• Network administrators can use server backup appliances to safeguard data.Thomas Northcut/Digital Vision/Getty Images
  
  Server appliances are systems used for specific purposes within a computer network, and they require hardware and software. Server appliances can perform multiple functions, such as file storage, email and website service, in a single system. A backup server appliance consists of a computer and software program specifically dedicated to duplicating data within a computer network. Network administrators can use server backup appliances to restore lost or corrupted data across an entire network, including on-site and off-site locations.
  
  

bruAPP

• bruAPP server backup appliances, manufactured by Tolis Group, offer dedicated backup and recovery functions in self-contained units. The systems store data on one- and two-terabyte disks, with a capacity up to 32 terabytes per appliance. Users can choose rack-mountable or tower bruAPP appliances. In addition to internal disks, bruAPP systems can also connect to external tape drive systems. The appliances operate using BRU Server software, which can back up Unix and Windows systems. bruAPP systems can back up all computer systems across a network, including servers, desktop computers and laptop computers operated from off-site locations. Organizations using bruAPP server backup appliances can purchase licenses in incremental packs, available for $24 per computer (as of October 2010). bruAPP server backup appliances include a three-year hardware warranty and one year of software support.
  
  

Arkeia

• Arkeia Software manufactures a line of server backup appliances that can provide backup to disks or tape drive systems. Arkeia backup appliances operate using the Arkeia Network Backup application, which users can access and control from on-site or remote locations. Systems feature a Linux-based operating system, which provides higher protection from viruses and Trojan horse programs than Windows operating systems. Arkeia backup appliances include Arkeia Enterprise Encryption Option, a software package that encrypts data as the system performs a backup. Arkeia appliance systems can back up data from computers running on a wide range of operating systems, including Linux, Netware, Apple Macintosh and Windows. Arkeia offers eight backup appliance models, ranging in disk capacity from one to 10 terabytes. Each integrated software and hardware system comes with a single license.
  
  

3X Backup

• 3X Systems manufactures server backup systems designed to back up data across entire networks, including desktop computers, off-site laptops, servers and home office computers. The devices are also portable, allowing users to move the appliances between locations. Recovery functions allow administrators to pinpoint and restore lost data from specific computers. Users can also access data from 3X Backup appliances to move files to new systems in the event of computer theft. Administrators can select a specific time period for data retention, from a few days to years, and systems allow customization to comply with legal or business-specific requirements. 3X Backup systems offer automated backup, which users can configure to meet their time requirements, eliminating the need for an administrator's presence during backups. Remote operation allows users to back up entire systems at one time, or administrators can configure separate backups according to the time zones of individual users.