Persistent Disk

Name: Persistent Disk
Brand: Google

Persistent Disk is a network-attached block storage service for Compute Engine VMs and Kubernetes nodes that provides VM-attached disk semantics decoupled from VM lifecycle (detach/reattach, snapshot, resize) and distributes data across physical disks for redundancy.

Est 1998|Valuation $4081.3B|Raised $26.1M

LinkedIn 41.9M|Website|Web traffic 3.3M|FTEs 198,933|HQ Mountain View, California, US

01Competitive Landscape

| Aspect | Persistent Disk (GCP) | Amazon EBS (AWS) | Azure Managed Disks (Microsoft) | |--------|---------------|----------------|----------------| | Starting Price | Varies by disk type and region; published example pricing for a mid-sized standard PD in a specific region is available from the vendor | Varies by volume type/region; billed per GB-month; some types charge separately for extra IOPS/throughput | Varies by disk type; priced by tiers that accommodate disk size; billed hourly | | Best For | Durable block storage for many Compute Engine and GKE workloads, especially where Hyperdisk is not available | Broad ecosystem adoption with multiple volume choices for general purpose and provisioned IOPS use cases | Integration with Azure VM ecosystem; tiered disks and newer configurable performance options | | Key Strength | Operational model that integrates with Compute Engine/GKE; supports encryption options including CMEK and CSEK; predictable capacity-based billing | Rich volume portfolio; widely understood operational behavior; broad third-party tooling and patterns | Tiering and redundancy options (including ZRS in some regions); newer models support separate performance dimensions | | Key Weakness | Performance is coupled to disk size and VM limits; multi-writer is limited/preview; can be less cost-efficient where independent performance provisioning is required | Complexity and cost can increase with advanced types; tuning choices can be confusing | Tier-based sizing can cause step-function costs; performance troubleshooting and throttling issues are reported in community forums | - Direct competitors and their key differentiators - AWS EBS - Multiple volume types with different performance/cost trade-offs; some types separate IOPS/throughput from capacity. - Azure Managed Disks - Tiered disk models and newer disk types that allow capacity and performance configuration to be treated separately in some cases. - Google Hyperdisk (internal alternative/next stage) - Positioned to support configurable IOPS/throughput independent of capacity and broader multi-attach scenarios compared with PD. - Feature comparison: where does Persistent Disk excel vs lag behind? - Excels - Mature block storage option for supported VM families with integration into GCP platform tooling - Regional PD provides synchronous replication across zones in a region for HA patterns - Encryption options include default managed encryption and customer-managed/supplied keys - Lags - Compared with newer performance-configurable block storage models (Hyperdisk, AWS gp3-style, Azure Premium SSD v2), PD provides less independent performance provisioning relative to capacity - Shared-disk semantics are constrained; multi-writer PD functionality is limited and subject to vendor cautions about file system suitability - Pricing comparison: value proposition vs alternatives - PD’s capacity-based pricing can be straightforward for many workloads, but it can lead to overprovisioning when the primary need is performance rather than storage space. - Azure and AWS offer models that can separate performance provisioning from capacity, which may be more cost-effective for workloads requiring high performance at low capacity. - Customer testimonials comparing this product to competitors - Publicly accessible sources in this research session did not yield extensive direct comparisons from verified review platforms. Community comparisons are often architectural (for example, remote block storage vs local SSD) rather than direct vendor head-to-head quotes. - Market share and adoption trends - Market share and PD-specific adoption metrics are not quantified in the publicly available sources consulted in this research session. - When customers choose competitors instead (and why) - AWS EBS is selected when organizations standardize on AWS or when a specific EBS volume type better matches performance/price goals. - Azure Managed Disks are selected when workloads are tightly coupled to Azure services, procurement, and governance. - Hyperdisk on GCP is chosen when independently configurable performance or advanced multi-attach patterns are required.

01Competitive Landscape

Aspect	Persistent Disk (GCP)	Amazon EBS (AWS)	Azure Managed Disks (Microsoft)
Starting Price	Varies by disk type and region; published example pricing for a mid-sized standard PD in a specific region is available from the vendor	Varies by volume type/region; billed per GB-month; some types charge separately for extra IOPS/throughput	Varies by disk type; priced by tiers that accommodate disk size; billed hourly
Best For	Durable block storage for many Compute Engine and GKE workloads, especially where Hyperdisk is not available	Broad ecosystem adoption with multiple volume choices for general purpose and provisioned IOPS use cases	Integration with Azure VM ecosystem; tiered disks and newer configurable performance options
Key Strength	Operational model that integrates with Compute Engine/GKE; supports encryption options including CMEK and CSEK; predictable capacity-based billing	Rich volume portfolio; widely understood operational behavior; broad third-party tooling and patterns	Tiering and redundancy options (including ZRS in some regions); newer models support separate performance dimensions
Key Weakness	Performance is coupled to disk size and VM limits; multi-writer is limited/preview; can be less cost-efficient where independent performance provisioning is required	Complexity and cost can increase with advanced types; tuning choices can be confusing	Tier-based sizing can cause step-function costs; performance troubleshooting and throttling issues are reported in community forums

Direct competitors and their key differentiators
- AWS EBS
  - Multiple volume types with different performance/cost trade-offs; some types separate IOPS/throughput from capacity.
- Azure Managed Disks
  - Tiered disk models and newer disk types that allow capacity and performance configuration to be treated separately in some cases.
- Google Hyperdisk (internal alternative/next stage)
  - Positioned to support configurable IOPS/throughput independent of capacity and broader multi-attach scenarios compared with PD.
Feature comparison: where does Persistent Disk excel vs lag behind?
- Excels
  - Mature block storage option for supported VM families with integration into GCP platform tooling
  - Regional PD provides synchronous replication across zones in a region for HA patterns
  - Encryption options include default managed encryption and customer-managed/supplied keys
- Lags
  - Compared with newer performance-configurable block storage models (Hyperdisk, AWS gp3-style, Azure Premium SSD v2), PD provides less independent performance provisioning relative to capacity
  - Shared-disk semantics are constrained; multi-writer PD functionality is limited and subject to vendor cautions about file system suitability
Pricing comparison: value proposition vs alternatives
- PD’s capacity-based pricing can be straightforward for many workloads, but it can lead to overprovisioning when the primary need is performance rather than storage space.
- Azure and AWS offer models that can separate performance provisioning from capacity, which may be more cost-effective for workloads requiring high performance at low capacity.
Customer testimonials comparing this product to competitors
- Publicly accessible sources in this research session did not yield extensive direct comparisons from verified review platforms. Community comparisons are often architectural (for example, remote block storage vs local SSD) rather than direct vendor head-to-head quotes.
Market share and adoption trends
- Market share and PD-specific adoption metrics are not quantified in the publicly available sources consulted in this research session.
When customers choose competitors instead (and why)
- AWS EBS is selected when organizations standardize on AWS or when a specific EBS volume type better matches performance/price goals.
- Azure Managed Disks are selected when workloads are tightly coupled to Azure services, procurement, and governance.
- Hyperdisk on GCP is chosen when independently configurable performance or advanced multi-attach patterns are required.

Aspect

Persistent Disk (GCP)

Amazon EBS (AWS)

Azure Managed Disks (Microsoft)

Starting Price

Varies by disk type and region; published example pricing for a mid-sized standard PD in a specific region is available from the vendor

Varies by volume type/region; billed per GB-month; some types charge separately for extra IOPS/throughput

Varies by disk type; priced by tiers that accommodate disk size; billed hourly

Best For

Durable block storage for many Compute Engine and GKE workloads, especially where Hyperdisk is not available

Broad ecosystem adoption with multiple volume choices for general purpose and provisioned IOPS use cases

Integration with Azure VM ecosystem; tiered disks and newer configurable performance options

Key Strength

Operational model that integrates with Compute Engine/GKE; supports encryption options including CMEK and CSEK; predictable capacity-based billing

Rich volume portfolio; widely understood operational behavior; broad third-party tooling and patterns

Tiering and redundancy options (including ZRS in some regions); newer models support separate performance dimensions

Key Weakness

Performance is coupled to disk size and VM limits; multi-writer is limited/preview; can be less cost-efficient where independent performance provisioning is required

Complexity and cost can increase with advanced types; tuning choices can be confusing

Tier-based sizing can cause step-function costs; performance troubleshooting and throttling issues are reported in community forums

Persistent Disk

01Competitive Landscape

02Market Map

01Competitive Landscape

02Market Map