I do this but error the same:
Saving Backup 5...done!
Initializing Backup 5
Backup Lock acquired!
Running pre-backup hooks...
Adding items...
rsync: writefd_unbuffered failed to write 4 bytes to socket [sender]: Broken pipe (32)
rsync: write failed on "/var/spool/asterisk/tmp/backup-5/var/spool/asterisk/monitor/SIP-6126-0005bf25-2024-01-15-09-29-04.wav": No space left on device (28)
rsync error: error in file IO (code 11) at receiver.c(301) [receiver=3.0.6]
rsync: connection unexpectedly closed (860332 bytes received so far) [sender]
rsync error: error in rsync protocol data stream (code 12) at io.c(600) [sender=3.0.6]
mysqldump: Couldn't execute 'show fields from `cdr`': Incorrect key file for table '/tmp/#sql_6c2_0.MYI'; try to repair it (126)
rsync: writefd_unbuffered failed to write 4 bytes to socket [sender]: Broken pipe (32)
rsync: write failed on "/var/spool/asterisk/tmp/backup-5/var/lib/asterisk/bin/archive_recordings": No space left on device (28)
rsync error: error in file IO (code 11) at receiver.c(301) [receiver=3.0.6]
rsync: connection unexpectedly closed (243 bytes received so far) [sender]
rsync error: error in rsync protocol data stream (code 12) at io.c(600) [sender=3.0.6]
Whoops\Exception\ErrorException: mkdir(): No space left on device in file /var/www/html/admin/modules/backup/functions.inc/class.backup.php on line 211
Stack trace:
1. Whoops\Exception\ErrorException->() /var/www/html/admin/modules/backup/functions.inc/class.backup.php:211
2. Whoops\Run->handleError() :0
3. mkdir() /var/www/html/admin/modules/backup/functions.inc/class.backup.php:211
4. FreePBX\modules\Backup\Backup->add_items() /var/www/html/admin/modules/backup/bin/backup.php:54