--- sourceDocument: Australia IT Operations Management sourceDocumentLink: https://www.servicenow.com/docs/r/australia/it-operations-management Release : - australia ft:locale : - en-US ft:publication_title : - Australia IT Operations Management ft:clusterId : - itom bundleId : - itom workflow : - Technology --- # AWS Windows Server # AWS Windows Server pattern-based discovery {#ariaid-title1} Release version: Australia Updated August 11, 2026 ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 2 minutes to read Summarize ![AI sparkle icon](https://servicenow.com/docs/portal-asset/ai-sparkle-icon) Summarized using AI This content was generated using new OpenAI-powered functionality. Results are provided on an as is basis and are not guaranteed to be accurate or complete. ## Summary of AWS Windows Server pattern-based discovery The AWS Windows Server pattern-based discovery enables ServiceNow customers to identify and populate Windows Server configuration items (CIs) within their AWS cloud environment. This discovery process uses the Amazon AWS - Windows Server (LP) pattern, which integrates with AWS Systems Manager (SSM) and collects detailed instance data to update the ServiceNow Configuration Management Database (CMDB). Show full answer Show less ## Key Features * **Pattern-based discovery:** Automatically detects Windows Server CIs on AWS EC2 instances using the latest Discovery and Service Mapping Patterns application. * **AWS prerequisites:** Requires AWS SSM to be enabled on EC2 instances and the SSM Agent to run as SYSTEM to retrieve BIOS serial numbers essential for CI creation. * **Configurable CI creation:** The system property `snitompattern.awsclouddiscoverypopulateserverci` must be set to true to enable Windows Server CI creation during AWS cloud discovery. * **Support for AWS GovCloud:** Discovery schedules must be configured with datacenter URLs to support AWS GovCloud (US) accounts. ## Data Collected and CMDB Population The discovery pattern collects and populates the following key fields for Windows Server CIs (`cmdbciwinserver`): * Hostname (with optional domain suffix removal) * EC2 instance ID (used as Object ID and Correlation ID) * BIOS serial number * IP address * CPU core count and CPU count (defaulted to 1) * RAM in megabytes * Operating system (set to Windows) * Virtualization status (set to true) * Install and operational status (defaulted to Installed and Operational) The BIOS serial number is also stored separately in the `cmdbserialnumber` table, with flags indicating its validity and type. ## CI Relationships and References * The pattern establishes a virtualization relationship between Windows Server CIs and their associated virtual machine instances (`cmdbcivminstance`), linking "Virtualized by" and "Virtualizes" relationships. * Serial number records reference the Windows Server CI to maintain accurate traceability of hardware identifiers. ## Practical Considerations for ServiceNow Customers * Ensure AWS SSM is enabled and the SSM Agent has SYSTEM-level execution rights to allow full discovery capability. * Update to the latest Discovery and Service Mapping Patterns application from the ServiceNow Store to access this pattern. * Set the required system property to enable Windows Server CI creation during AWS discovery. * Configure discovery schedules appropriately, especially when working with AWS GovCloud. * Use the populated CMDB data and relationships to gain a comprehensive and accurate view of your AWS Windows Server assets and their virtualization context. Discovery and Service Mapping Patterns finds AWS Windows Server configuration items (CIs) in your cloud environment. Discovering some of these resources might require updating to the latest version of the Discovery and Service Mapping Patterns application from the ServiceNow Store. ## Pattern-based discovery and mapping requirements {#aws-windows-server-pattern__section_rpj_fj2_bgc} Verify the AWS discovery prerequisites : For more information, see the prerequisites section in [AWS discovery using patterns](https://www.servicenow.com/docs/NFaTlkGaSxMWb2bQPsCnCA "Discovery and Service Mapping Patterns uses patterns to discover components of the Amazon AWS Cloud deployment during horizontal discovery. Discovering some of these resources might require updating to the latest version of the Discovery and Service Mapping Patterns application from the ServiceNow Store."). Verify that AWS SSM is enabled : Verify that AWS Systems Manager (AWS SSM) is enabled on the Amazon Elastic Compute Cloud (Amazon EC2) instances. Enable Windows Server CI creation : Set the sn_itom_pattern.aws_cloud_discovery_populate_server_ci system property to true. For more information, see [Configure Server CI creation during AWS cloud discovery](https://www.servicenow.com/docs/TAwA5~6rxh7OQ4~LjkQsAg "Create Windows Server or Linux Server configuration items (CIs) during AWS cloud discovery by enabling the sn_itom_pattern.aws_cloud_discovery_populate_server_ci system property."). Verify SSM Agent execution context : The SSM Agent must run as SYSTEM to retrieve the serial number using `Get-CimInstance Win32_BIOS`. If your security policy restricts the SSM Agent to a non-SYSTEM user, the pattern can't create a Server CI for that instance. 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](https://www.servicenow.com/docs/vpueuFRHMWLNi6dzsJv94A "Create AWS service accounts on the ServiceNow AI Platform to access your AWS account during AWS discovery."). ## Data collected by Discovery during horizontal discovery {#aws-windows-server-pattern__section_ggp_ql2_bgc} Discovery populates the data in the CMDB when running the Amazon AWS - Windows Server (LP) pattern. {#aws-windows-server-pattern__table_win_server_main__entry__2} | Field | Description | |-|-| | Name \[name\] | OS-level hostname of the EC2 instance. If the glide.discovery.hostname.include_domain property is set to false, the domain suffix is removed and only the short hostname is stored. | | Object ID \[object_id\] | The EC2 instance ID. | | Correlation ID \[correlation_id\] | The EC2 instance ID. | | Serial number \[serial_number\] | BIOS serial number of the EC2 instance. | | IP Address \[ip_address\] | IP address of the EC2 instance. | | CPU core count \[cpu_core_count\] | Number of vCPUs available to the EC2 instance. | | CPU count \[cpu_count\] | CPU count. The value is set to 1. | | RAM (MB) \[ram\] | Amount of memory available to the EC2 instance, in megabytes (MB). | | Operating System \[os\] | Operating system of the server. The value is set to Windows. | | Is Virtual \[virtual\] | Indicates that the server is a virtual machine. The value is set to true. | | Install Status \[install_status\] | Install status of the resource. The value is set to Installed. | | Operational status \[operational_status\] | Operational status of the resource. The value is set to Operational. | [Table 1. Windows Server \[cmdb_ci_win_server\]] {#aws-windows-server-pattern__table_win_server_main} {#aws-windows-server-pattern__table_win_serial_number__entry__2} | Field | Description | |-|-| | Serial number \[serial_number\] | BIOS serial number of the EC2 instance. | | Serial number type \[serial_number_type\] | Type of serial number. The value is set to bios. | | Valid \[valid\] | Indicates that the serial number is active and valid. The value is set to true. | | Configuration item \[cmdb_ci\] | References the Windows Server \[cmdb_ci_win_server\] table. | [Table 2. Serial Number \[cmdb_serial_number\]] {#aws-windows-server-pattern__table_win_serial_number} ## CI relationships and references {#aws-windows-server-pattern__section_dc4_ghc_dgc} The Amazon AWS - Windows Server (LP) pattern creates the following relationships and references to support AWS Windows Server discovery. References link to records in other tables and don't appear in the CI Relationship \[cmdb_rel_ci\] table. {#aws-windows-server-pattern__table_win_relationships__entry__3} | CI | Relationship | CI | |-|-|-| | Windows Server \[cmdb_ci_win_server\] | Virtualized by::Virtualizes | Virtual Machine Instance \[cmdb_ci_vm_instance\] | [Table 3. CI relationships] {#aws-windows-server-pattern__table_win_relationships} {#aws-windows-server-pattern__table_win_ci_references__entry__3} | CI | Field | Referenced CI | |-|-|-| | Serial Number \[cmdb_serial_number\] | Configuration item \[cmdb_ci\] | Windows Server \[cmdb_ci_win_server\] | [Table 4. CI references] {#aws-windows-server-pattern__table_win_ci_references}