Database Reference
In-Depth Information
Understanding backups
Systems that deal with information or data, whether standalone or distributed, have to plan
for disasters and complete system failures. Configuring and setting up backup policies for
systems is an integral part of any disaster recovery plan. A backup is a copy of the data in
use, which is also sometimes referred to as an archive. In the case of failures leading to
data loss, the copy is used to restore data.
Backups, depending on the days of retention, demand vast amount of data storage.
However, in the case of data storage media used for backups, the read and write speeds are
not of much importance. Organizations procure more reliable storage media and do not
worry about the read/write speeds as data from backup storage media is only read from in
the case of disasters.
