Why Satellite services remain stopped after a failed offline backup?

Issue

• After a failed offline backup, Satellite services are not restarted and Satellite is unavailable:

  # satellite-maintain backup offline /backup
  [...]
  \--------------------------------------------------------------------------------
  Backup mongo offline: 
  - Collecting Mongo data                                               [FAIL]    
  Failed executing tar --selinux --create --file=/backup/satellite-backup-2021-03-10-11-17-59/mongo_data.tar --exclude=mongod.lock --listed-incremental=/backup/satellite-backup-2021-03-10-11-17-59/.mongo.snar --transform 's,^,var/lib/mongodb/,S' -S *, exit status 2:
  tar: /backup/satellite-backup-2021-03-10-11-17-59/mongo_data.tar: Cannot write: No space left on device
  tar: Error is not recoverable: exiting now
  \--------------------------------------------------------------------------------
  Scenario [Backup] failed.
  
  The following steps ended up in failing state:
  
  [backup-offline-mongo]
  
  Resolve the failed steps and rerun
  the command. In case the failures are false positives,
  use --whitelist="backup-offline-mongo"
  
  
  The runner is already in quit state
  

  # satellite-maintain service status | egrep displaying\|Active
  / displaying rh-mongodb34-mongod
   Active: inactive (dead) since Wed 2021-03-10 11:19:20 GMT; 3min 0s ago
  / displaying postgresql
   Active: inactive (dead) since Wed 2021-03-10 11:19:13 GMT; 3min 7s ago
  / displaying qdrouterd
   Active: inactive (dead) since Wed 2021-03-10 11:19:13 GMT; 3min 7s ago
  / displaying qpidd
   Active: inactive (dead) since Wed 2021-03-10 11:19:13 GMT; 3min 7s ago
  / displaying rh-redis5-redis
   Active: inactive (dead) since Wed 2021-03-10 11:19:13 GMT; 3min 8s ago
  / displaying squid
   Active: inactive (dead) since Wed 2021-03-10 11:19:12 GMT; 3min 8s ago
  / displaying pulp_celerybeat
   Active: inactive (dead) since Wed 2021-03-10 11:19:12 GMT; 3min 8s ago
  / displaying pulp_resource_manager
   Active: inactive (dead) since Wed 2021-03-10 11:19:11 GMT; 3min 9s ago
  / displaying pulp_streamer
   Active: inactive (dead) since Wed 2021-03-10 11:19:07 GMT; 3min 13s ago
  / displaying pulp_workers
   Active: inactive (dead) since Wed 2021-03-10 11:19:07 GMT; 3min 13s ago
  / displaying smart_proxy_dynflow_core
   Active: inactive (dead) since Wed 2021-03-10 11:19:02 GMT; 3min 18s ago
  / displaying tomcat
   Active: inactive (dead) since Wed 2021-03-10 11:19:02 GMT; 3min 18s ago
  / displaying dynflow-sidekiq@orchestrator
   Active: inactive (dead) since Wed 2021-03-10 11:19:01 GMT; 3min 19s ago
  / displaying foreman
   Active: inactive (dead) since Wed 2021-03-10 11:19:00 GMT; 3min 20s ago
  / displaying httpd
   Active: inactive (dead) since Wed 2021-03-10 11:18:59 GMT; 3min 21s ago
  / displaying puppetserver
   Active: inactive (dead) since Wed 2021-03-10 11:18:54 GMT; 3min 26s ago
  / displaying dynflow-sidekiq@worker
   Active: inactive (dead) since Wed 2021-03-10 11:18:53 GMT; 3min 27s ago
  / displaying dynflow-sidekiq@worker-hosts-queue
   Active: inactive (dead) since Wed 2021-03-10 11:18:50 GMT; 3min 30s ago
  / displaying foreman-proxy
   Active: inactive (dead) since Wed 2021-03-10 11:18:48 GMT; 3min 32s ago
  

• Why Satellite services are not restarted after a failed offline backup?