Sync Redundancy

The use of more than one physical synchronization interface (1st sync, 2nd sync, 3rd sync) for synchronization redundancy is not supported.
For synchronization redundancy, you can use bond interfaces.

Requirements and Limitations:

• The bond slave interfaces on each Cluster Member must connect to the same switch or VLAN (for example, physical interface eth1 on all Cluster Members must connect to the same switch).
• We recommend that interfaces and other network hardware support the IEEE 802.3 bond mode.
• If you use a High Availability bond, you must add slave interfaces to the bonding group in the same order on all Cluster Members.

Important - See Supported Topologies for Synchronization Network.

To configure bond interfaces for sync High Availability:

1. Define a bond interface on each Cluster Member with unused slave interfaces.
2. In SmartConsole, open the cluster object.
3. In the left navigation tree, go to Network Management page.
4. Click Get Interfaces > Get Interfaces With Topology to get the members' IP addresses.
5. Select the applicable interface and click Edit.
6. In General section, in the Network Type field, select Sync.
7. Click OK.
8. Install the Access Control Policy on this cluster object.
9. Make sure that the Sync interfaces are in the bond. Run this command on all Cluster Members:
   • In Gaia Clish: show cluster members interfaces all
   • In Expert mode: cphaprob -am if