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31-4
Cisco Unified Communications Manager CDR Analysis and Reporting Administration Guide
OL-24541-01
Chapter 31 Configuring the CAR System Database
Related Topics
Note When the 2M or HWM limit is breached:
1. CAR deletes the database partitions one by one, starting from the oldest date partition.
2. CAR stops purging under one of the following conditions:
• When the record count falls below the 2M or HWM limit.
• When there is only last two days partitions left on the billing tables.
In cases where there are large number of CDRs present in the billing tables and deleting the partitions
does not bring the record count below the 2M or HWM limit, CAR holds at least two days data in the
database.
When the record count in the database reaches the 2M or HWM limit:
1. CAR loader stops processing the new records.
2. CAR starts purging the records from the oldest partition till the record count reaches 2M or HWM
limit.
If the record count does not fall below the 2M or HWM limit even after deleting the records, CAR holds
at least two days records and stops the CAR loader. Also, CAR sends an e-mail notification to CAR
administrator to proceed with manual purge.
Additional Information
See the “Related Topics” section on page 31-4.
Related Topics
• CDR Analysis and Reporting Configuration Checklist, page 2-1
• Chapter 29, “Configuring CAR System Parameters”
• Chapter 30, “Configuring the CAR System Scheduler”
• Chapter 32, “Generating the CAR System Event Log”
Additional Cisco Documentation
• Cisco Unified Communications Operating System Administration Guide
• Cisco Unified Serviceability Administration Guide
• Cisco Unified Communications Manager Call Detail Records Administration Guide