BackupBackup in computer engineering refers to the copying of data for the purpose of having a second copy of an original source, in case of damage to the original data source. The "data" in question may be either data as such, or stored program code, both of which are treated the same by the backup software.
The word may be used as a noun, e.g., "have you remembered to move the backup to a safe place?", or as a verb, "he didn't back up the data, so we lost last week's work". Also common are various combinations, such as backup copy, backup software (the applications that are used for performing the backing up of data, i.e., the systematic generation of backup copies), backup policy (an organisation's procedures and rules for ensuring that adequate amounts and types of backups are made, including suitably frequent testing of the process for restoring the original (production) system from the backup copies).
As of 2004, backups are most often made from hard disk based production systems to large capacity magnetic tape storage, or optical disk WORM media like CD-R and DVD-R and similar formats. During the period 1975–95, most personal/home computer users associated backup mostly with copying floppy disks.
There are four primary metrics relating to data backup:
Computer backups are useful primarily for two purposes, the first and most obvious is to restore a computer to an operational state following a disaster, such as loss of a hard disc or the file system becoming so badly corrupted it cannot be read. The second use, often overlooked but probably more common, is to facilitate the recovery of a single file or set of files when they are accidentally deleted or corrupted by the user or a program.
- Recovery Point Objective (RPO) is the point in time that the restarted infrastructure will reflect. Essentially, this is the roll-back that will be experienced as a result of the recovery. Reducing RPO requires increasing synchronicity or frequency of copying the data to be protected.
- Backup Window is the amount of time that taken to copy a given data set to the backup device. Most traditional backup systems require a data set to be frozen for hours while the entire content of a filesystem is copied to magnetic tape. Newer techniques use a mirror or snapshot of a set of data as the backup source, effectively reducing the required backup window.
- Restore Time is the amount of time required to bring a desired data set back from the backup media.
- Retention Time is the amount of time in which a given set of data will remain available for restore. Some backup products rely on daily copies of data and measure retention in terms of days. Others retain a number of copies of data changes regardless of the amount of time.
A backup is only as useful as its associated recovery strategy. Having a complete set of backup tapes is of no use if the only copy of the software required to read them is on one of the tapes. It is also possible for backup software to run successfully for several months, only to fail when it is needed most due to read errors on the backup media. Magnetic tapes in particular should be read-tested on a regular basis.
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Solutions for mobile executives. Notebook Shadow is a fast, comprehensive backup and synchronization utility designed to protect and share valuable corporate data stored on servers, desktop PCs and vulnerable laptop PCs. 60 day free trial.
Aid System Restorer
Windows system backup and restore tool that uses two predefined store methods. Store all Windows files or store hard drive containment. An MS-DOS system restoration module has been created to provide fast system restoration after Windows crash. (Win 95/98/Me/NT/2000)
FoldersSynchronizer official page. Synchronizes and backups folders and disks for the Macintosh.
BlackBoard Software Inc.
Intelli-Bak is a replacement for the backup utility that comes with IOMega ZIP and Jazz drives.
Complete AIX backup and installation management software for IBM RS6000 and SP systems.
Automated backup and recovery software that provides the most comprehensive solution for data protection of TSM/ADSM enterprise business data.
St. Bernard Software
Offers a wide range of solutions for IT professionals. OFM prevents skipped or corrupted open files during backups.
Automatic file replication and backup software provides data protection and disaster recovery, file sharing, and web content synchronization.
Provides and supports server redundancy solutions such as server mirror, server mirroring, real time data replication with automatic failover, server shadowing or loose clustering for high availability, fault tolerance and disaster recovery with online system backup and online maintenance for major platforms.
Second Copy 2000
Copies files and folders from one location to another on the same drive, another drive or across the network. Features include synchronization, compression and disk spanning. Support for removable drives.
Mainframe Dataset backup and recovery Software. Current offerings include ReMember, Source PDS backup and restore utility, and FX2000 high speed VSAM and IAM file backup and restore utility.
Develop ease to use backup solution with national language, email and encryption support for Windows 95, 98, NT, 2000. Web based storage also available.
Harbor Backup is a client server solution for backup, recovery, archive, retrieval and automated disaster recovery. Simple point and click recovery.
Rescue Me allows easily and safely back up and restore to files. Supports floppy, Jaz, and ZIP drives. [Win 95/98]
Back Again II Workstation
High performance backup software for Windows NT and Windows 2000 workstation systems. Support for most SCSI and ATAPI/IDE tape drives, in addition to floppy diskette, ZIP, Jaz, Syquest, and other removable drives. By CDS Inc.
Drive Image Pro
Provides IT professionals with powerful cloning tools. With TaskBuilder's user friendly interface it's easy to create scripts for use within any framework. Supports CD-R and CD-R/W. Supports Windows 95/98/2000/NT 4.0 Workstation, or DOS.
Elantra pty ltd
CMS Automatic Backup System (ABS) provides a complete solution for notebook and desktop PC Backup.
Clonecd Backup Utility
Discussions about cloning cds including playstation games and how to make working copies of any CD, whether or not it is copy-protected with a cd key or serial.
Complete backup and zipping solution between any local, network, or removable drive.
Automate and simplify the task of backing up workstation and server data before replacing workstations or reinstalling windows.
Secure TCP/IP-based file synchronization, backup utility that works between home, and office computers automatically via the Internet through cable, DSL, or dial-up. Software is written in Java and works in Windows 95/98/Me/NT/2000 as well as Unix, Linux and Mac. By Diasoft Corp.
Future Systems Solutions
Drive2Drive allows you to easily copy an entire hard disk or partition to another hard disk within the Windows 95, 98 environment.
ICQ Backup backs up your ICQ 98 and 99 or 2000 files.
Home of Shadow a backup and synchronization utility which allows you to back up folders, volumes, and disks. Shareware for Windows 95 and 98.
A file archiving, restoring and searching utility that works with Zip drives, hard drives, or any device located on the Internet.
Maximum Output Software can back up any file on any disk or network drive to any other disk or network drive in Windows 95, 98 or NT.
Backup Scheduler 98
Schedules and starts an unattended backup job using Microsoft Window 98's included Backup and Scheduled Tasks utilities. Requires MS Windows 98.
Double Image is disk backup software with ability to copy open files. Network backup is also a feature. Only files that have changed, are copied. Removable drives can be the source and the target.
FolderWatch Home page
Allows you to monitor any changes to selected folders, and back up files in those folders. Set FolderWatch to monitor changes made to multiple folders, or only selected files within these folders.
Island Codeworks Internet Backup, an online data protection system that automatically backs up small businesses' data to an offsite location via FTP. Data security is ensured through encryption.
NewTech Infosystems, Inc.
Global developer of digital media software, including CD-Maker 2000, 'Backup NOW' the total backup solution for a CD-R/RW drive. 'Drive Backup' backup and restore program for your CD-R/RW drive.
Cross-platform CDs for Microsoft Windows, Unix and Macintosh using a drag and drop interface. It creates an ISO image that can be recorded with most CDR/CDRW software. The software runs on most operating systems and supports multiple languages.
Techsoft Pvt. Ltd.
Backup utility for automatic and real-time mirroring of folders on CD-RW, ZIP drive, and removable/floppy/network/local hard disks. Integrated with Windows shell and designed for laptop/desktop computers in home and corporate environment. [Win 95/98/ME]
Spiralcom Communications Inc.
WinTAR-Remote is a utility for working with TAR files and backing up and restoring files on Unix remote tape drives located across a TCP/IP network.
UniTrends Software Corporation
Developers of Business Critical Backup and recovery software, products include Backup Professional, PC ParaChute, CTAR, and Crash Recovery Solutions. Tech support and White papers.
Real-time and schedule-based file replication and synchronization to copy and backup files over LAN, WAN, FTP, and Internet connections. Operates on a Windows platform, but can synchronize Unix, Linux, and Netware servers visible to the operating system.
BakBone Software Inc.
Develops and globally distributes high performance software solutions to the NAS and SAN storage environments. Backup and restore software suites provide scalable data protection. Support for all major operating systems (UNIX, Linux, NT), network storage topologies and protocols (NAS, SAN, IP Storage, NDMP, SoIP), and all major enterprise applications (Oracle, SAP, DB2, Lotus, and SQL).
QStar Technologies, Inc.
Offering storage management software for optical, tape, CD(R/ROM) and DVD(RAM R/ROM) jukeboxes. Company offers HSM (Hiearchial Storage Management) software as well as disaster recovery based mirroring software.
Open source, enterprise grade, perl based system for backing up Linux and Windows desktop PCs and laptops to a server's disk. Runs on Unix/Linux servers with Unix/Linux and Windows 9x/NT/2K/XP+ clients.
A disk image utility that can open, create, and extract ISO files. In addition, it can create disk images of hard, floppy and removable drives.
FolderClone Automated Folder Mirroring Software
Make an identical copy of a folder tree from one drive to another. It can be used to synchronize files between a desktop computer and a laptop, or replicate data between a workstation and a server.
Yosemite Technologies, Inc. - TapeWare
Backup management software for Windows, UNIX, Linux, and NetWare servers. Web-based interface available and supports multiple languages.
Tape backup solutions for Windows 2000/NT, Linux and NetWare network tape backup. NovaBACKUP automatically backs up your computer to just about any tape drive, disk, removable, CD-R/RW, or DVD drive.
This utility allows daily backups to be performed automatically just after Windows has started can also be used with task scheduler.
Back up and recovery system for Windows. Create backup profiles that target any file or folder on the computer. Recover data loss by one-button backups and restore.
Automates Windows NT network file and data replication and distribution tasks, via FTP, dial-up or copy functions. Create redundant servers and update remote computers to ensure data integrity and availability.
Resources for backup solutions and data recovery, covering most all OS systems. Download a free 30 day trial of EaseBackup. Free Tech Support Forums.
Make CD-ROM Recovery (mkCDrec)
Makes a bootable (El Torito) disaster recovery image (CDrec.iso), including backups of the Linux system to the same CD-ROM if space permits, or to a multi-volume CD-ROM set.
Windows 95/98/NT/2000/ME shareware from Avantrix Inc. Easy to use, backups to all types of removable media.
Windows95/98 or NT shareware with compression, automated backups, and advanced archiving, from BlackBoard software.
Specializing in Data Management Software for Windows, UNIX, HP3000 systems. Product include UltraBac, UNiBACK, HP 3000 tools.
Multi-platform network backup. Backup files across different Operating systems such as Windows, Linux and others. No special devices, no proprietary formats.
GRSoftware fast professional Windows backup software with zip (pkzip) compression. Free evaluation version download. Support Iomega Zip100 Jaz Syquest EzFlyer Imation LS120.
PC backup and self repair software. Desktop, laptop, remote backup, automatic application and system repair. Data recovery, replicate exact user lost or crash system, PC upgrade and field swap with all user data. eService and enterprise software.
Backup software program for Windows 95/98/ME/NT/2000/XP. It supports both manual and automatic data backup.
Product independent site that provides free storage, backup and recovery resources, and utilities, scripts, tips and FAQs for commercial backup software.
Backup package that allows files to be backed up between different storage devices: hard drives, network drives, and removable media from Duncan Amplification. Ability to load and save backup profiles. [Win 95+/98/ME/2000/NT 4.0]
IMdrive will restore, convert and duplicate data from a wide range of standard and proprietary magnetic tape formats. Handles IBM, 3590, Unix, DAT and others.
Symantec Ghost 6.5 Enterprise Edition
Handles the entire backup process, including the partitioning and formatting needed before reinstall can be carried out. Can restore individual files, selected directories, or entire hard drives as needed. For Windows 9.x/NT 4.0/Win2000.
Offering data backup software for Unix and Windows network systems. Centralized data storage, data recovery software and network backup devices.
Higher Ground Software Inc.
Disaster recovery and disk drive rebuilding software also provides quality utility software for file recovery, virus protection software, and hard drive diagnostic software.
LC Technology International, Inc.
Company offers data and file recovery software for all Windows operating systems.
Guide to Norton Ghost on creating and restoring images.
An easy to use yet powerful backup program from EtalonSoft that makes your backups quick and reliable. Included version control feature allows you to restore your data back to a previously working version.
CD burning application, which is suitable for both beginners and power users. Various writing modes including TAO, SAO, DAO, RAW-DAO, with Real-time MP3 conversion and supports 11 methods of copy protection. Download full version free 30-day trial.
Information regarding backup software for backing up many operating systems and applications. NetVault allows LAN-free backups for non-SAN environments.
CSS Quick Backup
Windows backup and restore utility with full Explorer integration.
Provider of restore, archiving and backup software. Professional solutions for SAN backup, NAS Backup, and Linux backup with Time Navigator.
Backup utility for Windows, supports removable drives such as Zip, MO, and CD-RW, stores backup data in zip archives.
Active Backup Expert
Backup utility that creates backup copies of files as well as synchronize them on two or more PCs. Store the backups in ZIP format, use exact file names or wildcard masks. Available in two editions: Standard and Professional.
Data Backup and Synchronization Tool
SmartBackup copies files and folders from one location to another on the same drive, another drive, or across the network. Set up projects that describe the source location, the destination location, and the frequency to copy the files.
Backup utility features backup of E-mail messages, ICQ, MSN, AIM, and Windows settings. Free trial download.
Offers complete drive data management solutions. Provides backup, restore, cloning and data migration (upgrade) to new hard drive, removable and CDRW drives. Partition and format tools and Flash media readers like compact flash, memory stick, smart media, secure digital, multimedia card and all in one readers.
Backup and restore utility for Windows. Backup files to floppy disks, hard drive, network drives, Zip drives, SyQuest and most other removable devices. The program supports several types of backups, including simple copy, simple move or deleting of old, out of date files and backup files to zip-archive.
Xceed Backup Library
An ActiveX control that allows Windows applications to automatically perform their own backup and restore operations. Backup files to floppy disks, hard drives, network drives, writable CDs and any other random access removable media your users may have, like "ZIP" disks or SuperDisks.
Automatically backs up your vital Windows 95 or 98 system and configuration files. By duplicating the files as well as of main system files.
BackupOnDemand runs in the background and monitors important files for changes, and within seconds, modified files are backed up to an archive location. Supported platforms Win95/98/Me/NT/2000/XP.
File Backup Watcher
The program can backup data on HDD, floppy, ZIP, CD-RW and has a comfortable scheduler. Also, has opportunity to work through the network. Two versions are available Professional and Home Edition.
SuperCool ZIP Backup
File backup utility. It can store backup copies in the standard ZIP format with password protection. It supports inclusion and exclusion of files by wildcard mask as well as by exact file name. [Windows 98/Me/NT/2000/XP]
Provides protection for important files and folders by making unattended timed backups to a second hard drive, network drive or removable drive.
OpenITx: Backup Discussion Group
Discussion group provides IT executives, managers, and professionals with a forum for discussing the appropriate selection of backup and recovery utilities.
Zip Backup to CD
Designed to backup your data files using the standard Zip file format, allowing backup files to be viewed and restored with most zip file utilities. Build in scheduler supporting unattended auto-backup.
Data backup and recovery. Offers fast system recovery, point and click restore option. Allows 100 backup files of the system registry, automatic scan memory function that monitors for possible file updates. [Windows 95/98/ME]
Backup important data to another folder or any type of removable media including floppy disk, ZIP, JAZ, MO, CDR/CDRW media and others. [Windows 9x/ME/NT/2000/XP]
Enterprise Backup Solutions
Distributes Tanita NSM Enterprise Backup Software solutions for Mainframe and Cross-platform. Provides scheduled backup/restore and archive/retrieve operations, at both the client system and data center levels.
File archiver with a high compression ratio. Interface integrates with Explorer. Supported formats: 7z, ZIP, CAB, RAR, ARJ, GZIP, BZIP2, TAR, CPIO and RPM. Free software distributed under the GNU LGPL.
File Genie 2000
A Windows friendly shareware data and file backup utility that allows users to save files automatically or manually with a few mouse clicks.
Pocket PC backup and cloning solutions.
Backup system and custom files in Windows.
Giltam Software Inc.
Backup software for the small business. Enabling the backup of information from the business computer and save it to the home computer, using the Internet.
Plug and Play backup-restore tool that fully automates the PC backup process and helps in disaster recovery. Product specifications, and downloads.
System Backup and Recovery for AIX - SysBack is a service offering of IBM Global Services for AIX customers that provides the ability to easily backup and recover system data.
Backup Windows, Office, Outlook, Internet Explorer custom settings and profile, such as mail, contacts, address books, mouse and sound schemes, favorites, and news folders. Downloads, FAQs, newsletter, and contact information.
XOsoft Backup and Recovery Solution
Provider of high availability and disaster recovery solutions, has developed the WANSync product suite to provide real-time replication and synchronization of files, applications and databases over WAN.
Compare & Backup
Backup software that allows one to compare source with destination before backup. FAQs, screenshots, download, and purchase.
Generate unique file names in batch files based on date and time, for generational archiving storage of important data files. Archive hourly, daily or monthly.
Schedule automatic backup to CDRW or any disk automatically. It will backup and restore files, folders and emails.
Command line Win95/98/NT freeware providing file-copy, sync, search, list, delete functions with versatile file match, exclusion and selection mechanisms. Logical Extension to XCOPY.
DuoCor Canada Inc.
Restore crashed systems with XactCopy. From within your existing backup and restore framework. Simplifies the system recovery, reduces data loss.
Event Manager Professional - Backup Properties
All in one backup, file transfer and automation.
Easy and fast detection, backup and restores of all hardware device drivers currently on a system. Also, will find the latest drivers for hardware and install them onto the computer.
Data Recovery specialists are pioneers in developing Crash Proof data loss prevention software, and Quick Recovery post crash data recovery software.
Program that can simply and effectively backup data, files and folders. Archives are compressed and saved in ZIP file format.
Computer Data Strategies, Inc.
CDS, Inc. develops backup and recovery software for Windows 95, Windows 98, Windows NT/2000, and OS/2 Warp.
Clone Backup Utility
Backup utility that can used as a screen saver. Easy to configure and run.
Back up daily work in Windows by zipping files on shutdown or logout. Features two types of backups a complete backup processes, an incremental backup to processes the changed or newly created files.
Backup utility for save every file changes.
Windows system backup, system restore utility, that can run in dos real-mode with long file names (LFN).
Simple Backup will zip or direct copy files from one location to another location automatically.