How to resolve data conflicts between sites during replication

Replication causes data to be transferred or forwarded to another management server. Sites can have multiple replication partners, and any changes made on one partner are replicated to all sites.
What data is duplicated?
Neither replication site overrides the other. Instead they compare what each site has, and if one site has a package or piece of content the other does not, then it is shared. If all LiveUpdate content and client packages match up, then nothing is exchanged.
The replication partners duplicate the following data:
  • Policies and groups (required bidirectional)
  • LiveUpdate content and client installation packages, if you specify these options (optional bidirectional)
  • Logs (optional bidirectional or unidirectional)
If you upgrade the management server on one site, you must upgrade the management server version on all sites. Replication does not occur if the database schema versions do not match.
The following table describes how the management server resolves conflicts if administrators change settings on the sites in a site farm.
How the management server resolves conflicts between sites
Conflict type
Example
Resolution
Two differences cannot exist together.
Administrators for site 1 and site 2 both configure an identical Firewall policy setting. On site 1, the setting is enabled. On site 2, the setting is disabled.
The management server retains only the most recently made change.
For example, if you made a change on site 1 first, and site 2 second, then the site 2 change is retained.
The same variable is created for both sites.
Administrators on site 1 and site 2 both add a group with the same name.
The management server retains both changes, adding a tilde and the numeral 1 (~1) after the more recently made variable.
For example, with two groups named as Sales, the most recently named Sales group becomes Sales ~1.
Data can merge without conflict.
The administrator for site 1 adds two Firewall policies and the administrator for site 2 adds five Firewall policies.
The management server merges the changes.
For example, the management server displays all seven Firewall policies on both sites.