Is Ceph or Cloudian better?

Neither clearly leads. Ceph starts at Free and Cloudian at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Ceph or Cloudian?

Ceph has a free tier; the other does not. Paid plans start at Free for Ceph and On request for Cloudian.

Does Ceph or Cloudian run on more platforms?

Both run on Linux, so platform support will not decide this one for you.

Can I use Ceph for free?

Yes. Ceph has a free tier, so you can try it without paying. Cloudian starts at On request.

What is Ceph best used for?

Ceph is most often used for backing a private cloud where virtual machine disks, shared filesystems and an s3 endpoint all need the same hardware, growing past the point where a proprietary array upgrade costs more than a rack of commodity servers, research and media environments with petabytes of data and staff who can operate storage, providing an s3 endpoint on premises with multi site replication under your own control. Of those, backing a private cloud where virtual machine disks, shared filesystems and an s3 endpoint all need the same hardware and growing past the point where a proprietary array upgrade costs more than a rack of commodity servers are not what Cloudian is typically brought in for.

What can Ceph do that Cloudian cannot?

Ceph covers RADOS object store, RADOS Gateway, RBD block devices, CephFS. Cloudian covers S3 API compatibility, Object Lock, Erasure coding, Multi-tenancy.

File Storage · head to head

Ceph vs Cloudian

Ceph

File Storage

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

From: Free
Rated: -

Full review Website

Cloudian

File Storage

S3-compatible on-premises object storage with object lock immutability

From: On request
Rated: -

Full review Website

The short version

Only Ceph has a free tier, so it costs nothing to try first.
Each has a real cost: 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.; Cloudian you operate the hardware, so capacity planning, firmware, node failures and a refresh cycle every five years return as costs that a public cloud bill hides.
They diverge on capability: Ceph covers RADOS object store, Cloudian covers S3 API compatibility.
Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Ceph and Cloudian actually diverge.

Attributes where Ceph and Cloudian differ
Attribute	Ceph	Cloudian
Starting price	Free	On request
Pricing model	Open source, no licence fee	quote
Free tier	Yes	No

Identical on both: platforms (Linux), user rating (Not yet rated), category (File Storage).

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 Ceph

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

Only in Cloudian

S3 API compatibility
Object Lock
Erasure coding
Multi-tenancy
Hybrid tiering
HyperStore appliances

What people use each for

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

Ceph

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

Cloudian

A backup team needing an immutable target so a compromised administrator account cannot delete the backupsnot Ceph
An organisation restoring hundreds of terabytes regularly where public cloud egress charges make cloud storage untenablenot Ceph
A university or government body with data residency rules preventing use of public cloud object storagenot Ceph
A media archive holding petabytes of finished content where per-terabyte capital cost beats per-gigabyte monthly cloud feesnot Ceph

Where each one falls short

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

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.

Cloudian

You operate the hardware, so capacity planning, firmware, node failures and a refresh cycle every five years return as costs that a public cloud bill hides.
Per-terabyte licensing plus servers means high upfront cost, and the crossover point against public cloud only arrives at meaningful scale, typically hundreds of terabytes and up.
S3 compatibility is high but not identical to Amazon, so occasional applications depending on newer or less common S3 features need testing rather than assumption.
Small deployments need a minimum node count for erasure coding to be meaningful, which sets a practical floor on entry cost regardless of how little data you have.
Performance is object storage performance, so it is not a substitute for block or high-throughput file storage and buyers occasionally deploy it for the wrong workload.

Pricing, plan by plan

Ceph

Free

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

Cloudian

On request

Cloudian HyperStore$undefined/year
- Licensed per usable terabyte, subscription or perpetual
- Software-only on your hardware or as Cloudian appliances
- No egress or API request charges

Which should you pick?

Choose Ceph if

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

Ceph review

Choose Cloudian if

You need s3 api compatibility.
You work on Linux.
You also want object lock.

Cloudian review

Questions people ask

Is Ceph or Cloudian better?: Neither clearly leads. Ceph starts at Free and Cloudian at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Ceph or Cloudian?: Ceph has a free tier; the other does not. Paid plans start at Free for Ceph and On request for Cloudian.
Does Ceph or Cloudian run on more platforms?: Both run on Linux, so platform support will not decide this one for you.
Can I use Ceph for free?: Yes. Ceph has a free tier, so you can try it without paying. Cloudian starts at On request.
What is Ceph best used for?: Ceph is most often used for backing a private cloud where virtual machine disks, shared filesystems and an s3 endpoint all need the same hardware, growing past the point where a proprietary array upgrade costs more than a rack of commodity servers, research and media environments with petabytes of data and staff who can operate storage, providing an s3 endpoint on premises with multi site replication under your own control. Of those, backing a private cloud where virtual machine disks, shared filesystems and an s3 endpoint all need the same hardware and growing past the point where a proprietary array upgrade costs more than a rack of commodity servers are not what Cloudian is typically brought in for.
What can Ceph do that Cloudian cannot?: Ceph covers RADOS object store, RADOS Gateway, RBD block devices, CephFS. Cloudian covers S3 API compatibility, Object Lock, Erasure coding, Multi-tenancy.

Answered from the vendors’ own pages

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.

Cloudian: Does object lock really stop ransomware deleting backups?

Within the retention period, yes, provided the lock is set in compliance mode. That is precisely why it is the common answer to backup-targeting ransomware.

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.

Cloudian: Are there egress charges?

No. That is the central cost argument against public cloud object storage, and it only becomes visible when you have to restore at volume.

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.

Cloudian: Can we use our own servers?

Yes, HyperStore is software-defined and runs on qualified commodity hardware, or you can buy Cloudian appliances if you would rather not certify your own.

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.

Ceph vs Cloudian

Ceph

Cloudian

The short version

Where they differ

What each one covers

Only in Ceph

Only in Cloudian

What people use each for

Ceph

Cloudian

Where each one falls short

Ceph

Cloudian

Pricing, plan by plan

Ceph

Cloudian

Which should you pick?

Choose Ceph if

Choose Cloudian if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Ceph

More on Cloudian

Keep looking

Other head to heads