{"revision":"c10276e953456835cdbb1f3a60d58ae1980be353","document":{"id":28651,"path":"it-operations-management/agent-client-collector/acc-instance-scan-checks.md","title":"Agent Client Collector health instance scan checks","bundle":null,"doc_type":null,"release":"australia","body":"\n# Agent Client Collector health instance scan checks\n\nThe Agent Client Collector \\(ACC\\) health instance scan suite includes checks that detect anomalies and issues on your instance. Use this reference to identify what each check does and when it applies.\n\n<table id=\"table_acc_scan_checks\"><thead><tr><th>\n\nCheck name\n\n</th><th>\n\nDescription\n\n</th></tr></thead><tbody><tr><td>\n\nACC duplicate agent for host CI\n\n</td><td>\n\nIdentifies configuration items \\(CIs\\) associated with multiple active agents, indicating potential issues with CI identification.\n\n</td></tr><tr><td>\n\nACC Error Framework\n\n</td><td>\n\nVerifies whether the ACCErrorManager has been created, which enables associating errors to the relevant ACC scoped app.This check detects whether an automation source application, automation error category, and automation error code exist for the Agent Client Collector Framework application.\n\n</td></tr><tr><td>\n\nACC find modified script includes\n\n</td><td>\n\nDetects modified Agent Client Collector Framework script includes that might have been altered post-upgrade.Requires importing the `global.ACCInstanceScanUtil` for instances associated with the Xanadu release or earlier.\n\n</td></tr><tr><td>\n\nACC skipped upgrades\n\n</td><td>\n\nReports upgrades that were skipped since the last upgrade.Requires importing the `global.ACCInstanceScanUtil` for instances associated with the Xanadu release or earlier.\n\n</td></tr><tr><td>\n\nACC verify plugin folder hierarchy\n\n</td><td>\n\nValidates the correct creation of ACC Plugin folders and flags duplicate folders that may cause synchronization issues.\n\n</td></tr><tr><td>\n\nACC active policies count\n\n</td><td>\n\nCounts the number of active published policies. If the number exceeds 300, the check recommends policy consolidation to improve performance.\n\n</td></tr><tr><td>\n\nACC agent to MID Connection\n\n</td><td>\n\nVerifies the connection of 1000 agents per 1-GB Java Virtual Machine \\(JVM\\) to confirm the MID Server isn't overloaded. If overloaded, configure additional JVMs or redistribute agents to other MID Servers.\n\n</td></tr><tr><td>\n\nACC verify sn\\_agent CI counts match\n\n</td><td>\n\nConfirms that the records in the sn\\_agent\\_ci\\_extended\\_info and sn\\_agent\\_cmdb\\_ci\\_agent tables match, verifying data consistency for agents.\n\n</td></tr></tbody>\n</table>## Additional information\n\nFor details on importing the `global.ACCInstanceScanUtil` script include, see the [Script Include ACCInstanceScanUtil \\[KB1630132\\]](https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB1630132) article in the HI Knowledge Base.\n\nFor details on instance scans, see [Instance Scan](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/platform-administration/hs-landing-page.md).\n\nFor details on executing the Agent Client Collector health instance scan suite, see [Execute a suite scan](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/platform-administration/hc-execute-suite-scan.md).\n\n**Parent Topic:**[Agent Client Collector Framework reference](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/it-operations-management/agent-client-collector/agent-client-collector-reference.md)\n\n"}}