Insights
Backup
Data protection supports continuity of work.
Documents, archives, configurations, virtual machines, databases and operational information require protection, retention and recovery criteria that match the way the organisation works.
Planning components
What to protect
Data and services may have different priorities. Planning identifies what must be protected and which resources need to become available first when recovery is required.
Recovery
Backup planning begins long before the first copy is made.
Before choosing tools and technologies, it is necessary to establish how much work can be lost and how long a service can remain unavailable without compromising operations.
Where to keep copies
Copies can be distributed across dedicated devices, different systems and geographically separate locations. Their placement is defined according to the value of the data, recovery times and the required level of protection.
Offsite Backup
Keeping a copy of the data at a different location reduces the risk that a single event compromises both the primary infrastructure and the resources needed for recovery.
Synchronisation methods and update frequency are defined according to business-continuity objectives.
Offline Backup
A permanently connected copy can be affected by the same events that impact the primary system.
Offline or otherwise unreachable copies add another layer of protection against errors, accidental deletion and cyberattacks.
Versioning
Keeping multiple versions of the same data makes it possible to recover files that were changed or deleted accidentally and to return to an earlier point when needed.
Automation
Automated copies reduce dependence on manual operations. Frequency, execution methods and retention criteria are configured around operational requirements.
Backup verification
The existence of a backup does not automatically guarantee that it can be used.
Periodic checks and recovery tests help identify anomalies before data recovery becomes necessary.
Business continuity
An offsite backup infrastructure can be designed to temporarily take over the role of the primary system when the main site is unavailable, keeping the data and services needed for work accessible.
When the primary system becomes available again, the data produced while the secondary system was active is resynchronised before returning to the original configuration. Continuity therefore includes both the ability to restart and the ability to return to normal without losing work performed during the emergency.
Monitoring
Errors, incomplete copies, unavailable devices or anomalies need to be detected promptly, before recovery becomes necessary.
Documentation
Configurations, recovery procedures and operational responsibilities need to be documented and kept up to date, so recovery remains understandable and repeatable over time.
A design reference
The 3-2-1-1-0 rule
A reference model that helps distribute copies and reduce the possibility that a single event compromises both original data and protection systems.
A complete project or a specific need
Backup planning can accompany a new infrastructure or be integrated into existing systems.
The work can cover the entire data-protection process or a single aspect: reorganising copies, introducing an offsite or offline system, verifying recovery procedures or developing a business-continuity project.