An Overview of Backup

by Dan

Back up or the process of backing up refers to copying or archiving of data for later usage. It may also refer to data redundancy. Back up is essential in order to retrieve the data in case of data lose or data deletion or corruption, as it is a common problem faced by everyone nowadays.

Backup has 2 distinct purposes. The primary purpose is to recover data in case of loss, deletion or corruption of data. It is found that about 60{71b550cbed0aca3fea2335d26076176dc834a5ad6e765af844b2cea64fe7483b} (approximately) of the people have suffered from data loss in the survey in 2008. The secondary purpose is to recover data from an earlier time. All though back up refers to disaster recovery, it should not only be considered as a disaster recovery plan. The reason for it is that not all backup systems or applications are able to reconstitute a computer system. Using software’s to clone operating system can be very useful to restore from a boot failure or any other problem that may stop the OS from functioning normally.

backup

Although backup is only a copy of the data it will still need large storage requirements. Back up need not be stored in the internal memory always, there are many other options like secondary storage (usb, cd, DVD, etc). Before the backup data are stored they can be manipulated, retrieved, and modified as desired. Software’s like EaseUS Todo Backup download is a must have for all the PC users to backup and recovery easily. Few versions are also free and easy to use, while some extended features are paid ones.

Storage

Storage is the base of backup.as mentioned above it can be done in different ways. One way is usingdata repository models.Any backup strategy starts with the concept of data repository, Data repository is a logical partitioning of data where multiple databases which apply to specific application or sets of application reside.

The data needs to be stored and also organised to some extent. It can be organised in a simple manner i.e. just copying and storing it or in a more sophisticated manner like in a database.The other common way is storage medium. It can also be stored in a portable medium like magnetic tapes, hard disk, optical storage, floppy disk (floppy disks are no longer used due to the extensive use of DVDs and usb).

Risks of retaining backup copies

Some agencies may assume that retaining records on backup tapes or other storage medium meets their responsibility to maintain digital records over time. Backups may not only contain mere data but also apps and operating systems.

Prolonged retention of backups may pose additional risks. Information in backup systems is discoverable in the event of litigation. If backups are retained for long period, records previously destroyed may still be discoverable.

Agencies should be aware that under the new provisions of the right to information act 2010, agencies may be required to search  for a document that is otherwise considered to be unloaded or non-existent if it is. A record that is required to be kept under The Archives Act 1983,has not been lawfully disposed of under The Archives Act 1983, andIt is likely that the required document has been kept in, and is retrievable from, the backup system.

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