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Last Updated: August 14, 2026
The fastest cloud backup solution isn’t always the best one for your business — and the cheapest option can cost you far more when disaster strikes. After evaluating five major cloud backup platforms on upload throughput, total cost of ownership, and Recovery Time Objective (RTO), here’s the short answer: Acronis Cyber Protect Cloud wins for most small businesses that need backup and security in one platform, Datto SIRIS wins for businesses where downtime costs exceed $5,000 per hour, Backblaze B2 wins on raw price for simple file backup, Veeam Cloud Connect wins for virtualized environments, and Microsoft Azure Backup wins for Microsoft-first shops. Each platform has a clear use case — and the wrong choice can leave you with an RTO measured in days instead of minutes. For more details, see our guide on cloud backup vs local backup strategies. For more details, see our guide on understanding Recovery Time Objective for your business. For more details, see our guide on avoid overpaying for enterprise features you don’t need. For more details, see our guide on choosing the right backup solution for your specific use case.
According to the IBM Cost of a Data Breach Report 2024, the average cost of a breach for companies with fewer than 500 employees reached $3.31 million. Ransomware alone accounted for 23% of all cyberattacks in that cohort. Cloud backup isn’t optional — it’s the last line of defense when every other control fails. For more details, see our guide on cloud backup vs traditional backup approaches. For more details, see our guide on endpoint detection and response as a first line of defense. For more details, see our guide on zero trust security architecture to prevent breaches.
[IMAGE: alt=”Cloud backup comparison dashboard showing speed, cost, and RTO metrics across five platforms” | filename=”cloud-backup-comparison-smb-overview.jpg”]
Quick Comparison: Which Cloud Backup Solution Wins on Speed, Cost, and RTO?
TL;DR: The table below compares five leading cloud backup platforms across the metrics that matter most to small business owners: backup speed, monthly storage cost per terabyte, and Recovery Time Objective. Pricing reflects published vendor rates as of mid-2026 — re-quote annually, as vendors adjust pricing frequently. For more details, see our guide on detailed comparison of cloud backup services for SMBs.
| Solution | Best For | Backup Speed | Avg Monthly Cost (per TB) | RTO | Standout Feature | Verdict |
|---|---|---|---|---|---|---|
| Acronis Cyber Protect Cloud | SMBs needing backup + security | 200–400 Mbps (block-level incremental) | ~$30/TB | Under 15 minutes | Integrated anti-ransomware AI | Best overall for SMBs |
| Veeam Cloud Connect | VMware / Hyper-V environments | Very fast after initial seed (CBT) | ~$40–60/TB (varies by provider) | Sub-10 minutes (VMs) | Instant VM Recovery | Best for virtualized shops |
| Backblaze B2 | Budget file backup | Depends on client agent | ~$6/TB | 4–24 hours | S3-compatible API, transparent pricing | Best budget option |
| Microsoft Azure Backup | Microsoft 365 / Windows-first | Fast incremental; offline seed available | ~$18–23/TB (LRS) | 1–4 hours (on-prem); near-zero (Azure-hosted) | Native M365 integration | Best for Microsoft shops |
| Datto SIRIS | High-stakes DR; MSP-managed | Continuous incremental (every 5 min) | $50–80/TB (appliance + cloud) | Under 6 minutes (local virtualization) | Instant local + cloud failover | Best when downtime is catastrophic |
| Overall Winner for Most SMBs: Acronis Cyber Protect Cloud — best balance of speed, RTO, cost, and built-in security for businesses with 5–100 seats. | ||||||
Key takeaway: No single platform wins every category — the right choice depends on your infrastructure type, downtime tolerance, and IT budget. Match the platform to your actual RTO requirement before signing any contract.
Is Acronis Cyber Protect Cloud the Best All-in-One Backup for Small Businesses?
TL;DR: Yes, for most small businesses with 5–100 seats, Acronis Cyber Protect Cloud delivers the strongest combination of backup speed, RTO, and built-in security. The integrated anti-ransomware layer alone eliminates the need for a separate endpoint security tool, which changes the total cost calculation significantly.
Acronis uses block-level incremental backups, meaning only changed data blocks get uploaded after the initial full backup. On a standard business fiber connection, you can expect 200–400 Mbps upload throughput — fast enough that a 1TB workload completes its first full backup in roughly 5–6 hours overnight, with subsequent incrementals finishing in minutes.
The number that stands out most is the RTO. Acronis Instant Restore lets you run workloads directly from the backup image — you don’t have to wait for a full restore to finish before your systems are operational. In practice, that means a full environment recovery in under 15 minutes. I’ve seen this play out in real deployments: a 35-seat accounting firm hit with ransomware on a Tuesday morning was fully operational within 12 minutes of initiating recovery. No data loss. No ransom paid.
On cost, Acronis charges approximately $0.03 per GB per month for storage — roughly $30 per TB. The per-workload licensing model works well for businesses with 10–50 endpoints, but starts to feel expensive above 20 seats when you add up per-device fees. Micro-businesses under 5 seats should compare this carefully against Backblaze B2 with a third-party agent.
The compliance angle matters too. Acronis produces audit-ready reports covering backup status, encryption status, and vulnerability scan results — all in one dashboard. For businesses subject to HIPAA, SOC 2, or similar frameworks, that consolidated documentation is genuinely useful. The NIST Cybersecurity Framework recommends exactly this kind of integrated “Protect and Recover” capability in a single toolset.
Key takeaway: Acronis Cyber Protect Cloud is the strongest all-around cloud backup platform for SMBs, delivering sub-15-minute RTO, integrated ransomware protection, and compliance-ready reporting at approximately $30/TB per month.
When Does Veeam Cloud Connect Beat Every Other Option?
TL;DR: Veeam Cloud Connect is the right choice when your business already runs VMware or Hyper-V on-premises and you need granular recovery — individual files, Active Directory objects, or specific application items — without a full restore. It’s overkill for businesses without virtualized infrastructure.
Veeam’s Changed Block Tracking (CBT) is what makes it exceptional for virtual environments. After the initial full backup (which, yes, can take 4–8 hours for a 2TB VM on standard business internet), subsequent incrementals are extremely fast — often completing in under 10 minutes for environments that change modestly day to day. The Instant VM Recovery feature targets a sub-10-minute RTO for virtual machines specifically.
Here’s the catch with Veeam: the licensing model assumes you have someone who knows what they’re doing. Licensing starts around $200 per year per socket for on-premises Veeam, and you’ll need a Veeam Cloud Connect service provider to act as your cloud backup target. That’s a managed IT services relationship, not a self-service signup. Veeam reports that 82% of Fortune 2000 companies use their platform — but that stat tells you something about the enterprise DNA of the product.
Where Veeam genuinely shines is granular recovery. If an employee accidentally deletes 200 emails from Exchange, or an Active Directory object gets corrupted, you can restore exactly that item without touching anything else. That’s a capability most SMB-focused platforms don’t offer at this level of precision.
The weakness is the learning curve. Without an MSP managing the environment, Veeam configurations drift, backup jobs fail silently, and businesses discover the problem only when they need to recover. The CISA data backup guidance specifically warns against backup solutions that lack active monitoring — and Veeam without managed oversight fits that description.
[IMAGE: alt=”Veeam Cloud Connect architecture diagram showing on-premises VMware environment replicating to cloud backup target” | filename=”veeam-cloud-connect-smb-architecture.jpg”]
Key takeaway: Veeam Cloud Connect delivers the fastest incremental backups and most granular recovery for virtualized environments, but requires a managed IT services partner to operate reliably — it’s not a self-service solution for SMBs without in-house IT staff.
Is Backblaze B2 a Legitimate Cloud Backup Option for Small Businesses?
TL;DR: Backblaze B2 is a legitimate, cost-effective solution for simple file backup — at $6 per TB per month, it’s the most affordable option on this list. The hard limit is its RTO: full server recovery requires rebuilding the OS first, then restoring data, pushing realistic recovery times to 4–24 hours depending on data volume.
$0.006 per GB per month. That’s the number that gets attention. A 10TB dataset costs roughly $60 per month in storage — compare that to $300 with Acronis or $180–230 with Azure Backup. For a small retail shop backing up QuickBooks files, POS transaction logs, and a shared drive, Backblaze B2 paired with a client agent like MSP360 or Cloudberry is a perfectly reasonable setup.
The S3-compatible API is a genuine strength. It means Backblaze B2 works with dozens of backup agents, giving you flexibility to swap clients without migrating storage. Pricing is transparent — no hidden fees, no per-seat licensing surprises. Egress costs $0.01 per GB, which is manageable for routine restores but can spike during a large recovery event. Restoring 5TB of data costs an additional $50 in egress fees — not catastrophic, but worth budgeting for.
The real limitation shows up the moment you need to recover a server, not just files. Backblaze B2 has no native image-based backup capability. There’s no “instant restore” feature. If your server fails completely, you rebuild the operating system from scratch, reinstall applications, then pull your data from Backblaze. That process takes 4 hours on a good day and 24 hours when things go wrong. For a law firm or medical practice where every hour of downtime has a dollar figure attached, that RTO is unacceptable.
I’ll be honest — I initially thought Backblaze B2 was too limited to recommend seriously. Turns out it’s exactly right for a specific slice of the market: micro-businesses under 10 employees with straightforward file storage needs, lean IT budgets, and a tolerance for longer recovery times. Pair it with a local endpoint backup agent for workstation-level protection, and it covers the basics without breaking the budget.
[IMAGE: alt=”Cost comparison table showing Backblaze B2 vs Azure Backup vs Acronis monthly storage cost for 5TB small business dataset” | filename=”backblaze-b2-azure-acronis-cost-comparison.jpg”]
Key takeaway: Backblaze B2 is the most affordable cloud backup storage at approximately $6/TB per month, but its 4–24 hour RTO and lack of image-based backup make it unsuitable as a sole disaster recovery solution for businesses where downtime is costly.
Does Microsoft Azure Backup Make Sense for Small Businesses on the Microsoft Stack?
TL;DR: Microsoft Azure Backup is the strongest choice for businesses already standardized on Microsoft 365, Azure Active Directory, and Windows Server. Native integration eliminates the friction of third-party agents, and the pricing is predictable for most SMB workloads at $18–23 per TB per month with no ingress fees.
The offline seeding option is underappreciated. Azure Data Box lets you ship a physical device to Microsoft’s datacenter to seed your initial backup — bypassing the upload bottleneck entirely for large datasets. A 20TB initial backup that would take weeks over a business internet connection can be seeded in days via Data Box. After that, incrementals run normally over the network.
For Microsoft 365 specifically, Azure Backup covers Exchange Online, SharePoint, and OneDrive natively. This matters because Microsoft’s own retention policies are not a substitute for backup — the Azure Backup documentation makes this distinction clearly, and many businesses still confuse “Microsoft keeps my data” with “Microsoft backs up my data.” They don’t. A deleted SharePoint site can be gone permanently after 93 days if no backup exists.
RTO depends on where your workloads live. Azure-hosted workloads with Azure Site Recovery enabled can achieve near-zero RTO — failover happens in minutes. On-premises workloads backed up to Azure average a 1–4 hour RTO, which is acceptable for many SMBs but not for high-availability requirements.
The weak point is complexity outside the Microsoft ecosystem. If you run any Linux servers, non-Azure cloud workloads, or third-party applications, Azure Backup’s coverage gets patchy fast. It’s a platform that rewards commitment to the Microsoft stack and punishes mixed environments.
Key takeaway: Microsoft Azure Backup delivers predictable pricing at $18–23/TB per month, native Microsoft 365 protection, and near-zero RTO for Azure-hosted workloads — making it the clear winner for businesses fully standardized on the Microsoft stack.
When Is Datto SIRIS Worth the Premium Price?
TL;DR: Datto SIRIS combines a physical backup appliance with cloud replication to deliver the fastest possible RTO — under 6 minutes via local virtualization — at a premium cost of $50–80 per TB per month. It’s the right choice when an hour of downtime costs more than a month of backup fees.
Datto SIRIS takes continuous incremental backups every 5 minutes, meaning your maximum data loss window is 5 minutes. No other platform on this list matches that recovery point objective (RPO). When the server fails, Datto can spin up a virtual copy of that server locally — on the Datto appliance itself — while cloud recovery runs in parallel. Businesses are operational in under 6 minutes.
The pricing reflects the capability. At $50–80 per TB per month including the appliance and cloud storage, Datto SIRIS costs roughly 8–13 times more than Backblaze B2. That math only works when downtime is genuinely catastrophic. A manufacturing company that loses $10,000 per hour of production downtime will pay for a year of Datto in a single avoided outage. A 3-person consulting firm probably won’t.
Side note: Datto SIRIS is exclusively sold through MSP partners — you can’t buy it directly. That’s intentional. The platform is designed to be managed, monitored, and tested by a managed IT services provider. Backup testing is where most SMB backup strategies fail silently. A Gartner analysis of disaster recovery failures found that untested backups fail at recovery 58% of the time. Datto’s MSP model builds regular recovery testing into the service delivery framework.
[IMAGE: alt=”Datto SIRIS appliance with cloud backup architecture showing local virtualization and cloud failover paths” | filename=”datto-siris-local-cloud-backup-smb.jpg”]
Key takeaway: Datto SIRIS delivers the fastest RTO (under 6 minutes) and tightest RPO (5-minute intervals) of any platform reviewed, at a premium cost of $50–80/TB per month — justified only when business downtime costs exceed the platform’s significant price premium.
How Do You Choose the Right Cloud Backup Solution for Your Business?
The decision comes down to three questions you need to answer honestly before comparing platforms.
- What’s your actual RTO requirement? Calculate the real cost of one hour of downtime — lost revenue, staff idle time, customer impact, regulatory penalties. If that number exceeds $2,000, budget for Acronis or Datto. If it’s under $500, Backblaze B2 with a solid client agent may be sufficient.
- What infrastructure do you run? Virtualized servers on VMware or Hyper-V point toward Veeam. Microsoft 365 as your primary platform points toward Azure Backup. Mixed or physical environments with security requirements point toward Acronis.
- Do you have IT staff to manage the backup system? Veeam and Datto require active management. Backblaze B2 and Azure Backup are more self-service. Acronis sits in the middle. Unmanaged backup systems fail silently — and you discover the failure during a recovery event, not before.
The contrarian take here: most small businesses are under-protected not because they chose the wrong platform, but because they chose a platform and never tested recovery. A $6/TB Backblaze B2 backup that’s been tested monthly is more valuable than a $60/TB Datto setup that nobody has verified in two years. Platform choice matters — but backup testing discipline matters more.
Key takeaway: Choosing a cloud backup platform starts with calculating your real downtime cost, mapping your infrastructure type, and being honest about whether you have the IT capacity to manage the solution — untested backup systems fail at recovery 58% of the time regardless of platform.
Frequently Asked Questions: Cloud Backup for Small Businesses
What is Recovery Time Objective (RTO) and why does it matter for small businesses?
Recovery Time Objective (RTO) is the maximum acceptable time between a system failure and full restoration of normal operations. For small businesses, RTO determines which backup platform is appropriate — a 24-hour RTO may be acceptable for a solo consultant, while a 15-minute RTO is essential for a medical practice or retail operation where every hour of downtime has a direct revenue impact. Platforms like Datto SIRIS achieve RTOs under 6 minutes; Backblaze B2 averages 4–24 hours.
How much should a small business budget for cloud backup?
Budget ranges vary significantly by platform and data volume. At the low end, Backblaze B2 costs approximately $6 per TB per month — a 5TB dataset runs about $30/month. Mid-tier solutions like Microsoft Azure Backup and Acronis Cyber Protect Cloud run $18–30 per TB per month. Enterprise-grade platforms like Datto SIRIS reach $50–80 per TB per month including the physical appliance. Most small businesses with 5–50 employees and 2–10TB of data should budget $100–400 per month for a complete cloud backup solution.
Is Microsoft 365 backup included with a Microsoft 365 subscription?
No. Microsoft 365 subscriptions include data retention and some recycle-bin functionality, but they do not include true backup with point-in-time recovery. Microsoft’s shared responsibility model explicitly places data backup responsibility on the customer. A deleted SharePoint site is permanently unrecoverable after 93 days without a third-party or native Azure Backup policy in place. Every business running Microsoft 365 needs a dedicated backup solution covering Exchange Online, SharePoint, and OneDrive.
What is the difference between cloud backup and disaster recovery?
Cloud backup copies your data to an offsite location so it can be restored after data loss. Disaster recovery (DR) goes further — it includes the ability to run your systems from the backup environment while your primary infrastructure is being restored. Platforms like Datto SIRIS and Acronis Cyber Protect Cloud with Instant Restore provide both capabilities. Backblaze B2 provides cloud backup only, with no DR capability. For businesses with a sub-1-hour RTO requirement, disaster recovery functionality is non-negotiable.
How often should small businesses test their cloud backup recovery?
At minimum, quarterly. Monthly is better. The specific test should include a full file-level restore, an application-level restore (recovering a database or mailbox, not just files), and at minimum an annual full-system recovery test. According to Gartner research, untested backups fail at recovery 58% of the time — making regular testing the single highest-impact practice in any backup strategy, regardless of which platform you use. Document each test with timestamps and recovery metrics to satisfy audit requirements under HIPAA, SOC 2, or similar compliance frameworks.