Where can I find my snapshots of open search?

Question

I have an open search domain created in version Elasticsearch 6.8 within private subnets in vpc.
When I see 
>  For domains running OpenSearch 5.3 and later, Amazon OpenSearch takes hourly automated snapshots,

Then where can I find the snapshots taken by open search? What's the naming format I can look into S3?
I have not configured anything manually related to S3 bucket for open search snapshot.

Answer

As per the [documentation](https://docs.aws.amazon.com/opensearch-service/latest/developerguide/managedomains-snapshots.html), OpenSearch takes automatic snapshots in a service managed repository (not accessible by user and potential reason you do not find them). You can register your own S3 repository and by using  Snapshot Management (SM) policy, direct the automatic snapshots to your S3 bucket and ask AWS support to deactivate the automatic snapshot mechanism :

```
You can set up a Snapshot Management (SM) policy in OpenSearch Dashboards to automate periodic snapshot creation and deletion. SM can snapshot of a group of indices, whereas Index State Management can only take one snapshot per index. To use SM in OpenSearch Service, you need to register your own Amazon S3 repository. For instructions to register your repository, see Registering a manual snapshot repository.

Prior to SM, OpenSearch Service offered a free, automated snapshot feature that's still turned on by default. This feature sends snapshots into the service-maintained cs-* repository. To deactivate the feature, reach out to AWS Support.

For more information on the SM feature, see Snapshot management
in the OpenSearch documentation.
```

Where can I find my snapshots of open search?

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