How to Enable Session Reliability on NetScaler in High Availability
When high availability failover occurs, the ICA sessions will get disconnected. In order to avoid the ICA session disconnection on high availability failover, you can configure Session Reliability.
- Enabling this feature will result in increased bandwidth consumption which is due to ICA compression being turned off by the feature, and the extra traffic between the primary and secondary nodes to keep them in sync.
- This feature is supported in Active-Passive mode only. Active-Active mode is not currently supported
If you still want to go ahead, full details are given here