Quick definition: What each model means

Self-managed backup means your IT team installs and operates backup software, manages storage, performs restores and handles upgrades.

Managed cloud backup means a provider runs the backup service for you: agent updates, storage, monitoring, support and most operational tasks are handled by the vendor.

Side-by-side comparison: self-managed vs managed cloud backup pros and cons

Costs

• Self-managed — Pros: Potentially lower recurring vendor fees if you already own infrastructure and staff; more control over long-term costs.
• Self-managed — Cons: Higher up-front and hidden costs: staff time, training, software licenses, storage procurement, networking and backups testing.
• Managed — Pros: Predictable operating expense, bundled support and updates, less need for specialised staff. AgooCloud, for example, uses a simple storage-based billing model.
• Managed — Cons: Ongoing subscription fees and possible extra charges for restores, egress or advanced features.

Complexity & operational effort

• Self-managed — Pros: Full control of backup policies, scheduling and integration with internal tooling.
• Self-managed — Cons: Requires dedicated time for setup, monitoring, troubleshooting and upgrades. Risk of configuration drift and missed backups.
• Managed — Pros: Vendor handles monitoring, updates and incident response. Good for small teams or businesses that prefer to outsource day-to-day operations.
• Managed — Cons: Less control over timing of upgrades and sometimes limited customization compared with a self-managed stack.

Security & compliance

• Self-managed — Pros: You control encryption keys, network isolation and access controls. Easier to meet bespoke compliance requirements when you are in charge of all layers.
• Self-managed — Cons: Security depends on your team’s expertise; misconfiguration is a common risk.
• Managed — Pros: Managed providers typically offer hardened environments, automated patching and security expertise. Look for providers offering bring-your-own-encryption-key options.
• Managed — Cons: You must trust the provider’s controls and processes. Verify contractual obligations (see our Data Processing Agreement (DPA)) and encryption options before committing.

Scalability & performance

• Self-managed — Pros: Tunable for high-performance workloads and local network optimisation.
• Self-managed — Cons: Scaling storage and bandwidth can be slow and expensive.
• Managed — Pros: Cloud providers scale storage and throughput on demand, simplifying growth.
• Managed — Cons: Performance depends on provider SLAs and your internet connection.

On-premise backup vs cloud backup for small business

Small businesses often ask whether to keep backups on-premise or move to cloud-managed backups. On-premise gives low-latency restores and keeps data under local control, but it requires hardware, maintenance and offsite replication to avoid local disasters.

Cloud backup reduces hardware costs and provides geographic redundancy. For many small businesses, a managed cloud backup gives the best balance of protection and low operational overhead. For guidance tailored to small companies, see our article Backup for Small Business.

How to migrate backups to a new provider

Moving backups is one of the biggest operational risks. Follow these steps to reduce disruption:

1. Inventory current backups: types, retention, encryption, metadata and dependencies.
2. Export configuration and metadata where possible (catalogs, indexes).
3. Confirm encryption keys and access: if you use a provider-managed key, request a key handover or plan for re-encryption. If you use BYOK, ensure you retain control of the key.
4. Perform a staged copy: seed initial full backups to the new provider (physical seed devices can help with large datasets).
5. Run parallel backups for an overlap period and validate restores from the new provider.
6. Decommission the old system only after successful, audited restores and metadata verification.
7. Document the migration and update runbooks. Consider letting the new provider assist—managed services often include migration help.

If you need assistance, contact AgooCloud support for migration options and recommendations.

Bring-your-own-encryption-key backup providers: what to check

BYOK gives you control over encryption but requires careful key lifecycle management. When evaluating BYOK options:

• Confirm whether the provider supports hardware security modules (HSMs) or KMS integration.
• Check key custody models and whether the provider can access or revoke keys.
• Ask about key rotation, backup of keys, and recovery procedures if keys are lost.
• Verify how keys are used for metadata and index encryption (not just object storage).

Always get BYOK details in writing and include them in your DPA and security assessment.

Backup client CPU and memory requirements

Agent resource use varies by vendor and workload. Typical guidance:

• Lightweight file-level agents: 50–200 MB RAM and minimal CPU when idle; short spikes during scan and upload.
• System-image or VM agents: 200–1024+ MB RAM depending on deduplication and compression.
• Database or application-aware agents: may need more CPU during snapshot creation and consistent quiescing.

Plan for peak usage windows, bandwidth throttling and schedule heavy tasks outside business hours. Always check vendor-specific documentation for exact backup client CPU and memory requirements.

Decision checklist: which model suits you?

• Choose self-managed if you have internal security expertise, strict compliance needs that require full control, and capacity to operate infrastructure.
• Choose managed if you want predictable OPEX, reduced operational burden and vendor expertise for monitoring, upgrades and restores.
• Consider hybrid: local snapshots for fast restores + managed cloud for long-term retention and offsite protection.