RESOLUTION
HSPcomplete system installed into VE could be backed up using standard Virtuozzo Backup Tools on a remote or local Virtuozzo backup server. Backup of HSPcomplete VE should be performed with stopping VE during backup procedure to guarantee database consistency.
In case HSPcomplete database is running on remote database server - please to not forget to backup remote database server when HSPcomplete VE is stopped.
Another possible solution suitable for HSPcomplete systems installed on physical servers and Virtuozzo VEs is to use hspc-mn-backup utility, shipped with HSPcomplete distribution. For detailed information regarding the utility you may check this article in HSPcomplete Advanced Configuration Manual
Keywords: backup HSPcomplete