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Head-to-head · Block Storage Services

Google Persistent Disk vs Portworx Enterprise

  • Updated Oct 2026
  • Both researched from official sources
  • 7 checks side by side
Higher score Google Persistent Disk #2 in Block Storage Services 9.3/10 Free plan Free plan✓ 4 of 4 features Visit Google Cloud
Portworx Enterprise #20 in Block Storage Services 7.4/10 Pricing on request · 30-day trial Free trial✓ 4 of 4 features Visit Portworx

Google Persistent Disk leads on 2 checks, Portworx Enterprise on 1, and 4 are even. Who comes out ahead on the 7 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreGoogle Persistent Disk · 9.3/10
  • Free planonly Google Persistent Disk
  • Free trialonly Portworx Enterprise

Google Persistent Disk scores higher on our rubric for block storage services: 9.3 against 7.4 out of 10; our editors rank them #2 and #20.

Google Persistent Disk offers free plan; Portworx Enterprise doesn't. Google Persistent Disk leads on max volume size: 64 TB versus 40 TB. Portworx Enterprise leads on maximum iops: 1e+08 IOPS versus 15000 IOPS.

Google Persistent Disk is the better fit for low-cost Compute Engine storage. Portworx Enterprise is the better fit for enterprise Kubernetes storage.

  • Google Persistent Disk fits best

    Low-cost Compute Engine storage

  • Portworx Enterprise fits best

    Enterprise Kubernetes storage

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Google Persistent Disk 9.3/10 Visit ↗ Portworx Enterprise 7.4/10 Visit ↗
At a glance
Editor score 9.3 7.4
Ranking #2 in Block Storage Services #20 in Block Storage Services
Best for Low-cost Compute Engine storage Enterprise Kubernetes storage
Pricing model Free plan + paid Paid
Starting price — —
Free plan ✓ (best) —
Free trial — 30 days
Deployment Cloud Cloud, Self-hosted
Platforms Linux, Windows Web
Support Docs Phone, Email, Community, Docs · 24/7
Integrations 3 integrations 9 integrations
Built for Small business, Mid-market, Enterprise Enterprise
Features Google Persistent Disk 4/4 · Portworx Enterprise 4/4
Snapshots ✓ ✓
Multi-attach ✓ ✓
Encryption ✓ ✓
Cross-region replication ✓ ✓
Specs
Max volume size 64 TB (best) 40 TB
Volume types Standard, Balanced, SSD, Extreme PX-StoreV1 filesystem, PX-StoreV2 block, FlashArray block
Maximum IOPS 15000 IOPS 1e+08 IOPS (best)
Our review
Pros
  • Free tier includes up to 30 GB of standard Persistent Disk storage
  • Supports online resizing, incremental snapshots, and automatic encryption
  • Offers Multi-writer mode plus regional and cross-region replication
  • Automates Kubernetes volume provisioning, resizing, and policy placement
  • Combines replication, snapshots, encryption, and disaster recovery
  • Supports Kubernetes platforms, KubeVirt, FlashArray, and FlashBlade
Cons
  • Designed primarily for Compute Engine workloads
  • Pricing varies by region and usage
  • Maximum IOPS depends on disk size and attached VM machine type
  • Paid pricing uses a contact-sales model
  • No permanent free plan is available
  • Maximum volume size is 40 TiB
Our verdict

Google Persistent Disk provides durable, network-attached block storage for Google Cloud Compute Engine virtual machines and containers. It supports boot and data disks, general-purpose applications, databases, and large…

Read the review →

Portworx Enterprise is a cloud-native storage and data management platform for organizations running production Kubernetes applications. It provides persistent storage automation across cloud, on-premises, hybrid, and edge environments,…

Read the review →
  1. Google Persistent DiskBlock Storage Services 9.3Free plan
  2. Portworx EnterpriseBlock Storage Services 7.4Pricing on request · 30-day trial

Strengths and trade-offs

  • Google Persistent Disk — where it wins

    • Free tier includes up to 30 GB of standard Persistent Disk storage
    • Supports online resizing, incremental snapshots, and automatic encryption
    • Offers Multi-writer mode plus regional and cross-region replication

    Where it doesn't

    • Designed primarily for Compute Engine workloads
    • Pricing varies by region and usage
    • Maximum IOPS depends on disk size and attached VM machine type

  • Portworx Enterprise — where it wins

    • Automates Kubernetes volume provisioning, resizing, and policy placement
    • Combines replication, snapshots, encryption, and disaster recovery
    • Supports Kubernetes platforms, KubeVirt, FlashArray, and FlashBlade

    Where it doesn't

    • Paid pricing uses a contact-sales model
    • No permanent free plan is available
    • Maximum volume size is 40 TiB
  • Google Persistent Disk9.3/10 · Free plan

    A flexible Compute Engine storage service with free capacity, snapshots, encryption, and replication.

    Visit Google CloudFull verdict →
  • Portworx Enterprise7.4/10 · Pricing on request · 30-day trial

    A resilient Kubernetes storage platform for production stateful workloads.

    Visit PortworxFull verdict →

More comparisons

All block storage services comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update