/mcpfiles to up to three configured destinations, and tracks the delivery result for each destination. CAR accesses the CDR/CMR files in the directory structure that the CDR Repository Manager service creates. The high and low water mark settings that you configure specify percentages of the total disk space that are allocated for the CDR repository. Although the preserved folder under the CDR repository folder contributes to the high and low water mark percentages, Log Partition Monitoring never deletes the folder if the high water mark gets reached. If the high water mark gets reached, the CDR Repository Manager deletes processed CDR files until the low water mark is reached or all processed files are deleted, whichever comes first. If all processed CDR files are deleted but the low water mark has not been reached, the deletion stops. The CDRHighWaterMarkExceeded alarm gets generated until the system reaches the maximum disk allocation. If the maximum disk allocation gets reached, the system deletes undelivered files, and files within the preservation duration, starting with the oldest files, until disk utilization falls below the high water mark. If you receive the CDRMaximumDiskSpaceExceeded alarm repeatedly for this scenario, either increase the disk allocation or lower the number of preservation days. When the disk allocation usage exceeds the configured high water mark threshold value, LMP also purges the CDR and CMR data that are exported at the following path automatically: /var/log/active/tomcat/logs/car/carreports/reports/ondemand/temp. Customers or any third-party applications should ensure to retrieve the exported files immediately to avoid losing their buffered historical data. Note Information on these alarms is found in the CDR Repository Alarm Catalog (CDRRepAlarmCatalog). The following table displays the alarms and alerts in this catalog. To configure these alarms, go to Cisco Unified Serviceability > Alarm > Configuration > CDR Services. Table 80: CDR Repository Alarm Catalog Description Severity Name SFTP delivery of CDR files to the outside billing server failed. ERROR_ALARM CDRFileDeliveryFailed The CDR Agent cannot send CDR files from the Cisco Unified CM node to the CDR Repository node within the Unified Communications Manager cluster. ERROR_ALARM CDRAgentSendFileFailed The high water mark (HWM) for CDR files was reached; some successfully delivered CDR files have been deleted. WARNING_ALARM CDRHWMExceeded The CDR files disk usage exceeded the maximum disk allocation. Some undelivered files may have been deleted to bring disk usage down. CRITICAL_ALARM CDRMaximumDiskSpaceExceeded SFTP delivery of CDR files failed on retries. ERROR_ALARM CDRFileDeliveryFailureContinues Call Reporting and Billing Administration Guide for Cisco Unified Communications Manager, Release 15 and SUs 181 CDR Analysis and Reporting CDR Data