verify barman backed up files after failure I have a barman that get backups from a postgres installed on another server. its config is:

    active: True
    archive_mode: on
    archived_count: 47588
    archiver: True
    archiver_batch_size: 0
    backup_method: rsync
    backup_options: BackupOptions(['exclusive_backup'])
    bandwidth_limit: None
    check_timeout: 30
    compression: gzip
    custom_compression_filter: None
    custom_decompression_filter: None
    disabled: False
    failed_count: 0
    immediate_checkpoint: True
    is_archiving: True
    is_superuser: True
    last_archived_time: 2018-11-17 14:49:58.810545+03:30
    last_archived_wal: 0000000100002ACC0000003B
    last_backup_maximum_age: 7 days (latest backup: 6 hours, 3 minutes, 11 seconds )
    last_failed_time: None
    last_failed_wal: None
    max_incoming_wals_queue: None
    minimum_redundancy: 1
    msg_list: []
    network_compression: True
    parallel_jobs: 15
    path_prefix: None
    pgespresso_installed: False
    post_archive_retry_script: None
    post_archive_script: None
    post_backup_retry_script: None
    post_backup_script: None
    pre_archive_retry_script: None
    pre_archive_script: None
    pre_backup_retry_script: None
    pre_backup_script: None
    recovery_options: RecoveryOptions([])
    replication_slot: None
    replication_slot_support: True
    retention_policy: REDUNDANCY 2
    retention_policy_mode: auto
    reuse_backup: None
...


about some days ago we had some problem on postgres and barman failed to back up. now as I list backup logs I see this:

20181117T011505 - Sat Nov 17 08:46:53 2018 - Size: 2.2 TiB - WAL Size: 9.8 GiB (tablespaces: ...)
20181116T011506 - Fri Nov 16 08:48:28 2018 - Size: 2.2 TiB - WAL Size: 38.3 GiB (tablespaces: ...)
20181114T011504 - FAILED


I checked my postgres tablespace and its size is exactly 2.2TB.
Now the questions are: 


are backups correct?  
did I lost data due to downtime?
Use the standard barman commands: barman status, barman show-backup and barman check-backup. See documentation.