# FAQ

## Fundamentals

### How can I change my user password?

Unfortunately, updating your password is not currently possible.

### What user permissions do I get?

You have access to all command categories; however, within the "dangerous" category, permissions are limited to the `INFO`, `KEYS`, and `SORT` commands only. For more information, refer to the [<mark style="color:blue;">In-Memory DB documentation</mark>](https://redis.io/docs/latest/operate/oss_and_stack/management/security/acl/#command-categories).

### How do you distinguish between supported and unsupported features?

According to the [<mark style="color:blue;">In-Memory DB documentation</mark>](https://redis.io/docs/latest/), stack features that display their logo are not supported.

### Does IONOS CLOUD DBaaS use or provide support for an In-Memory DB Sentinel?

Unfortunately, <code class="expression">space.vars.ionos\_cloud</code> does not use or provide support for an In-Memory DB Sentinel. However, we offer monitoring and automatic failover features.

### Can I customize my cluster's Block Storage capacity?

The provisioned Block Storage in an In-Memory DB cluster depends on the amount of RAM configured and the data persistence mode selected. As a result, you cannot select the amount of Block Storage for your cluster; instead, they are calculated automatically following a pre-determined ratio. For more information, see [<mark style="color:blue;">Determine Provisioned Block Storage in an In-Memory DB Cluster</mark>](/cloud/databases/in-memory-db/overview/data-persistence.md#determine-provisioned-block-storage-in-an-in-memory-db-cluster).


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