I have some questions regarding ElasticSearch backups. As described in the documentation (https://www.elastic.co/guide/en/elasticsearch/guide/current/backing-up-your-cluster.html) the first backup is a full backup and all following backups are incremental.
If I decide to run a backup every night e.g. this means that after three days I need to restore the full backup and the backups of two days to get the last backup state. After one year this would mean that I need to restore the first backup and followed by 364 incremental backups.
Do I understand this correct?
Another question: if I create another repository and I run again a backup. Will this backup be a full backup?