A Failback operation will not go through when there is offline or faulty host exists in a cluster.
Error Message we encounter.
This Issue could occur in different scenarios:
Scenarios 1:
In a Multi-node cluster, if one node is faulty then Failback will not start.
Scenarios 2:
In a Multi-node cluster, all hosts are healthy but one node IO filter is unavailable. The failback will not start.
The Failback will be successful in the below scenarios:
Scenarios 1:
In a Multi-node cluster, all hosts are healthy but one host is in maintenance mode. The failback will work.
Scenarios 2:
in a Multi-node cluster, one host is faulty and we replaced the faulty host with a healthy host. The failback will work.
Scenarios 2:
In a Multi-node cluster, if one host is faulty and we removed the faulty host from the cluster (remove from inventory). The failback will work.