WHAT ARE BACKUPS? Backups are the last line of defense against hardware failure, floods or fires the damage caused by a security breach or just accidental.

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Presentation transcript:

WHAT ARE BACKUPS? Backups are the last line of defense against hardware failure, floods or fires the damage caused by a security breach or just accidental deletion of data. A copy of data that can be used to restore and recover the data is called a backup. Backups let us restore data after a failure.

WHY MAKE BACKUPS ? Backups protect you against many failures such as:  Hardware failure, for example,a damaged disk drive or permanent loss of a server.  Media failure.  Accidental file deletion.  Theft and natural disaster.  Catastrophic virus or spy ware infections, if we have to erase our hard disk and reinstall everything.

WHERE TO BACKUP OUR FILES ? The following are some storage devices and locations to consider.  External hard drive  CD  DVD  USB flash drive  Online backup and storage service

HOW TO BACK UP YOUR FILES? When we make backup copies of our information, a simple copy and paste works well. However today’s most operating systems also provide a backups of the data on the computer.

TYPES OF DATA BACKUPS. Backup is copied data kept at different places / media that can be used in case of emergency. There can be two forms of data backups:  FULL BACKUP  DIFFERENTIAL BACKUP

FULL BACKUP A full backup contains all the data in a specific database or set of file- groups or files and logs to allow for recovering that data.

DIFFERENTIAL BACKUP A differential backup is based on the full back of the data. This is known as the base of the differential, or the differential base. A differential backup contains only the data that has changed since the differential base. Differential backups that are taken fairly soon after the base of a full backup. Therefore, using differential backups can speed up the process of making frequent backups to decrease the risk of data loss. Full backup of a read /write data forms the differential base and the successive backups that store only the changed data after the full backup are known as differential backups.

ONLINE BACKUP Online backup is a type of offsite data backup. Any files or folders are backed up onto a remote server,or a network connection. In the event that we lose a file, we simply have to connect to the remote computer to restore it. In this way, we can access our data from any where in the world-making it very convenient for those who travel and business with many locations.

ADVANTAGES OF ONLINE DATA BACKUP There are many advantages, such as:  By having our data stored on a remote hard drive, we run little to no risk of losing our data as a result of fire, theft or any disaster.  Our data is safe; our computer encrypts our files before sending them, and files are secured with password protection  No hardware to maintain or repair the backup.

…advantages  Backups are done automatically, making our time more productive.  Offers more features than certain data backup software, such as remote data access and synchronising.  Data is available anywhere in the world at any time.

DONE BY : ANUJ. M DEVI. R GOPIKA A. S JHISHNU POORVISHA. C