# TiDB Cloud - https://tidbcloud.com
![left](./student-guide/diagram/TiDBCloudProviderRegion_aa_001_20220524.png)
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The average distance between two availability zones within the same CSP region is about 20 – 30 kilometers, so your TiDB is HA and Disaster Recovery capable out of the box.

You can horizontally scale-in and scale-out the SQL layer based on the workload on the TiDB servers.

You can horizontally scale-in and scale-out the Storage layer based on the workload on the TiKV servers.