An Introduction to Tape Backup - Different types of...
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5. Different types of backup
Different types of backups are available in backup software.
Full - all files, system data
Differential - all files added or changed since the last full backup
Incremental - all files added or changed since the last full, differential or incremental backup
Daily - all files added or changed on the day of the backup
A Full backup will copy all files and system data to the backup media. It allows for the complete restore of all data from one single tape.
Differential, Incremental and Daily are partial backups are designed to reduce amount of data backed-up to the media, resulting in faster backups. To restore data using one of these backups, the last Full backup tape will also be required, along with any other partial backups since the last Full backup.
6. Tape backup software
At this point you may be thinking that performing tape backup is a complex task. Tape rotations, incremental backups... sure, you can try to do this manually, but this would make the backup process hideously difficult and prone to human error! The solution is to invest in a good piece of server backup software that will manage and schedule your tape backups for you.
What should you look for in tape backup software? For many small business owners, the price is crucial. Many brands of backup software are just too expensive - in the $1000+ range - and contain features that you'll never need.
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