Softwr

Cloud · head to head

IBM Cloud vs Longhorn

IBM Cloud logo

IBM Cloud

Cloud

Enterprise cloud solutions from a trusted partner

From
Free
Rated
-
Full reviewWebsite
Longhorn logo

Longhorn

Cloud

Open source distributed block storage for Kubernetes, incubating at the CNCF

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: IBM Cloud the USD 200 starter cloud credit is valid for 30 days only; Longhorn there is no vendor and no SLA, so a production incident at three in the morning is your own problem unless you buy SUSE Rancher Prime support separately.
  • They diverge on capability: IBM Cloud covers Virtual Servers, Longhorn covers Per-volume controllers.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which IBM Cloud and Longhorn actually diverge.

Attributes where IBM Cloud and Longhorn differ
AttributeIBM CloudLonghorn
Pricing modelusage-basedOpen source, no licence fee
PlatformsLinux, Windows, Api, CliLinux, Kubernetes
Founded2013Unknown

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

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 IBM Cloud

  • Virtual Servers
  • Bare Metal
  • Cloud Foundry
  • Kubernetes
  • Watson AI
  • Blockchain
  • Databases
  • API Gateway

Only in Longhorn

  • Per-volume controllers
  • Synchronous replication
  • Snapshots and backups
  • Volume expansion
  • Disaster recovery volumes
  • Web interface

What people use each for

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

IBM Cloud

  • Running containerized and VM workloads on IBM's public cloudnot Longhorn
  • Building on Watson APIs and IBM middleware as managed servicesnot Longhorn

Longhorn

  • An on-premises Kubernetes cluster with local disks and no SAN that needs replicated persistent volumesnot IBM Cloud
  • Edge sites where shipping a storage array is impractical and three nodes is the whole clusternot IBM Cloud
  • A K3s deployment where the storage layer must be light enough to run alongside the workloadsnot IBM Cloud
  • A team that wants snapshots and S3 backups of persistent volumes without paying per-node storage licencesnot IBM Cloud

Where each one falls short

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

IBM Cloud

  • The USD 200 starter cloud credit is valid for 30 days only
  • The larger promotional credits are time boxed: USD 1,000 for Bare Metal Servers for VPC over 120 days, USD 2,500 for Power Virtual Server over 90 days, and USD 5,000 for Backup and Recovery over 90 days
  • The USD 5,000 Backup and Recovery promotion is valid for new clients only and requires a checkout promo code
  • The listed promotions carry an expiry date of 31 December 2026
  • Beyond the free tier the account is pay as you go, so cost tracks usage with no published cap

Longhorn

  • There is no vendor and no SLA, so a production incident at three in the morning is your own problem unless you buy SUSE Rancher Prime support separately.
  • Synchronous replication across nodes means write latency depends on the slowest replica and the network between nodes, which makes it a poor fit for latency-sensitive databases.
  • Every replica is a full copy, so three-way replication consumes three times the raw capacity, unlike erasure-coded systems that are far more space efficient.
  • It is designed for block storage on modest clusters and does not scale to the node counts or throughput that Ceph or a commercial array handles, so growth eventually forces a migration.
  • Recovery from certain degraded states, such as a volume stuck detaching or replicas failing to rebuild, requires manual intervention and knowledge of Longhorn internals that is not widely held.

Pricing, plan by plan

IBM Cloud

Free
  • Lite PlanFree
    • Free services
    • Limited resources
    • 30-day trial
  • Standard PlanFree
    • Pay-as-you-go
    • Enterprise support
    • Advanced services

Longhorn

Free
  • LonghornFree
    • Apache 2.0 licensed, no licence fee
    • Community support via GitHub and Slack only
    • No vendor SLA or escalation path

Which should you pick?

Choose IBM Cloud if

  • You need virtual servers.
  • You want to start without paying.
  • You work on Linux, Windows, Api, Cli.
  • You also want bare metal.
IBM Cloud review

Choose Longhorn if

  • You need per-volume controllers.
  • You want to start without paying.
  • You work on Linux, Kubernetes.
  • You also want synchronous replication.
Longhorn review

Questions people ask

Is IBM Cloud or Longhorn better?
Neither clearly leads. IBM Cloud starts at Free and Longhorn at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, IBM Cloud or Longhorn?
IBM Cloud starts at Free and Longhorn at Free.
Does IBM Cloud or Longhorn run on more platforms?
IBM Cloud runs on Linux, Windows, Api, Cli. Longhorn runs on Linux, Kubernetes.
Can I use IBM Cloud for free?
Both have a free tier, so you can try either at no cost before committing.
What is IBM Cloud best used for?
IBM Cloud is most often used for running containerized and vm workloads on ibm's public cloud, building on watson apis and ibm middleware as managed services. Of those, running containerized and vm workloads on ibm's public cloud and building on watson apis and ibm middleware as managed services are not what Longhorn is typically brought in for.
What can IBM Cloud do that Longhorn cannot?
IBM Cloud covers Virtual Servers, Bare Metal, Cloud Foundry, Kubernetes. Longhorn covers Per-volume controllers, Synchronous replication, Snapshots and backups, Volume expansion.

Answered from the vendors’ own pages

Longhorn: Who do we call when it breaks?

Nobody, unless you buy SUSE Rancher Prime, which includes commercial support for Longhorn. This is the decisive question for production use.

Longhorn: How much capacity does replication cost?

Full copies, so three replicas means three times the raw capacity. Budget accordingly rather than assuming erasure coding efficiency.

Longhorn: Is it suitable for production databases?

For modest workloads yes, but synchronous replication adds write latency and high-transaction databases usually want something faster.

Share

Related pages

More on IBM Cloud

More on Longhorn

Keep looking

Other head to heads