Softwr

Backup · head to head

HPE StoreOnce vs Kopia

HPE StoreOnce logo

HPE StoreOnce

Backup

Disk-based backup with built-in deduplication

From
$5000/one-time
Rated
-
Full reviewWebsite
Kopia logo

Kopia

Backup

Open source deduplicating backup with client side encryption and a repository on almost any storage

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Kopia has a free tier, so it costs nothing to try first.
  • They diverge on capability: HPE StoreOnce covers StoreOnce Catalyst, Kopia covers Content defined chunking.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which HPE StoreOnce and Kopia actually diverge.

Attributes where HPE StoreOnce and Kopia differ
AttributeHPE StoreOnceKopia
Starting price$5000/one-timeFree
Pricing modelone-timeOpen source, no licence fee
Free tierNoYes
PlatformsLinux, WebLinux, macOS, Windows, Docker
Founded2015Unknown

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 HPE StoreOnce

  • StoreOnce Catalyst
  • Cloud bank storage
  • Instant recovery
  • Federated deduplication
  • Encryption
  • Replication
  • Veeam
  • Commvault

Only in Kopia

  • Content defined chunking
  • Global deduplication
  • Pack blobs
  • Client side encryption
  • Desktop and command line
  • Repository verification

What people use each for

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

HPE StoreOnce

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

Kopia

  • Backing up laptops and workstations to cheap object storage with a desktop interface rather than a cron jobnot HPE StoreOnce
  • Deduplicating backups of several similar machines into one repository so common content is stored oncenot HPE StoreOnce
  • Replacing a chunk based tool whose per object charges made a cheap bucket expensivenot HPE StoreOnce
  • Keeping an encrypted offsite copy where the storage provider must never be able to read the contentsnot HPE StoreOnce

Where each one falls short

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

HPE StoreOnce

Nothing recorded yet. See the HPE StoreOnce review.

Kopia

  • Space is only reclaimed when maintenance runs, and in a shared repository full maintenance is owned by one client, so if that machine goes away the repository grows for ever while every backup still reports success.
  • The repository format has changed across versions and mixing client versions against one repository is discouraged, so a fleet must be upgraded together rather than machine by machine.
  • There is no central orchestration or reporting for many machines, so monitoring a fleet means building your own alerting around exit codes.
  • Restoring many small files is slower than the backup was, because content must be reassembled from pack blobs, and this is rarely tested until the day it matters.
  • Encryption is client side with no escrow, so a lost repository password means the data is unrecoverable and there is no vendor to appeal to.

Pricing, plan by plan

HPE StoreOnce

$5000/one-time
  • StoreOnce Appliance$5000/one-time
    • Catalyst deduplication
    • Cloud bank
    • Instant recovery

Kopia

Free
  • KopiaFree
    • Full functionality, no data limit
    • Desktop application included
    • Any supported storage back end

Which should you pick?

Choose HPE StoreOnce if

  • You need storeonce catalyst.
  • You work on Linux, Web.
  • You also want cloud bank storage.
HPE StoreOnce review

Choose Kopia if

  • You need content defined chunking.
  • You want to start without paying.
  • You work on Linux, macOS, Windows, Docker.
  • You also want global deduplication.
Kopia review

Questions people ask

Is HPE StoreOnce or Kopia better?
Neither clearly leads. HPE StoreOnce starts at $5000/one-time and Kopia at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, HPE StoreOnce or Kopia?
Kopia has a free tier; the other does not. Paid plans start at $5000/one-time for HPE StoreOnce and Free for Kopia.
Does HPE StoreOnce or Kopia run on more platforms?
HPE StoreOnce runs on Linux, Web. Kopia runs on Linux, macOS, Windows, Docker.
Can I use Kopia for free?
Yes. Kopia has a free tier, so you can try it without paying. HPE StoreOnce starts at $5000/one-time.
What is HPE StoreOnce best used for?
HPE StoreOnce is most often used for data protection, disaster recovery, business continuity, ransomware protection. Of those, data protection and disaster recovery are not what Kopia is typically brought in for.
What can HPE StoreOnce do that Kopia cannot?
HPE StoreOnce covers StoreOnce Catalyst, Cloud bank storage, Instant recovery, Federated deduplication. Kopia covers Content defined chunking, Global deduplication, Pack blobs, Client side encryption.

Answered from the vendors’ own pages

Kopia: Is a partly corrupt repository still restorable?

Partly. Deduplication means one damaged pack blob affects every snapshot referencing its contents, but unaffected files still restore. Run verification regularly rather than assuming.

Kopia: How does it compare with restic?

Similar guarantees, with packing that behaves better on per operation billing, a desktop interface, and compression enabled by default.

Kopia: Do I need to run maintenance manually?

It is scheduled automatically by default, but you must ensure the client that owns full maintenance keeps running, otherwise deleted snapshots never free space.

Kopia: Can several machines share one repository?

Yes, and that is where deduplication pays off, but they should run compatible versions and only one owns full maintenance.

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