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Backup · head to head

Borg Backup vs Ceph

Borg Backup logo

Borg Backup

Backup

Deduplicating archiver with compression and encryption

From
Free
Rated
-
Ceph logo

Ceph

File Storage

Open source distributed storage providing object, block and file from one cluster

From
Free
Rated
-

The short version

  • Each has a real cost: Borg Backup linux, macOS and BSD only; Windows is not a supported platform; Ceph ceph assumes an operator who understands placement groups, CRUSH rules and recovery tuning, so organisations without dedicated storage staff routinely end up with a cluster that works until the first failure and then does not.
  • They diverge on capability: Borg Backup covers Content-defined chunking, Ceph covers RADOS object store.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Borg Backup and Ceph actually diverge.

Attributes where Borg Backup and Ceph differ
AttributeBorg BackupCeph
Pricing modelfreeOpen source, no licence fee
PlatformsLinux, MacLinux
CategoryBackupFile Storage
Founded2015Unknown

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

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 Borg Backup

  • Content-defined chunking
  • Deduplication
  • Compression
  • Authenticated encryption
  • Pruning
  • Mount archives
  • SSH
  • BorgBase

Only in Ceph

  • RADOS object store
  • RADOS Gateway
  • RBD block devices
  • CephFS
  • CRUSH placement
  • Erasure coded pools

What people use each for

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

Borg Backup

  • Deduplicated backups where daily full snapshots would otherwise be expensivenot Ceph
  • Encrypted backup to a server you do not fully trust, since the server never sees plaintextnot Ceph
  • Browsing previous versions by mounting an archive over FUSEnot Ceph
  • Scripted server backups with no agent or daemon to runnot Ceph

Ceph

  • Backing a private cloud where virtual machine disks, shared filesystems and an S3 endpoint all need the same hardwarenot Borg Backup
  • Growing past the point where a proprietary array upgrade costs more than a rack of commodity serversnot Borg Backup
  • Research and media environments with petabytes of data and staff who can operate storagenot Borg Backup
  • Providing an S3 endpoint on premises with multi site replication under your own controlnot Borg Backup

Where each one falls short

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

Borg Backup

  • Linux, macOS and BSD only; Windows is not a supported platform
  • Command-line only, with no graphical interface in the project itself
  • Version 2.0 is still in beta, so production use means staying on the 1.4 line
  • Restoring requires the Borg tooling, since archives are a deduplicated chunk store rather than plain files

Ceph

  • Ceph assumes an operator who understands placement groups, CRUSH rules and recovery tuning, so organisations without dedicated storage staff routinely end up with a cluster that works until the first failure and then does not.
  • Small clusters are inefficient: three way replication means a third of raw capacity is usable, and erasure coding needs enough failure domains to be safe, so the economics only work above a certain size.
  • Recovery and rebalancing generate heavy internal traffic, so a failed disk can degrade client latency across the cluster unless backfill is throttled correctly beforehand.
  • Upgrades must follow a strict daemon order across monitors, managers, OSDs and gateways, and a mistake in that order on a live cluster is difficult to reverse.
  • Because it is self hosted, every byte served to the internet is transit you pay for on your own links, so the free licence does not mean free egress and bandwidth planning becomes your problem rather than the providers.

Pricing, plan by plan

Borg Backup

Free
  • FreeFree
    • Deduplication
    • Compression
    • Encryption

Ceph

Free
  • CephFree
    • Full functionality, no capacity limit
    • Object, block and file interfaces
    • Community support via mailing list and Slack

Which should you pick?

Choose Borg Backup if

  • You need content-defined chunking.
  • You want to start without paying.
  • You work on Linux, Mac.
  • You also want deduplication.

Choose Ceph if

  • You need rados object store.
  • You want to start without paying.
  • You work on Linux.
  • You also want rados gateway.

Questions people ask

Is Borg Backup or Ceph better?
Neither clearly leads. Borg Backup starts at Free and Ceph at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Borg Backup or Ceph?
Borg Backup starts at Free and Ceph at Free.
Does Borg Backup or Ceph run on more platforms?
Borg Backup runs on Linux, Mac. Ceph runs on Linux.
Can I use Borg Backup for free?
Both have a free tier, so you can try either at no cost before committing.
What is Borg Backup best used for?
Borg Backup is most often used for deduplicated backups where daily full snapshots would otherwise be expensive, encrypted backup to a server you do not fully trust, since the server never sees plaintext, browsing previous versions by mounting an archive over fuse, scripted server backups with no agent or daemon to run. Of those, deduplicated backups where daily full snapshots would otherwise be expensive and encrypted backup to a server you do not fully trust, since the server never sees plaintext are not what Ceph is typically brought in for.
What can Borg Backup do that Ceph cannot?
Borg Backup covers Content-defined chunking, Deduplication, Compression, Authenticated encryption. Ceph covers RADOS object store, RADOS Gateway, RBD block devices, CephFS.

Answered from the vendors’ own pages

Borg Backup: What is the cost of BorgBackup?

BorgBackup is completely free and open source under the BSD license with no mandatory costs for the core software.

Source
Ceph: How many nodes do I need to start?

Three is the practical minimum for a replicated cluster with real fault tolerance, and most production advice starts at five once you account for maintenance windows.

Borg Backup: Are there paid services available for BorgBackup?

Yes, optional third-party services are available: BorgBase for specialized Borg repository hosting, Hetzner Storage Box with Borg support, and rsync.net cloud storage integration.

Source
Ceph: Is it faster than a SAN?

Not on single stream latency. It wins on aggregate throughput and on growing without a forklift upgrade, which is a different property from raw speed.

Borg Backup: How can I support the BorgBackup project?

BorgBackup accepts voluntary contributions through Open Collective, GitHub Sponsors, Liberapay, and PayPal, though donations are optional.

Source
Ceph: Can I buy support?

Yes. IBM sells IBM Storage Ceph and SUSE and others have offered supported builds; the upstream project itself is free.

Ceph: Should I use it just for S3?

If object is all you need, a dedicated object store is simpler to run. Ceph earns its complexity when you need block and file as well.

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