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Linkerd vs Portworx Backup

Linkerd logo

Linkerd

Cloud

Lightweight service mesh for Kubernetes

From
Free
Rated
-
Full reviewWebsite
Portworx Backup logo

Portworx Backup

Backup

Kubernetes application backup with a free tier up to one terabyte

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Linkerd deliberately fewer features than Istio, so complex routing and multi-cluster policy can hit its limits; Portworx Backup the paid tier carries a 1,000 node hour monthly minimum, so a cluster that only needs occasional protection still pays a floor.
  • They diverge on capability: Linkerd covers Automatic mutual TLS, Portworx Backup covers Application-level backup.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Linkerd and Portworx Backup actually diverge.

Attributes where Linkerd and Portworx Backup differ
AttributeLinkerdPortworx Backup
Pricing modelOpen source, no licence feePer node hour
PlatformsKubernetes, LinuxWeb, Linux
CategoryCloudBackup

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

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 Linkerd

  • Automatic mutual TLS
  • Golden metrics
  • Rust micro-proxy
  • Traffic policy

Only in Portworx Backup

  • Application-level backup
  • Any CSI provider
  • Cross-cluster restore
  • Namespace and label selection
  • Scheduled policies
  • Role-based access
  • Free tier

What people use each for

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

Linkerd

  • Adding mutual TLS between services to satisfy a compliance requirementnot Portworx Backup
  • Getting per-service latency and success rates without instrumenting applicationsnot Portworx Backup
  • Progressive delivery with traffic splitting during rolloutsnot Portworx Backup

Portworx Backup

  • A platform team running Velero that needs an accountable vendor for restore failuresnot Linkerd
  • Protecting Kubernetes applications across EKS, GKE and on premises clusters under one policy setnot Linkerd
  • Restoring a namespace into a different cloud provider as a disaster recovery testnot Linkerd
  • A small team that wants real Kubernetes backup within the free one terabyte tier before committing budgetnot Linkerd

Where each one falls short

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

Linkerd

  • Deliberately fewer features than Istio, so complex routing and multi-cluster policy can hit its limits
  • Kubernetes only, with no story for workloads outside a cluster
  • A sidecar per pod is still real memory and latency overhead, however small, and a mesh is another layer to debug during incidents

Portworx Backup

  • The paid tier carries a 1,000 node hour monthly minimum, so a cluster that only needs occasional protection still pays a floor.
  • It is licensed separately from Portworx Enterprise, so organisations that assumed storage and backup came together find a second subscription in the quote.
  • The free tier caps at one terabyte of protected data, which is quickly exceeded by any database of consequence and forces a jump straight to the minimum commitment.
  • Backup targets are object stores you provide, so restore egress charges from your cloud provider are outside the vendor price and appear during a recovery rather than in procurement.
  • Application-consistent backup of databases still depends on correct pre and post hooks, so the product does not remove the requirement to understand and rehearse your own restore ordering.

Pricing, plan by plan

Linkerd

Free
  • LinkerdFree
    • Full functionality
    • No usage limits
    • Community support

Portworx Backup

Free
  • FreeFree
    • Up to one terabyte of protected data
    • No feature restrictions
    • Fully managed service
  • Portworx Backup$0.2/node hour
    • Minimum 1,000 node hours per month
    • Unlimited protected capacity
    • Any Container Storage Interface provider

Which should you pick?

Choose Linkerd if

  • You need automatic mutual tls.
  • You want to start without paying.
  • You work on Kubernetes, Linux.
  • You also want golden metrics.
Linkerd review

Choose Portworx Backup if

  • You need application-level backup.
  • You want to start without paying.
  • You work on Web, Linux.
  • You also want any csi provider.
Portworx Backup review

Questions people ask

Is Linkerd or Portworx Backup better?
Neither clearly leads. Linkerd starts at Free and Portworx Backup at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Linkerd or Portworx Backup?
Linkerd starts at Free and Portworx Backup at Free.
Does Linkerd or Portworx Backup run on more platforms?
Linkerd runs on Kubernetes, Linux. Portworx Backup runs on Web, Linux.
Can I use Linkerd for free?
Both have a free tier, so you can try either at no cost before committing.
What is Linkerd best used for?
Linkerd is most often used for adding mutual tls between services to satisfy a compliance requirement, getting per-service latency and success rates without instrumenting applications, progressive delivery with traffic splitting during rollouts. Of those, adding mutual tls between services to satisfy a compliance requirement and getting per-service latency and success rates without instrumenting applications are not what Portworx Backup is typically brought in for.
What can Linkerd do that Portworx Backup cannot?
Linkerd covers Automatic mutual TLS, Golden metrics, Rust micro-proxy, Traffic policy. Portworx Backup covers Application-level backup, Any CSI provider, Cross-cluster restore, Namespace and label selection.

Answered from the vendors’ own pages

Linkerd: Is Linkerd free?

The open-source project is free. Buoyant, its maintainer, sells enterprise distributions and support separately.

Portworx Backup: Is the free tier real?

Yes, up to one terabyte of protected data with no feature restrictions as a managed service. It is a usable production tier for small footprints, not a trial.

Linkerd: Linkerd or Istio?

Linkerd trades features for simplicity, with a smaller proxy and far less configuration. Istio is more capable and correspondingly more work to run.

Portworx Backup: Does it only protect Portworx volumes?

No. It works across Container Storage Interface providers, including cloud provider storage and other vendors' drivers.

Linkerd: Do I need a service mesh at all?

Only if you need mutual TLS, uniform retries or per-service traffic metrics across many services. For a handful of services it is usually more machinery than the problem justifies.

Portworx Backup: Is it included with Portworx Enterprise?

No. It is a separate licence at 0.20 USD per node hour with its own minimum.

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