Can Replica shards be used for Disaster Recovery

We don't have backup in our cluster.
Can we you replicas for disaster recovery purpose..?

Elasticsearch version: 8.12

Thank you...!

Can you give more context about what kind of disaster recovery you are thinking?

If you lose a node that has primary shards, a replica shard in another node will be promoted to primary and the cluster will try to allocate a new replica shard in a different node.


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