Softwr

Software · head to head

Arcserve UDP vs Backblaze

Arcserve UDP logo

Arcserve UDP

Software

Unified data protection for all workloads

From
$25/month
Rated
-
Full reviewWebsite
Backblaze logo

Backblaze

Software

Unlimited cloud backup at an affordable price

From
$9/month
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Arcserve UDP multiple security vulnerabilities documented in 2025-2026 including authentication bypass and buffer overflow issues; Backblaze personal Backup is $99 a year billed annually, with no monthly option
  • They diverge on capability: Arcserve UDP covers Assured recovery testing, Backblaze covers Unlimited backup.

Where they differ

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

Attributes where Arcserve UDP and Backblaze differ
AttributeArcserve UDPBackblaze
Starting price$25/month$9/month
Pricing modelsubscriptionUnknown
PlatformsWindows, LinuxWindows, macOS, Web
Founded19832007

Identical on both: free tier (No), 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 Backblaze

  • Unlimited backup
  • Continuous backup
  • Version history
  • Private encryption key
  • Restore by mail
  • Mobile apps
  • macOS
  • Windows

Both cover

  • Windows support
  • Web support

What people use each for

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

Arcserve UDP

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

Backblaze

  • Unlimited backup of a personal computer and external drivesnot Arcserve UDP
  • Restoring files from anywhere through the webnot Arcserve UDP
  • Mailed hard drive restore for large recoveriesnot Arcserve UDP
  • Private encryption key control for sensitive datanot 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

Backblaze

  • Personal Backup is $99 a year billed annually, with no monthly option
  • Web restores are capped at 500GB per request
  • Forever version history is a Business tier add-on rather than included
  • Administrative controls and SSO are Business features
  • Backs up user data from a computer and attached drives, so NAS and server backup are not covered by the personal plan

Pricing, plan by plan

Arcserve UDP

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

Backblaze

$9/month
  • Personal Backup$9/month
    • Unlimited storage for single computer
    • Unlimited version history
    • 30-day trial
  • B2 Cloud Storage$6/TB/month
    • S3-compatible storage
    • Pay-as-you-go model

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 Backblaze if

  • You need unlimited backup.
  • You work on Windows, macOS, Web.
  • You also want continuous backup.
Backblaze review

Questions people ask

Is Arcserve UDP or Backblaze better?
Neither clearly leads. Arcserve UDP starts at $25/month and Backblaze at $9/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Arcserve UDP or Backblaze?
Arcserve UDP starts at $25/month and Backblaze at $9/month.
Does Arcserve UDP or Backblaze run on more platforms?
Arcserve UDP runs on Windows, Linux. Backblaze runs on Windows, macOS, Web.
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 Backblaze is typically brought in for.
What can Arcserve UDP do that Backblaze cannot?
Arcserve UDP covers Assured recovery testing, Instant VM recovery, Deep application support, Ransomware protection. Backblaze covers Unlimited backup, Continuous backup, Version history, Private encryption key. Both handle Windows support, Web 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
Backblaze: What is the pricing for Backblaze Personal Backup?

Backblaze Personal Backup costs $9/month on monthly billing or $8.25/month when billed annually, providing unlimited storage for a single computer.

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
Backblaze: What storage options does Backblaze B2 offer?

Backblaze B2 Cloud Storage is priced at $6/TB per month with a pay-as-you-go model, and is S3 compatible for flexible cloud storage.

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
Backblaze: Does Backblaze support Linux systems?

No. Backblaze does not support Linux operating systems, limiting it to Windows, macOS, and web access only.

Source
ShareXLinkedInRedditWhatsAppEmail

Related pages

More on Arcserve UDP

More on Backblaze

Keep looking

Other head to heads