Betreibe den Broker seit 3-4 Monaten, hatte mit KNX angefangen, inzwischen ein paar scripte laufen und Angefangen Wetterdaten zu verarbeiten.
Raspi 4 mit 8gbRam und SDKarte

Ab und zu bleiben in letzter Zeit meine KNX Befehle aus der visu hängen, entweder passiert gar nichts oder 30sec. verspätet . Jetzt hatte ich den Tipp bekommen zuerst mal redis abzuschalten und mit einer SSD aufzurüsten.

Im Forum hier gibt es ein paar Beiträge mit dem Thema redis abschalten, dort funktionieren aber einige links nicht mehr.

Was hatte ich beim ersten Versuch falsch angegeben?

Linux IOBroker 5.4.51-v7l+ #1333 SMP Mon Aug 10 16:51:40 BST 2020 armv7l

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Sat Mar 20 19:42:18 2021 from 192.168.178.60

SSH is enabled and the default password for the 'pi' user has not been changed.
This is a security risk - please login as the 'pi' user and type 'passwd' to set a new password.


Wi-Fi is currently blocked by rfkill.
Use raspi-config to set the country before use.

pi@IOBroker:~ $ iobroker stop
pi@IOBroker:~ $ iobroker setup custom
Current configuration:
- Objects database:
  - Type: file
  - Host/Unix Socket: 127.0.0.1
  - Port: 9001
- States database:
  - Type: file
  - Host/Unix Socket: 127.0.0.1
  - Port: 9000
- Data Directory: ../../iobroker-data/

Type of objects DB [(f)ile, (r)edis, ...], default [file]: r

When Objects and Files are stored in a Redis database please consider the following:
1. All data will be stored in RAM, make sure to have enough free RAM available!
2. Make sure to check Redis persistence options to make sure a Redis problem will not cause data loss!
3. The Redis persistence files can get big, make sure not to use an SD card to store them.

Host / Unix Socket of objects DB(redis), default[127.0.0.1]: file
Port of objects DB(redis), default[6379]: 
Type of states DB [(f)file, (r)edis, ...], default [redis]: f
Host / Unix Socket of states DB (file), default[127.0.0.1]: 
Port of states DB (file), default[9000]: 
Data directory (file), default[../../iobroker-data/]: 
Host name of this machine [IOBroker]: 
This host appears to be a Master or a Single host system. Is this correct? [Y/n]: y

Important: Using redis for the Objects database is only supported
with js-controller 2.0 or higher!
When your system consists of multiple hosts please make sure to have
js-controller 2.0 or higher installed on ALL hosts *before* continuing!


Important #2: If you already did the migration on an other host
please *do not* migrate again! This can destroy your system!


Important #3: The process will migrate all files that were officially
uploaded into the ioBroker system. If you have manually copied files into
iobroker-data/files/... into own directories then these files will NOT be
migrated! Make sure all files are in adapter directories inside the files
directory!


Do you want to migrate objects and states from "file/file" to "redis/file" [y/N]: y

Migrating the objects database will overwrite all objects! Are you sure that this is not a slave host and you want to migrate the data? [y/N]: y

Connecting to previous DB "file"...
Creating backup ...
This can take some time ... please be patient!
host.IOBroker 3959 states saved
host.IOBroker 4760 objects saved
Backup created: /opt/iobroker/backups/2021_03_21-13_49_38_backupiobroker-migration.tar.gz
updating conf/iobroker.json

Connecting to new DB "redis" (can take up to 20s) ...
No connection to objects file:6379[redis]

New Database could not be connected. Please check your settings. No settings have been changed.
restoring conf/iobroker.json
pi@IOBroker:~ $