以下是我们的错误提示如果没有存档和wal设置就无法备份数据库？
bash-4.2$ **barman check main-db-server**
WARNING: No archiver enabled for server 'main-db-server'. Please turn on 'archiver', 'streaming_archiver' or both
WARNING: Forcing 'archiver = on'
Server main-db-server:
PostgreSQL: OK
is_superuser: OK
wal_level: FAILED (please set it to a higher level than 'minimal')
directories: OK
retention policy settings: OK
backup maximum age: OK (interval provided: 1 day, latest backup age: 3 minutes, 45 seconds)
compression settings: OK
failed backups: OK (there are 0 failed backups)
minimum redundancy requirements: OK (have 4 backups, expected at least 0)
ssh: OK (PostgreSQL server)
not in recovery: OK
archive_mode: FAILED (please set it to 'on')
archive_command: FAILED (please set it accordingly to documentation)
archiver errors: OK
bash-4.2$
Barman.conf条目 ***** barman.conf *******
[main-db-server]
description = "Main DB Server"
ssh_command = ssh postgres@xxxx
conninfo = host=xxxx user=postgres
parallel_jobs = 2
retention_policy_mode = auto
retention_policy = RECOVERY WINDOW OF 7 days
backup_method = rsync
****** postgres.conf *******
-bash-4.2$ cat postgresql.conf | grep archive
wal_level = minimal # minimal, archive, hot_standby, or logical
archive_mode = off # allows archiving to be done
archive_command = '' # command to use to archive a logfile segment
# placeholders: %p = path of file to archive
# e.g. 'test ! -f /mnt/server/archivedir/%f && cp %p /mnt/server/archivedir/%f'
#archive_timeout = 0 # force a logfile segment switch after this
#max_standby_archive_delay = 30s # max delay before canceling queries
# when reading WAL from archive;
-bash-4.2$
只想在没有lo流的情况下进行备份，或者没有计划用作时间点恢复。酒保可以支持吗？