vCenter Server Appliance Data Integrity Best Practices recommends using the native file-based backup and restore operations to protect the vCenter Server Appliance.
Review: VMware vSphere User Guide: Considerations and Limitations for File-Based Backup and Restore
Image-Based Backup of the VCSA may be performed for an added level of protection to compliment an existing native VCSA file-based backup. Preference should always be given to backing up and restoring using the native vCenter File-Based Backups.
Review: VMware vSphere User Guide: Considerations and Limitations for Image-Based Backup and Restore
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