Understanding business continuity (6.2)
In this digital age, as a system administrator, you must understand the fact that all downtime means a loss of profit for the company. So, it is your primary responsibility to minimize downtime as much as possible. That is achieved through proper assessment of the components that have the potential to fail and undertaking the appropriate measures to avoid that.
Backup and restore (6.2.1)
It is hard to think of a server with lost data. To avoid such situations, backups are usually made for making a copy of data in case the original data is lost. In addition to a backup, a restore is the process of data recovery whenever data on a server is lost or corrupted. The following types of backups can be made:
- Full backup: It makes a copy of all of the data. To restore data, you need only the last set of full backups.
- Incremental backup: It makes a copy of the data that has changed since the last backup, regardless of the type. Usually, from Monday to Thursday,...
