| Backup and Recovery | |||
| Important files of
data should be regularly backed up -
this means making another copy of
the data and storing the copy in a different place. Many organisations run a daily backup - scheduled to run overnight, but backups can be done any time. A backup of data 'records' the state of data at the time the backup was made.
|
|
||
| Backups may be stored on the same computer - but it is better to store them on a different one. | There is no point in storing the backup of important data on the same computer if that computer is stolen! | ||
|
Backups of data may also be stored on backing
storage media such as CD,
DVD or tape
cartridge.
|
|||
|
|
Small files may be copied to a memory stick or storage card. |
||
|
The backup copies should be stored securely
- a locked room or a fire-proof safe. As broadband Internet access becomes more widespread, backups to remote sites are becoming more popular. Possible problems are speed (transmission over the Internet can be quite slow) and trusting someone else with your important data files may not be a good idea.
|
|||
|
Recovery If data is accidentally or deliberately lost or damaged, the backup data should be loaded. All changes to the data since the backup was made will need to be done again.
|
|||
