Backup appliances, sometimes referred to as PBBAs (Purpose Built Backup Appliances) are big business nowadays. Essentially, a backup appliance is a device designed specifically to manage and store system backups. Client backups are an area to which every MSP should devote significant time and attention. For a start, MSPs have to ensure that customers backup their data effectively. It’s arguably the most important part of IT service provision. After all, a failed backup plus an office disaster can equal total loss of data and catastrophic business failure. That is fact, and not pure melodrama.