Why Every Business Needs Backup and Disaster Recovery
A backup is useful only when the business can restore the data and services it needs. Hardware failure, accidental deletion, ransomware, compromised administrator accounts and provider outages can all interrupt operations. Backup protects copies of information; disaster recovery describes how the organisation restores technology and resumes work. Both need planning, ownership and regular testing.
Understand RPO and RTO
Recovery Point Objective (RPO) describes the amount of recent data the business can afford to lose. Recovery Time Objective (RTO) describes how long a service can remain unavailable before the impact becomes unacceptable. These targets should come from business requirements.
For example, a system that processes transactions throughout the day may need more frequent protection than an archive that changes once a week. A customer-facing service may need a shorter recovery time than an internal reporting tool. Do not set aggressive targets without checking the cost and technical feasibility.
Identify what must be protected
Include more than documents. Critical information may include databases, shared files, virtual machines, application uploads, email, identity configuration, network equipment settings, certificates, encryption keys and application configuration. Some services need application-aware backups or database-native exports to ensure consistency.
Record the owner, backup method, frequency, retention, storage location and restore procedure for each system. If a service cannot be rebuilt without a licence key or configuration file, include that dependency in the recovery plan.
Use multiple protected copies
A common design principle is to maintain multiple copies on different types of storage, with at least one copy separated from ordinary production access. The exact design depends on risk, data volume and recovery needs. Consider offline or immutable copies where appropriate, separate backup credentials and restricted deletion permissions.
Snapshots and replication can help with operational recovery, but they may copy accidental deletion or malicious changes. They should not be treated as the only backup. Keep a separate recovery path and understand the provider’s retention and deletion behaviour.
Monitor backup jobs and storage
Review failed jobs, missed schedules, repository capacity, retention and unusual changes in backup volume. A backup system that silently stops protecting new data can create a false sense of safety. Alert a named owner and define how quickly failures must be investigated.
Test restoration, not just backup completion
Perform file-level restores and full application or virtual-machine recovery tests. Restore into an isolated environment where possible. Verify that permissions, database consistency, application services, DNS and authentication work as expected. Record the time required and any missing dependencies.
| Test | What it proves |
|---|---|
| Single-file restore | Users can recover accidentally deleted information |
| Database restore | Data can be recovered consistently |
| Full VM restore | Operating system and service can start in a recovery location |
| Credential recovery | Administrators can access backups during an incident |
| Business workflow test | Staff can complete the critical task after recovery |
Write a disaster recovery runbook
Document who declares an incident, who contacts suppliers, which services are restored first and how users are informed. Include recovery contacts, system dependencies, backup locations, secure credential access and decision points for switching to an alternative service.
Prioritise identity, DNS, network connectivity and other shared dependencies before applications that rely on them. Keep a copy of the runbook somewhere accessible if the normal email or file platform is unavailable.
Plan for ransomware and compromised accounts
Assume that production credentials may be compromised. Separate backup administration from everyday domain or cloud administration, enable MFA, restrict deletion rights and monitor unusual backup activity. During an incident, preserve evidence and follow an agreed response plan rather than immediately reconnecting potentially compromised systems.
Review the plan after changes
New applications, acquisitions, cloud migrations and staff changes can invalidate old recovery instructions. Review the backup scope and contact list after significant changes and schedule a full exercise at a frequency appropriate to business risk.
Frequently asked questions
Are cloud backups automatically safe?
No. Check access controls, retention, independent copies, deletion protection, data location and restore options. Cloud storage is a location, not a complete recovery strategy.
How often should restores be tested?
Test critical systems regularly and after significant backup or application changes. The frequency should reflect how much data and downtime the business can tolerate.
Does RAID replace backup?
No. RAID can maintain availability through certain disk failures, but it does not protect against deletion, malware, corruption or site loss.
How SmartSite can help
SmartSite helps organisations across Ireland review server and cloud backups, recovery objectives, monitoring and infrastructure documentation. Explore server and cloud services or discuss a recovery plan.
Example recovery exercise
Choose one important service and run a controlled exercise. Ask the service owner to describe the impact of an outage, then restore the service into an isolated test environment using the documented backup. Record the time from starting recovery to successful user-level testing. Check whether the required credentials, encryption keys, DNS settings and application dependencies were available.
Compare the result with the agreed RTO and RPO. If recovery takes longer than expected, identify the cause: slow data transfer, missing documentation, unavailable credentials, insufficient capacity or an untested application dependency. Assign actions and repeat the exercise after improvements.
Keep evidence of recoverability
Store the date, scope, backup reference, systems restored, test results, issues and sign-off. Evidence helps management understand whether the recovery plan is realistic and demonstrates that backup controls are being checked rather than assumed.
Assign recovery roles before an incident
Name the person who can declare a major incident, the technical contacts who perform recovery, the business owner who confirms application readiness and the person who communicates with staff or customers. Make sure more than one authorised person can access critical recovery instructions. Store supplier escalation details outside the system that may become unavailable.
After an exercise or real incident, hold a short review. Record what worked, what delayed recovery and which procedure needs updating. The purpose is to improve the plan, not to assign blame.
Include people and communications in the recovery plan
Technical restoration is only one part of returning to normal operations. Staff may need temporary access to files, an alternative way to contact customers or a manual process while a system is unavailable. Identify which business processes can continue, who approves temporary workarounds and how data created during an outage will be reconciled later. Include these decisions in the exercise and update the plan when business processes change.