It would be nice to add a feature to MaxScale that could rebuild a corrupted machine or automatically build a new replica. That replica should then automatically join an existing cluster. This could be accomplished in a similar method that is used with Galera SST.
On the current master:
1. Launch MariaBackup
2. Create a streaming snapshot of the datadir using xbstream/mbstream
3. Compress with a utility like pigz for minimal transfer time
4. Stream to the joiner/replica server with socat.
On the joining node:
1. Receive the socat stream
3. Prepare MariaBackup
4. Find the GTID position
5. Register with the existing master / MaxScale
6. Start slave replication