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Backup | STORM Clouds Services

Roadmap about migration of public services into the cloud

A step by step roadmap for Public Authorities to help them as they plan, determine effort and budget, select the appropriate services, make the required internal organisational changes and finally execute the migration into cloud.


Backup is the process of making a secondary copy of data that can be restored to use if the primary copy (the production copy which is the official working copy of the data) becomes lost or unusable. Backups usually comprise a point-in-time copy of primary data taken on a repeated cycle – daily, monthly or weekly.

It is the most important means to keep the data from being lost due to intentional or unintentional access. It is also important to encrypt the up-to-date backups. Backup is easiest and the most familiar process for most situations. A backup copy is used to recover data needed to restart an application correctly.

Backup may be required in the following scenarios:

  • Logical corruption. That can happen due to application software bugs, storage software bugs or hardware failure, such as a server crash.
  • User error. Where an end user may accidentally or intentionally delete a file or directory, a set of emails or even records from an application.
  • Hardware failure. In the form of hard disk drive (HDD) or flash drive failure, server failure or storage array failure.
  • Hardware loss. Possibly the worst case scenario where an event such as a fire results in hardware being inoperable and permanently unrecoverable.

The following backup service levels exist:

  1. Recovery Point Objective (RPO).
  2. Recovery Time Objective (RTO)