discovery and Service Mapping Patterns application populates data in the CMDB when running the Amazon AWS - ElastiCache Snapshot - Extended Inventory (LP) pattern.

    Table 2. Cloud Resource [cmdb_ci_cmp_resource]
    Field Description
    Object ID [object_id] The ARN uniquely identifying the ElastiCache snapshot.
    Name [name] The name of the snapshot.
    Resource type [resource_type] Type of resource. The value is set to AWS::ElastiCache::Snapshot.
    Install Status [install_status] Install status of the resource. Default value is Installed.
    Operational status [operational_status] Operational status of the resource. Default value is Operational.

    CI relationships

    The Amazon AWS - ElastiCache Snapshot - Extended Inventory (LP) pattern creates these relationships to support Amazon ElastiCache Snapshot discovery.

    CI Relationship CI
    Cloud Resource [cmdb_ci_cmp_resource] Hosted on::Hosts AWS Datacenter [cmdb_ci_aws_datacenter]
    AWS ElastiCache - Snapshot [cmdb_aws_elasticache_snapshot] References Cloud Resource [cmdb_ci_cmp_resource]

    AWS tag discovery

    The pattern collects tags and populates them in the Key Value [cmdb_key_value] table.
    Table 3. Key Value [cmdb_key_value]
    Field Description
    Key [key] Tag name.
    Value [value] Tag value.