| Differential backup and incremental backup utility |
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Handy Backup English
Differential Backup
Daily backups often cost a lot. The technology of differential backup employed in Handy Backup greatly reduces time and storage space required for your backups by saving only changes, on byte level.
Handy Backup saves your money by saving only the least modifications of your documents, e-mails, disk images or databases.
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How Differential Backup Works
Differential backup is a process of backing up only those files that were created or changed since the last full backup. For example, if you do a full backup on Sunday and then perform daily differential backups, then Friday's differential will contain all data that appeared or changed for the whole work week.
Difference Between Differential and Incremental Backup
The difference between differential and incremental backup is that the amount of data being backed up is calculated from full backup, rather than from previous backup. I.e. if you repeat two incremental backups without changing any files, the second backup will contain nothing, while two consequent differential backups will be identical.
Handy Backup supports both differential and incremental backup technologies. Learn about incremental backup...
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Fast Restoration
Another advantage of making differential backups is that it enables you to quickly restore data in case of a disaster. Unlike incremental backups which need to go through the entire chain from the last to the first backup, restoration of differential backups is done in two steps, using the most recent full and the most recent differential backup.
How It Works on Different Types of Data
Let's imagine some real-life examples how the technology of differential backups works in different situations:
- Files and folders. Say you need to back up a folder in which you change 2MB of data each day by editing 50 files with an average size of 1MB. Backing up all modified files will cost you 50MB of space daily. Differential backups can let you reduce this number to 2MB, then 4MB, then 6MB, increasing by no more than 2MB each day (because some of the files may be repeated).
- HDD images. For disk imaging differential backups also work effectively and allow saving a lot of drive space. However, calculation of a difference requires the program to create a complete drive snapshot (to compare it with existing backup) and therefore requires the corresponding amount of drive space for temporary use, which is often unsuitable for many users.
- Databases. Database backup is an area where differential backups turn out to be especially powerful. For example, a typical company's data retention plan requires administrators to back up Exchange Servers at least weekly. Instead of backing up tens of gigabytes of data each time, they can limit it to hundreds of megabytes and save only new correspondence that took place since the full backup.
To learn more about Handy Backup, please see the full list of Handy Backup features...
Handy Backup is the most effective guard for your PC data!
Seems to Be a Quality Backup Program
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Handy Backup is certified for Windows Vista! Handy Backup is suitable for MySQL backup Handy Backup can run in Linux under Wine
My Documents backup - one click backup of the 'My documents' folder including pics, videos, music, text files Website backup - most reliable solution to protect your business's web representation Disk Image Backup - back up your hard drive by creating a hard drive image and saving it to the storage medium MySQL backup - simple, comprehensive backup of the MySQL database tables ODBC Database Backup - back up any ODBC compatible databases including MySQL, Oracle, FoxPro, Interbase, MSSQL, DB2, MS Access, Postgre SQL etc.
Backup to DVD-R - record your backups to DVD-R with our in-built DVD burning tool Backup to CD-R - record your backups to CD-R using data encryption and compression with one click Backup USB - back up your data to any USB connected device such as USB flash key Backup to FTP - transfer your backups to remote FTP server for more data security Backup from FTP - back up data stored on a remote FTP server to your local computer or any removable storage medium
Backup with ZIP compression - backup with 10 levels of Zip compression saves storage space DVD backup verification - makes sure your data are restorable from DVD copy you made Synchronizing files and folders - one click synchronization of files and folders across multiple locations including remote FTP servers


