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Discovery release notes

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Discovery release notes

Discovery product enhancements and updates in the Geneva release.

Activation information

Discovery is available as a separate subscription from the rest of the ServiceNow platform and requires the Discovery plugin.

New in the Geneva release

Discovery identifiers Discovery identifiers are replaced for new instances with identifiers from the CMDB Identification and Reconciliation framework designed to reduce the occurrence of duplicate CIs. Discoveries in upgraded instances continue to work properly with the legacy identifiers. A property allows you to require CMDB identifier rules for all discoveries in upgraded instances. When Service Mapping is active on your instance, the new identifiers are always used, regardless of the property value.
Storage Discovery for Geneva includes these storage enhancements:
  • VMware datastore relationships: Discovery establishes the relationships between a datastore, the disks attached to the datastore, and the ESX server that hosts the virtual machines using that datastore.
  • Normalized storage relationships: A Provides::Provided by relationship was created between an upstream storage device and the downstream file system.
  • QLogic HBAs: Discovery on Linux collects information for host bus adapters (HBA) manufactured by QLogic.
  • Veritas volume manager: Discovery collects disk and volume information for Veritas Volume Manager on Linux hosts and maps file systems mounted on Veritas volumes to the upstream storage provider.
  • NAS path resolution: Discovery supports domain name resolution for the host names returned from NAS paths.
  • Windows 2012 Fibre Channel (FC): Discovery supports the host configuration of NAS with FC on Windows Server 2012.
  • HBAs on Solaris: Discovery collects HBA information for FC enabled devices connected to Solaris servers.
Configuration console The Discovery configuration console allows you to choose which data is discovered and populated in the CMDB. The console allows you to configure data for devices, applications, and software.
Troubleshooting Procedures were created and documented for troubleshooting these Discovery errors:
  • XML Parse Problem
  • Probe not found
  • No XML data
Citrix Netscaler Discovery Discovery uses new SNMP probes to discover Citrix Netscaler load balancers. Netscaler data is contained in the Citrix Netscalers [cmdb_ci_lb_netscaler] table, a new extension of the Load Balancer [cmdb_ci_lb] table.
A10 Load Balancer Discovery identifies and classifies information about A10 load balancers.
Layer 2 Discovery Discovery can collect data for network devices by examining the contents of routing tables on other connected devices. Address Resolution Protocol (ARP) probes and SNMP switch bridging probes collect this neighbor data, which Discovery then resolves to interfaces on previously undiscovered devices.

Changed in the Geneva release

  • The cmdb_ci_san_disk.wwn table is deprecated: The World Wide Node (WWN) information contained in the cmdb_ci_san_disk.wwn table did not support the discovery of multiple ports related to a single WWN on the storage server. A new table called Fibre Channel Targt [cmdb_fc_target] replaces the cmdb_ci_san_disk.wwn table and supports multi-path connections with these new fields:
    • WWNN
    • WWPN
    • FC Disk
  • SNMP GETBULK probe parameter: A new parameter enables the use of SNMP GETBULK requests to retrieve large amounts of tabular data from SNMP devices instead of using multiple SNMP GETNEXT requests.
  • Auto-generated process classifiers deprecated: Automatically generated process classifiers for application dependency mapping are deprecated. The system properties that controlled the creation of these classifiers, glide.discovery.auto_adm and glide.discovery.adm.map_local_connection, are no longer available for new or upgraded instances on the Geneva release.