Data loss considerations

Edit online

The cluster services might lose data under certain circumstances.

Distributed session cache
  • The policy data, which is used to indicate the first port that is available for use by the cluster, is changed.
  • The policy data that defines the masters is changed.
Configuration database
An appliance that is operating as a single node cluster fails. In this situation, you must rely on snapshot information to restore the configuration database.
Internal runtime database
  • An appliance that is operating as a single node cluster fails. In this situation, there is no recovery possible.
  • The primary master fails, and no secondary master is configured.
  • The maximum size of the internal runtime database is adjusted such that the new maximum size is smaller than the existing database.