# Modifying a Neptune global database
<a name="neptune-gdb-modifying"></a>

The DB cluster parameter groups can be configured independently for each Neptune DB cluster in a global database, but it's best to keep settings consistent across the clusters to avoid unexpected behavior changes if a secondary cluster has to be promoted to primary.

You can modify the settings of the global database itself using the [modify-global-cluster](https://docs.aws.amazon.com/cli/latest/reference/neptune/modify-global-cluster.html) CLI command (which wraps the [ModifyGlobalCluster](api-global-dbs.md#ModifyGlobalCluster) API). For example, you could change the global database identifier and at the same time turn off deletion protection like this:

```
aws neptune modify-global-cluster \
  --region (region of the DB cluster to modify) \
  --global-cluster-identifier (current global database ID) \
  --new-global-cluster-identifier (new global database ID to assign) \
  --no-deletion-protection
```