File Storage · head to head
Ceph vs Microsoft OneDrive
Ceph
File Storage
Open source distributed storage providing object, block and file from one cluster
- From
- Free
- Rated
- -
Microsoft OneDrive
File Storage
Cloud storage that comes with Microsoft 365
- From
- $1.99/month
- Rated
- -
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.; Microsoft OneDrive free tier not available; minimum cost is $1.99/month for 100 GB storage
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which Ceph and Microsoft OneDrive actually diverge.
| Attribute | Ceph | Microsoft OneDrive |
|---|---|---|
| Starting price | Free | $1.99/month |
| Pricing model | Open source, no licence fee | subscription |
| Free tier | Yes | No |
| Platforms | Linux | Web |
Identical on both: 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 Microsoft OneDrive
Nothing recorded that Ceph does not also cover.
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 Microsoft OneDrive
- Growing past the point where a proprietary array upgrade costs more than a rack of commodity serversnot Microsoft OneDrive
- Research and media environments with petabytes of data and staff who can operate storagenot Microsoft OneDrive
- Providing an S3 endpoint on premises with multi site replication under your own controlnot Microsoft OneDrive
Microsoft OneDrive
- Personal cloud storage and file backupnot Ceph
- Family file sharing and collaborationnot Ceph
- Business document managementnot Ceph
- Enterprise ransomware protectionnot 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.
Microsoft OneDrive
- Free tier not available; minimum cost is $1.99/month for 100 GB storage
- Higher-tier plans required for advanced Copilot features
- Per-user pricing increases significantly with family plans
Pricing, plan by plan
Ceph
Free- CephFree
- Full functionality, no capacity limit
- Object, block and file interfaces
- Community support via mailing list and Slack
Microsoft OneDrive
$1.99/month- Microsoft 365 Basic$1.99/month
- 100 GB cloud storage
- Outlook access
- OneDrive access
- Microsoft 365 Personal$9.99/month
- 1 TB cloud storage
- Desktop Office apps (Word, Excel, PowerPoint, Outlook, OneNote)
- Copilot features
- Microsoft 365 Family$12.99/month
- Up to 6 TB cloud storage (1 TB per person)
- 1-6 users supported
- Same apps and features as Personal
- Microsoft 365 Premium$19.99/month
- Up to 6 TB cloud storage (1 TB per person)
- 1-6 users
- Extensive Copilot feature access
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.
Choose Microsoft OneDrive if
Nothing in the data separates Microsoft OneDrive from Ceph on the points above - pick on price and on how each one feels to use.
Questions people ask
- Is Ceph or Microsoft OneDrive better?
- Neither clearly leads. Ceph starts at Free and Microsoft OneDrive at $1.99/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Ceph or Microsoft OneDrive?
- Ceph has a free tier; the other does not. Paid plans start at Free for Ceph and $1.99/month for Microsoft OneDrive.
- Does Ceph or Microsoft OneDrive run on more platforms?
- Ceph runs on Linux. Microsoft OneDrive runs on Web.
- Can I use Ceph for free?
- Yes. Ceph has a free tier, so you can try it without paying. Microsoft OneDrive starts at $1.99/month.
- 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 Microsoft OneDrive is typically brought in for.
- What can Ceph do that Microsoft OneDrive cannot?
- Ceph covers RADOS object store, RADOS Gateway, RBD block devices, CephFS.
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.
Microsoft OneDrive: How much does Microsoft OneDrive cost?
OneDrive pricing starts at $1.99/month for Microsoft 365 Basic with 100 GB storage. Personal plan costs $9.99/month with 1 TB storage. Family plan at $12.99/month supports 1-6 people with up to 6 TB total storage. Premium tier at $19.99/month adds advanced Copilot and AI features.
SourceCeph: 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.
Microsoft OneDrive: Is there a free version of Microsoft OneDrive?
Microsoft does not offer a free OneDrive plan through their paid subscription tiers. However, users with Microsoft accounts receive 5 GB of complimentary OneDrive storage at no cost when creating a Microsoft account.
SourceCeph: Can I buy support?
Yes. IBM sells IBM Storage Ceph and SUSE and others have offered supported builds; the upstream project itself is free.
Microsoft OneDrive: What security features are included in OneDrive plans?
All OneDrive plans include ransomware detection with files restore, password-protected and expiring-link file sharing settings, and anywhere editing with real-time collaboration. Premium and higher tiers offer exclusive agentic AI security features.
SourceCeph: 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.
Related pages
More on Microsoft OneDrive
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