Cloud · head to head
Longhorn vs Portworx

Longhorn
Cloud
Open source distributed block storage for Kubernetes, incubating at the CNCF
- From
- Free
- Rated
- -

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.
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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