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Arcserve UDP vs TrueNAS

Arcserve UDP logo

Arcserve UDP

Software

Unified data protection for all workloads

From
$25/month
Rated
-
Full reviewWebsite
TrueNAS logo

TrueNAS

Software

Open-source ZFS storage operating system for network-attached storage

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only TrueNAS 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; TrueNAS requires self-hosting on x86 hardware, no managed cloud offering; organisations must provision, configure, and maintain their own infrastructure

Where they differ

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

Attributes where Arcserve UDP and TrueNAS differ
AttributeArcserve UDPTrueNAS
Starting price$25/monthFree
Pricing modelsubscriptionopen-source
Free tierNoYes
PlatformsWindows, LinuxSelf-hosted, Linux, Web, API
Founded1983Unknown

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 Arcserve UDP

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

Only in TrueNAS

Nothing recorded that Arcserve UDP does not also cover.

What people use each for

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

Arcserve UDP

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

TrueNAS

  • On-premises backup and archival storage for enterprisesnot Arcserve UDP
  • Home lab and small business network-attached storagenot Arcserve UDP
  • Media server storage for video, photo, and document librariesnot Arcserve UDP
  • Disaster recovery and business continuity replicationnot Arcserve UDP
  • S3-compatible object storage for cloud-native applicationsnot Arcserve UDP
  • High-availability storage clusters for datacentresnot 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

TrueNAS

  • Requires self-hosting on x86 hardware, no managed cloud offering; organisations must provision, configure, and maintain their own infrastructure
  • ZFS filesystem entails high memory requirements (1 GB RAM per 1 TB of storage recommended), increasing costs for large deployments
  • Limited ARM/embedded support; Community Edition is primarily x86-64, reducing deployment options for edge installations
  • Clustering and replication setup requires operational expertise; misconfiguration can lead to data loss
  • Enterprise support and SLA guarantees require paid subscriptions; Community Edition relies on peer-based forums

Pricing, plan by plan

Arcserve UDP

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

TrueNAS

Free

No published plan breakdown. See the TrueNAS review.

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 TrueNAS if

  • You want to start without paying.
  • You work on Self-hosted, Linux, Web, API.
TrueNAS review

Questions people ask

Is Arcserve UDP or TrueNAS better?
Neither clearly leads. Arcserve UDP starts at $25/month and TrueNAS at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Arcserve UDP or TrueNAS?
TrueNAS has a free tier; the other does not. Paid plans start at $25/month for Arcserve UDP and Free for TrueNAS.
Does Arcserve UDP or TrueNAS run on more platforms?
Arcserve UDP runs on Windows, Linux. TrueNAS runs on Self-hosted, Linux, Web, API.
Can I use TrueNAS for free?
Yes. TrueNAS 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 TrueNAS is typically brought in for.
What can Arcserve UDP do that TrueNAS cannot?
Arcserve UDP covers Assured recovery testing, Instant VM recovery, Deep application support, Ransomware protection.

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
TrueNAS: What is the cost of TrueNAS Community Edition?

TrueNAS Community Edition is free and open-source. There are no licensing fees, but organisations must purchase and maintain their own x86 hardware. Enterprise Edition requires paid support contracts for production environments.

Source
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
TrueNAS: Can I replicate TrueNAS data between sites?

Yes. TrueNAS supports snapshot-based replication over network links, enabling disaster recovery and business continuity. Replication can occur between Community Edition systems or between Enterprise Appliances.

Source
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
TrueNAS: What storage protocols does TrueNAS support?

TrueNAS simultaneously supports NFS (network file system), SMB (Windows file sharing), iSCSI (block storage), and S3-compatible object storage, all from the same storage pool.

Source
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