The Survivable CDR feature on the main, Survivable Remote Server, or Survivable Core Server automatically removes the oldest CDR data achieve file anytime the number of archived files exceed 20. The Current CDR file is not an archived file on the hard disk and, therefore, cannot be counted in the 20 files.
CDR adjunct
In a normal operating environment, the CDR adjunct has the responsibility to delete the CDR data files after they are copied and verified that they are correct.
