Bug ID 807005: Save-on-auto-sync is not working as expected with large configuration objects

Last Modified: Dec 16, 2020

Bug Tracker

Affected Product:  See more info
BIG-IP TMOS(all modules)

Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.6.1, 11.6.1 HF1, 11.6.1 HF2, 11.6.2, 11.6.2 HF1, 11.6.3,,,,, 11.6.4, 11.6.5,, 13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,, 14.1.0,,,,,, 14.1.2,,,,,,, 15.0.0, 15.0.1,,,, 15.1.0,,,,

Fixed In:

Opened: Jul 18, 2019
Severity: 3-Major


In device group has enabled 'save sys config' for all auto-sync operations using the following command: modify cm device-group name save-on-auto-sync true Warning: Enabling the save-on-auto-sync option can unexpectedly impact system performance when the BIG-IP system automatically saves a large configuration change to each device.


Configuration is not saved, which leads to out-of-sync condition.


-- The save-on-auto-sync option is enabled. -- Device has large configuration, such as 2,100 virtual servers and ~1100 partitions


You can avoid this issue by using manual sync instead of auto-sync, or by not enabling 'save-on-auto-sync'.

Fix Information


Behavior Change