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When does ACS Purge Happen?

Hello All

 

I have a Cisco ACS 5.4 device with incremental backup turned OFF. Meaning database purging will take place at the last day of the month.

Last month purge did not take place, there was no alert or error message.

My lower limit for purging is set as 81 GB, the current opt size is 71 GB. Is this why purge did not take place? Does ACS require that the lower limit be reached? If this is the case will ACS wait until the last day of the month or will it purge the data immediately?

Thanks for your help in advance!

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Cisco Employee

 The following database

 

The following database limitations apply for purging:For Example

If the database disk usage is greater than 114 GB (95% of the total database size of 120 GB), an alarm is sent to the dashboard.

If the database disk usage is greater than 120 GB (100% of the total database size of 120 GB), a backup is run immediately followed by a purge until the database disk usage is below 120 GB. If the backup fails, check the database disk usage again.

If the database disk usage is greater than 120 GB, but less than 150 GB (125% of the total database size of 120 GB), the Monitoring & Report Viewer decides to wait.

If the backup fails and the database disk usage is greater than 150 GB, a purge occurs regardless of whether or not a backup has occurred until the database disk usage is below 120 GB.

For example, if you specify to preserve 5 months of data, but the database size is over 120 GB, a purge occurs. If the database size remains over 120 GB after the purge, an additional month of data is purged, which results in 4 months of data preserved. Before the purge, the database is backed up.

If the database size is over 150 GB, a purge occurs regardless of whether or not a database backup has occurred. If the database size remains over 120 GB, additional purges occur until the database is 120 GB or less.

Note Database purge fails if we do not configure the repository and the incremental backup is set to OFF.

Note When incremental backup is disabled, data is purged at the end of every month.

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