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Backup · head to head

Arcserve UDP vs rustic

Arcserve UDP logo

Arcserve UDP

Backup

Unified data protection for all workloads

From
$25/month
Rated
-
Full reviewWebsite
rustic logo

rustic

Backup

Rust reimplementation of restic that reads and writes the same repository format

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only rustic has a free tier, so it costs nothing to try first.
  • Each has a real cost: Arcserve UDP multiple security vulnerabilities documented in 2025-2026 including authentication bypass and buffer overflow issues; rustic the project is small with a short list of active maintainers, so bus factor is a genuine consideration for software whose job is to still work in five years.
  • They diverge on capability: Arcserve UDP covers Assured recovery testing, rustic covers restic format compatibility.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Arcserve UDP and rustic actually diverge.

Attributes where Arcserve UDP and rustic differ
AttributeArcserve UDPrustic
Starting price$25/monthFree
Pricing modelsubscriptionOpen source, no licence fee
Free tierNoYes
PlatformsWindows, LinuxLinux, macOS, Windows
Founded1983Unknown

Identical on both: 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 Arcserve UDP

  • Assured recovery testing
  • Instant VM recovery
  • Deep application support
  • Ransomware protection
  • Tape backup
  • Hardware snapshots
  • VMware
  • Hyper-V

Only in rustic

  • restic format compatibility
  • Configuration profiles
  • Deduplicated encrypted backups
  • Cold and append only storage support
  • Multiple back ends
  • Library crates

What people use each for

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

Arcserve UDP

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

rustic

  • An existing restic user who wants configuration files rather than long command lines in cronnot Arcserve UDP
  • Backing up a memory constrained machine where the reference implementation is uncomfortably heavynot Arcserve UDP
  • Writing to append only or cold object storage where the default tooling assumes rewritable bucketsnot Arcserve UDP
  • Keeping a second implementation available so a long lived archive does not depend on one codebasenot Arcserve UDP

Where each one falls short

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

Arcserve UDP

  • Multiple security vulnerabilities documented in 2025-2026 including authentication bypass and buffer overflow issues
  • Slow restore speeds for large backup tasks and recovery operations
  • Requires full backup when changing drive sizes, causing extended backup windows

rustic

  • The project is small with a short list of active maintainers, so bus factor is a genuine consideration for software whose job is to still work in five years.
  • It inherits the restic repository format, so design limits in that format, including the cost of pruning large repositories, are inherited rather than fixed.
  • Command names, flags and behaviour do not map one to one onto restic, so scripts and runbooks need rewriting rather than a binary swap.
  • Far fewer people have performed a real restore from it under pressure, and backup software is one of the few categories where being second most used is itself a risk.
  • Alternating between rustic and restic against one repository works but doubles the surface for a version incompatibility to corrupt state, so most operators should pick one and stay with it.

Pricing, plan by plan

Arcserve UDP

$25/month
  • UDP Premium$25/month
    • Assured recovery
    • Instant VM
    • Tape support

rustic

Free
  • rusticFree
    • Full functionality, no data limit
    • All supported storage back ends
    • Community support via GitHub

Which should you pick?

Choose Arcserve UDP if

  • You need assured recovery testing.
  • You work on Windows, Linux.
  • You also want instant vm recovery.
Arcserve UDP review

Choose rustic if

  • You need restic format compatibility.
  • You want to start without paying.
  • You work on Linux, macOS, Windows.
  • You also want configuration profiles.
rustic review

Questions people ask

Is Arcserve UDP or rustic better?
Neither clearly leads. Arcserve UDP starts at $25/month and rustic at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Arcserve UDP or rustic?
rustic has a free tier; the other does not. Paid plans start at $25/month for Arcserve UDP and Free for rustic.
Does Arcserve UDP or rustic run on more platforms?
Arcserve UDP runs on Windows, Linux. rustic runs on Linux, macOS, Windows.
Can I use rustic for free?
Yes. rustic has a free tier, so you can try it without paying. Arcserve UDP starts at $25/month.
What is Arcserve UDP best used for?
Arcserve UDP is most often used for data protection, disaster recovery, business continuity, ransomware protection. Of those, data protection and disaster recovery are not what rustic is typically brought in for.
What can Arcserve UDP do that rustic cannot?
Arcserve UDP covers Assured recovery testing, Instant VM recovery, Deep application support, Ransomware protection. rustic covers restic format compatibility, Configuration profiles, Deduplicated encrypted backups, Cold and append only storage support.

Answered from the vendors’ own pages

Arcserve UDP: What licensing model does Arcserve UDP use?

Arcserve UDP uses a capacity-based subscription model (Managed Capacity Program) where you license based on total front-end terabytes of protected data rather than per-device. Available in Standard, Advanced, and Premium editions.

Source
rustic: Can it read my existing restic repository?

Yes, that is the point of the project. Take a copy and verify before you rely on it, as with any change to backup tooling.

Arcserve UDP: Does Arcserve UDP support cloud backup?

Yes. Arcserve UDP integrates with multiple cloud providers including AWS, Microsoft Azure, Google Cloud, and Wasabi for offsite backup and disaster recovery storage.

Source
rustic: Should I switch from restic?

Only for a specific reason such as configuration profiles, memory use or cold storage handling. Compatibility means there is no cost to trying and no cost to going back.

Arcserve UDP: What hypervisors does Arcserve UDP support?

Arcserve UDP supports multiple hypervisors including VMware vSphere, Microsoft Hyper-V, KVM, and others, allowing granular recovery at the VM level with instant boot capabilities.

Source
rustic: Is it production ready?

It is used in production by a small community, but it is younger and less exercised than the implementation it is compatible with. Test restores accordingly.

rustic: Does it support the same back ends?

The common ones, including local, SFTP, S3 compatible storage and rclone. Check the current list before committing to an unusual target.

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