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Cloud · head to head

Longhorn vs Portworx

Longhorn logo

Longhorn

Cloud

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

From
Free
Rated
-
Portworx logo

Portworx

Cloud

Kubernetes-native storage and data services, priced by the node hour

From
$0.33/node hour
Rated
-

The short version

  • Only Longhorn has a free tier, so it costs nothing to try first.
  • Each has a real cost: 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.; Portworx bare metal nodes are charged at 1.11 USD per node hour against 0.33 for virtual nodes, so a bare metal cluster costs more than three times a virtualised one for identical capability.
  • They diverge on capability: Longhorn covers Per-volume controllers, Portworx covers Container-native volumes.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Longhorn and Portworx actually diverge.

Attributes where Longhorn and Portworx differ
AttributeLonghornPortworx
Starting priceFree$0.33/node hour
Pricing modelOpen source, no licence feePer node hour
Free tierYesNo
PlatformsLinux, KubernetesLinux

Identical on both: 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 Longhorn

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

Only in Portworx

  • Container-native volumes
  • Failure domain placement
  • Volume encryption
  • Database automation
  • Disaster recovery
  • Autopilot capacity management
  • Hardware independence

What people use each for

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

Longhorn

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

Portworx

  • Running a production PostgreSQL or Cassandra cluster on Kubernetes and needing the data to survive node lossnot Longhorn
  • A platform team offering self-service databases to developers on an internal Kubernetes platformnot Longhorn
  • Failing over stateful applications between clusters in different regions as a disaster recovery positionnot Longhorn
  • An OpenShift estate where the built-in storage option does not meet the availability requirement for stateful setsnot Longhorn

Where each one falls short

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

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.

Portworx

  • Bare metal nodes are charged at 1.11 USD per node hour against 0.33 for virtual nodes, so a bare metal cluster costs more than three times a virtualised one for identical capability.
  • A 1,000 node hour monthly minimum applies, which means small or intermittent clusters pay for capacity they do not consume.
  • Replicating volumes across nodes consumes real capacity and network bandwidth, so the underlying infrastructure cost rises alongside the licence in a way the node hour rate does not show.
  • Pure Storage ownership means roadmap priorities are set by an array vendor, and buyers should confirm that hardware independence remains contractual rather than assumed.
  • Operating it well requires Kubernetes storage expertise, and teams that adopted Kubernetes to simplify operations often find they have added a distributed storage system to run.

Pricing, plan by plan

Longhorn

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

Portworx

$0.33/node hour
  • Portworx Enterprise on virtual machine nodes$0.33/node hour
    • Minimum 1,000 node hours per month
    • Replicated persistent volumes
    • Encryption and disaster recovery
  • Portworx Enterprise on bare metal nodes$1.11/node hour
    • Minimum 1,000 node hours per month
    • Same capabilities on bare metal clusters
    • Higher rate reflects node density

Which should you pick?

Choose Longhorn if

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

Choose Portworx if

  • You need container-native volumes.
  • You work on Linux.
  • You also want failure domain placement.

Questions people ask

Is Longhorn or Portworx better?
Neither clearly leads. Longhorn starts at Free and Portworx at $0.33/node hour, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Longhorn or Portworx?
Longhorn has a free tier; the other does not. Paid plans start at Free for Longhorn and $0.33/node hour for Portworx.
Does Longhorn or Portworx run on more platforms?
Longhorn runs on Linux, Kubernetes. Portworx runs on Linux.
Can I use Longhorn for free?
Yes. Longhorn has a free tier, so you can try it without paying. Portworx starts at $0.33/node hour.
What is Longhorn best used for?
Longhorn is most often used for an on-premises kubernetes cluster with local disks and no san that needs replicated persistent volumes, edge sites where shipping a storage array is impractical and three nodes is the whole cluster, a k3s deployment where the storage layer must be light enough to run alongside the workloads, a team that wants snapshots and s3 backups of persistent volumes without paying per-node storage licences. Of those, an on-premises kubernetes cluster with local disks and no san that needs replicated persistent volumes and edge sites where shipping a storage array is impractical and three nodes is the whole cluster are not what Portworx is typically brought in for.
What can Longhorn do that Portworx cannot?
Longhorn covers Per-volume controllers, Synchronous replication, Snapshots and backups, Volume expansion. Portworx covers Container-native volumes, Failure domain placement, Volume encryption, Database automation.

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.

Portworx: Is Portworx tied to Pure Storage hardware?

No. It runs on any Kubernetes distribution over any underlying storage, though Pure has owned it since 2020 and sets the roadmap.

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.

Portworx: What does a real cluster cost?

At 0.33 USD per virtual node hour, twenty nodes running continuously is roughly 4,800 USD a month. Bare metal at 1.11 USD per node hour is around 16,000 USD for the same node count.

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.

Portworx: Is backup included?

No. Portworx Backup is a separately priced product covering Kubernetes application backup.

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