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Physical size of ACS db is more than 50% of its Actual Size. (ACS Version :

Since the Migration to ACS we keep seeing the following message in the alarm inbox


Cisco Secure ACS Alarm (CRITICAL): Physical size of ACS db is more than 50% of its Actual Size.


Cisco Secure ACS - Alarm Notification

Severity: Critical



Alarm Name

System Alarm [Database Purging]


Physical size of ACS db is more than 50% of its Actual Size.

Alarm Details

Physical size of ACS db is more than 50% of its Actual Size.The size will be reduced after purge ACS transaction log and compress ACS db.

Generated On

Mon Mar 17 05:00:06 CET 2014


ACS View Database Compression and Backup is configured and runs without error:

The Backup Job stores a maximum of 4 Months to a FTP Server. 

Fullbackup: Monthly

Incremental: Weekly

DB: Compression activated


Purge and Incremental Backup History  
NameStart TimeEnd TimeStatus
DatabasePurge-JobMon Mar 17 04:00:00 CET 2014Mon Mar 17 04:00:00 CET 2014



as far as I can see from the CLI there should be an oversized DB:

ACS21/acsadmin(config-acs)# acsview show-dbsize 
     Actual DB Size (bytes) : 1585192960
     Actual DB Size (GBs) :1.48
     Physical DB Size (bytes):1605386240
     Physical DB Size (GBs) :1.5
     Physical ACSviewlog file Size (GBs) :0
ACS21/acsadmin(config-acs)# exit

ACS21/admin# show application status acs


Process 'database'                  running
Process 'management'                running
Process 'runtime'                   running
Process 'adclient'                  running
Process 'ntpd'                      running
Process 'view-database'             running
Process 'view-jobmanager'           running
Process 'view-alertmanager'         running
Process 'view-collector'            running
Process 'view-logprocessor'         running


Looking at the User guide:

"The ACS Database needs to be compressed as a part of maintenance operation. You can run the acsview-db-compress command from acs-config mode to reduce the physical size of the view database when there is a difference between the physical size and actual size of the view database. ACS 5.5 stops only the log collector services during compress operation and will be up and running after the compress operation is completed. You need to enable the log recovery feature to recover the log messages that are received during the database compress operation.

In ACS 5.5, database compress operation is automated. You can check the Enable ACS View Database Compress check box to compress the ACS View database automatically every day at 5 A.M. The database compress operation is run everyday automatically at 5 A.M whenever there is a need."


I already tried to manually compress the DB via "acsview-db-compress" without any effect. 




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