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Software · head to head

Restic vs Datto SIRIS

Restic logo

Restic

Software

Fast, secure, and efficient backup program

From
Free
Rated
-
Full reviewWebsite
Datto SIRIS logo

Datto SIRIS

Software

All-in-one business continuity and disaster recovery

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

The short version

  • Only Restic has a free tier, so it costs nothing to try first.
  • Each has a real cost: Restic cold storage is not natively supported; restoring from S3 Glacier and S3 Glacier Deep Archive is only available as an experimental feature behind a feature flag; Datto SIRIS requires on-premises appliance, not purely cloud-native
  • They diverge on capability: Restic covers Content-defined chunking, Datto SIRIS covers Instant virtualization.

Where they differ

Only the attributes on which Restic and Datto SIRIS actually diverge.

Attributes where Restic and Datto SIRIS differ
AttributeResticDatto SIRIS
Starting priceFree$1095/one-time + recurring
Pricing modelfreeUnknown
Free tierYesNo
PlatformsWindows, Mac, LinuxLinux, Virtual Environments
Founded20142011

Identical on both: user rating (Not yet rated), category (Unknown).

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 Restic

  • Content-defined chunking
  • Cryptographic verification
  • Deduplication
  • Encryption
  • Multiple backends
  • Snapshot management
  • AWS S3
  • Azure

Only in Datto SIRIS

  • Instant virtualization
  • Screenshot verification
  • Ransomware detection
  • Inverse chain technology
  • Cloud-first architecture
  • Automated DR testing
  • VMware
  • Hyper-V

Both cover

  • Windows support
  • Linux support

What people use each for

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

Restic

  • Encrypted deduplicated backups to S3, B2, SFTP and local disk from the command linenot Datto SIRIS
  • Scripted server backups with snapshot retention policiesnot Datto SIRIS

Datto SIRIS

  • Data protectionnot Restic
  • Disaster recoverynot Restic
  • Business continuitynot Restic
  • Ransomware protectionnot Restic
  • Compliancenot Restic

Where each one falls short

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

Restic

  • Cold storage is not natively supported; restoring from S3 Glacier and S3 Glacier Deep Archive is only available as an experimental feature behind a feature flag
  • A Windows file whose name contains a character Windows treats as invalid cannot be read by restic and has to be renamed
  • Antivirus real-time protection degrades performance on Windows unless the restic binary is added to an exclusions list
  • On large repositories the built-in five minute stuck-request timeout fires during file listing and has to be raised manually with --stuck-request-timeout

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

Restic

Free
  • FreeFree
    • Content-defined chunking
    • Encryption
    • Multiple backends

Datto SIRIS

$1095/one-time + recurring

No published plan breakdown. See the Datto SIRIS review.

Which should you pick?

Choose Restic if

  • You need content-defined chunking.
  • You want to start without paying.
  • You work on Windows, Mac, Linux.
  • You also want cryptographic verification.
Restic 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 Restic or Datto SIRIS better?
Neither clearly leads. Restic starts at Free 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, Restic or Datto SIRIS?
Restic has a free tier; the other does not. Paid plans start at Free for Restic and $1095/one-time + recurring for Datto SIRIS.
Does Restic or Datto SIRIS run on more platforms?
Restic runs on Windows, Mac, Linux. Datto SIRIS runs on Linux, Virtual Environments.
Can I use Restic for free?
Yes. Restic has a free tier, so you can try it without paying. Datto SIRIS starts at $1095/one-time + recurring.
What is Restic best used for?
Restic is most often used for encrypted deduplicated backups to s3, b2, sftp and local disk from the command line, scripted server backups with snapshot retention policies. Of those, encrypted deduplicated backups to s3, b2, sftp and local disk from the command line and scripted server backups with snapshot retention policies are not what Datto SIRIS is typically brought in for.
What can Restic do that Datto SIRIS cannot?
Restic covers Content-defined chunking, Cryptographic verification, Deduplication, Encryption. Datto SIRIS covers Instant virtualization, Screenshot verification, Ransomware detection, Inverse chain technology. Both handle Windows support, Linux support.

Answered from the vendors’ own pages

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
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
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
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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