Offline Backup job failing for pulp

Hi I’m having a problem with the backup command backing up pulp. Unfortuntely theres not much error to indicate what the issue migh be.
backup commnad used is :
foreman-maintain backup offline --assumeyes /backup

Failure is reported :
Backup Pulp data:
/ Collecting Pulp data [FAIL]
Failed executing tar --selinux --create --file=/backup/katello-backup-2022-05-23-11-45-38/pulp_data.tar --exclude=var/li b/pulp/katello-export --listed-incremental=/backup/katello-backup-2022-05-23-11-45-38/.pulp.snar --transform ‘s,^,var/li b/pulp/,S’ -S *, exit status 2:
tar: /backup/katello-backup-2022-05-23-11-45-38/pulp_data.tar: Wrote only 4096 of 10240 bytes
tar: Error is not recoverable: exiting now

Expected outcome:
Backup sucessful

Foreman and Proxy versions:
Pulp 3

Foreman and Proxy plugin versions:

Distribution and version:

Other relevant data:

Hi @sinewave,

Do you see any errors in /var/log/messages that seem to relate to this, or that occurred at the same time?