KB1857: Unable to allocate processing resources
www.veeam.com › kb1857Feb 13, 2014 · See Enabling Parallel Processing. Remember to not under-allocate your Veeam Backup server, especially if it is your backup proxy. If the configuration database is installed on a local SQL instance (the default installation), then SQL Express should be allocated 1 CPU core and 1-1.5 GB RAM when planning your resource usage.