Backup operation failed for SDDC Manager System Configuration

Products

• VMware SDDC Manager

Issue/Introduction

• The SDDC backup fails with the error "Backup operation failed for SDDC Manager System Configuration".
  
  

  Remediation Message: If the error condition is not a transient condition, resolve it. If you manually initiated the backup, try again. If not, the failed backup will be automatically retried

• The following entries are seen in /var/log/vmware/vcf/sddc-support/backup-####/sos.log:

  YYYY-MM-DDT00:00:00+0000 ERROR [vcf_sos] [sddcmanagerbackup.py::export_system_configurations::170::backup-##############] Exporting SDDC Manager metadata operation failed
  YYYY-MM-DDT00:00:00+0000 ERROR [vcf_sos] [sddcmanagerbackup.py::export_system_configurations::171::backup-##############] Backup operation failed for SDDC Manager System Configuration
  YYYY-MM-DDT00:00:00+0000  ERROR [vcf_sos] [sddcmanagerbackup.py::export_system_configurations::172::backup-##############] Traceback (most recent call last):
    File "backup/sddcmanagerbackup.py", line 236, in export_metadata
    File "backup/sddcmanagerbackup.py", line 237, in <lambda>
  KeyError: 'primaryDatastoreName'

  
  
  

Environment

VCF 9.x

Cause

SDDC Manager file-based backups failed due to a missing primary datastore metadata reference in the system configuration.

A previous datastore change was made directly in vCenter but was not reflected or synchronized within the SDDC Manager database. When the SDDC Manager backup job triggered, the script failed to find the primaryDatastoreName key for the cluster, resulting in a fatal Python KeyError.

Resolution

Please contact Broadcom support for the resolution for this issue.