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## Testing Cluster Interconnect Redundancy

This section provides the procedure for testing cluster interconnect redundancy.

## How to Test Cluster Interconnects

Before You Begin

To perform this procedure, assume a role that provides `solaris.cluster.read` and `solaris.cluster.modify` RBAC authorization.

1. Disconnect one of the cluster transport cables from a node in the cluster.

   Messages similar to the following appear on the consoles of each node and are logged in the `/var/adm/messages` file.

       Nov  4 08:27:21 node1 genunix: WARNING: ce1: fault detected external to device; service degraded
       Nov  4 08:27:21 node1 genunix: WARNING: ce1: xcvr addr:0x01 - link down
       Nov  4 08:27:31 node1 genunix: NOTICE: clcomm: Path node1:ce1 - node1:ce0 being cleaned up
       Nov  4 08:27:31 node1 genunix: NOTICE: clcomm: Path node1:ce1 - node1:ce0 being drained
       Nov  4 08:27:31 node1 genunix: NOTICE: clcomm: Path node1:ce1 - node1:ce0 being constructed
       Nov  4 08:28:31 node1 genunix: NOTICE: clcomm: Path node1:ce1 - node1:ce0 errors during initiation
       Nov  4 08:28:31 node1 genunix: WARNING: Path node1:ce1 - node1:ce0 initiation
       encountered errors, errno = 62.
         Remote node may be down or unreachable through this path.

2. Verify that Oracle Solaris Cluster has registered that the interconnect is down.

   Use the following command to verify that the interconnect path displays as `Faulted`.

       # clinterconnect status

3. Reconnect the cluster transport cable

   Messages similar to the following appear on the consoles of each node and are logged in the `/var/adm/messages` file.

       Nov  4 08:30:26 node1 genunix: NOTICE: ce1: fault cleared external to device; service available
       Nov  4 08:30:26 node1 genunix: NOTICE: ce1: xcvr addr:0x01 - link up 1000 Mbps full duplex
       Nov  4 08:30:26 node1 genunix: NOTICE: clcomm: Path node1:ce1 - node1:ce0 being initiated
       Nov  4 08:30:26 node1 genunix: NOTICE: clcomm: Path node1:ce1 - node1:ce0 online

4. Verify that Oracle Solaris Cluster has registered that the interconnect is up.

   Use the following command to verify that the interconnect path displays as `Online`.

       # clinterconnect status

5. Repeat Step 1 through Step 4 on each cluster transport cable in the node.
6. Repeat Step 1 through Step 5 on each node in the cluster.

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