# External Storage auf Nextcloud
[Add external storage failed at "action needs authentication failed - wrong password" - ℹ️ Support - Nextcloud community](https://help.nextcloud.com/t/add-external-storage-failed-at-action-needs-authentication-failed-wrong-password/213089/6)
[\[Bug\]: Can't save global credentials in external storage · Issue #49829 · nextcloud/server](https://github.com/nextcloud/server/issues/49829)
[Using the occ command — Nextcloud latest Administration Manual latest documentation](https://docs.nextcloud.com/server/latest/admin_manual/occ_command.html#files-external-label)
## Files external
These commands are used for managing Nextcloud’s *External Storage* feature. In addition to replicating the configuration capabilities in the Web UI, additional capabilities include exporting / importing configurations, scanning *External Storage* mounts that require login credentials, and configuring update notifications (if supported by the storage type).
Note
These commands are only available when the “External storage support” app (`files_external`) is enabled.
Available commands for the “files\_external” namespace:
```
files_external:applicable Manage applicable users and groups for a mount
files_external:backends Show available authentication and storage backends
files_external:config Manage backend configuration for a mount
files_external:create Create a new mount configuration
files_external:delete Delete an external mount
files_external:export Export mount configurations
files_external:import Import mount configurations
files_external:list List configured admin or personal mounts
files_external:notify Listen for active update notifications for a configured external mount
files_external:option Manage mount options for a mount
files_external:scan Scan an external storage for changed files
files_external:verify Verify mount configuration
```
`files_external:scan` provides the ability to provide a username and/or password for cases where login credentials are used.
Use `files_external:export` to export all admin mounts to stdout, and `files_external:export [user_id]` to export the mounts of the specified Nextcloud user.
Use `files_external:import [filename]` to import legacy JSON configurations, and to copy external mount configurations to another Nextcloud server.
## Beispiel
Hello  I Could solve my Issue using this solution (Thanks to jtr) :
Connect to your VM (Shell Linux) hosting your NextCloud. Use SU.
Go to the Folder hosting NextCloud with the occ file. (This step should look evidence for everyone , but I am Noob hahaha, I give advices for Noob  )
And write this :
Here , you can do this :
sudo -u www-data php occ files\_external:list
You can see the bad External Drives and delete it with :
sudo -u www-data php occ files\_external:delete X
Then , you can re-create good ones by using this command :
sudo -u www-data php occ files\_external:create Blabla ‘sfpt’ password::password -c host=X.X.X.X -c share=/X/ -c root=/X/ -c domain=workgroup -c user=X -c password=X
Replace : X with Yours 
Have a nice day 