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Backup · head to head

Cohesity DataProtect vs Datto SIRIS

Cohesity DataProtect logo

Cohesity DataProtect

Backup

Hyperconverged secondary data protection

From
On request
Rated
-
Full reviewWebsite
Datto SIRIS logo

Datto SIRIS

Backup

All-in-one business continuity and disaster recovery

From
$1095/one-time + recurring
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Cohesity DataProtect primarily focused on enterprise customers; less suitable for small businesses; Datto SIRIS requires on-premises appliance, not purely cloud-native
  • They diverge on capability: Cohesity DataProtect covers Hyperconverged architecture, Datto SIRIS covers Instant virtualization.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Cohesity DataProtect and Datto SIRIS actually diverge.

Attributes where Cohesity DataProtect and Datto SIRIS differ
AttributeCohesity DataProtectDatto SIRIS
Starting priceOn request$1095/one-time + recurring
PlatformsOn-premises, AWS, Azure, Google CloudLinux, Virtual Environments
Founded20132011

Identical on both: pricing model (Unknown), free tier (No), user rating (Not yet rated), category (Backup).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Cohesity DataProtect

  • Hyperconverged architecture
  • Instant mass restore
  • Global deduplication
  • Global search
  • Ransomware protection
  • Cloud tiering
  • AWS
  • Azure

Only in Datto SIRIS

  • Instant virtualization
  • Screenshot verification
  • Ransomware detection
  • Inverse chain technology
  • Cloud-first architecture
  • Automated DR testing
  • Windows Server
  • Microsoft 365

Both cover

  • VMware
  • Hyper-V
  • Windows support
  • Linux support
  • Web support

What people use each for

The jobs each tool is most often brought in to do.

Cohesity DataProtect

  • Data protection
  • Disaster recovery
  • Business continuity
  • Ransomware protection
  • Compliance

Datto SIRIS

  • Data protection
  • Disaster recovery
  • Business continuity
  • Ransomware protection
  • Compliance

Both are used for data protection, disaster recovery, business continuity, ransomware protection, compliance, on those jobs the choice comes down to price and fit rather than capability.

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Cohesity DataProtect

  • Primarily focused on enterprise customers; less suitable for small businesses
  • Requires significant IT expertise to optimize deduplication and retention policies
  • High upfront infrastructure costs for on-premises deployment

Datto SIRIS

  • Requires on-premises appliance, not purely cloud-native
  • Initial setup and hardware costs can be substantial for smaller MSPs

Pricing, plan by plan

Cohesity DataProtect

On request

No published plan breakdown. See the Cohesity DataProtect review.

Datto SIRIS

$1095/one-time + recurring

No published plan breakdown. See the Datto SIRIS review.

Which should you pick?

Choose Cohesity DataProtect if

  • You need hyperconverged architecture.
  • You work on On-premises, AWS, Azure, Google Cloud.
  • You also want instant mass restore.
Cohesity DataProtect review

Choose Datto SIRIS if

  • You need instant virtualization.
  • You work on Linux, Virtual Environments.
  • You also want screenshot verification.
Datto SIRIS review

Questions people ask

Is Cohesity DataProtect or Datto SIRIS better?
Neither clearly leads. Cohesity DataProtect starts at On request and Datto SIRIS at $1095/one-time + recurring, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cohesity DataProtect or Datto SIRIS?
Cohesity DataProtect starts at On request and Datto SIRIS at $1095/one-time + recurring.
Does Cohesity DataProtect or Datto SIRIS run on more platforms?
Cohesity DataProtect runs on On-premises, AWS, Azure, Google Cloud. Datto SIRIS runs on Linux, Virtual Environments.
What is Cohesity DataProtect best used for?
Cohesity DataProtect is most often used for data protection, disaster recovery, business continuity, ransomware protection.
What can Cohesity DataProtect do that Datto SIRIS cannot?
Cohesity DataProtect covers Hyperconverged architecture, Instant mass restore, Global deduplication, Global search. Datto SIRIS covers Instant virtualization, Screenshot verification, Ransomware detection, Inverse chain technology. Both handle VMware, Hyper-V, Windows support, Linux support.

Answered from the vendors’ own pages

Cohesity DataProtect: What is the main benefit of Cohesity DataProtect's instant recovery?

Cohesity uniquely reduces downtime by enabling instant mass restoration of any number of VMs, large volumes of unstructured data, and Oracle databases to any point in time.

Source
Datto SIRIS: What does SIRIS protect against?

Datto SIRIS includes immutable cloud backups, automated recovery verification, and integrated ransomware detection through Cloud Deletion Defense which undoes accidental or malicious backup deletion.

Source
Cohesity DataProtect: How much can Cohesity reduce data protection costs?

Cohesity DataProtect reduces data protection costs by 70% or more through unified management and deduplication.

Source
Datto SIRIS: What's the pricing model?

Datto SIRIS uses flat-rate pricing starting at $1,095, which includes installation, storage, VIP support, recoveries, two annual DR tests, and five-year warranty.

Source
Cohesity DataProtect: What platforms and workloads does Cohesity DataProtect support?

Cohesity DataProtect protects on-premises systems, multiple cloud environments, and SaaS applications through a single unified platform.

Source
Datto SIRIS: What integrations does SIRIS have?

Datto SIRIS integrates natively with Autotask PSA, Datto RMM, ConnectWise Automate, and ConnectWise PSA. It also supports virtualization platforms like vSphere and CentOS Linux.

Source
Cohesity DataProtect: Does Cohesity use security best practices for backup protection?

Yes. Cohesity DataProtect uses multilayered security architecture designed to minimize the risk of backups becoming a ransomware target.

Source
Datto SIRIS: Is SIRIS cloud-only or appliance-based?

Datto SIRIS is an on-premises appliance that backs up data to Datto's cloud. You do not need to maintain your own physical server infrastructure for the core SIRIS functionality.

Source
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