PANZURA CLOUDFS® MIGRATION PATH
Your NetApp GFC Infrastructure is Now Unsupported.
NetApp announced the End of Availability (EOA) for Global File Cache on May 31, 2024, and the edge caching service was removed on August 7, 2024, from the BlueXP platform (now NetApp Console). Organizations still running GFC are operating on legacy infrastructure without vendor support, security patches, or cloud API updates—creating mounting operational and security risk.
While NetApp directs customers toward FlexCache or FlexGroup (Volume Caching) as alternatives, these technologies are not designed for high-performance global collaboration. Only Panzura CloudFS delivers the real-time global locking and AI-powered threat protection your distributed workflows require.
What Actually Happened?
Your organization invested in NetApp Global File Cache because it solved a real problem—distributed collaboration without version conflicts. GFC delivered centralized data control, local performance, and file locking that prevented costly overwrites. Then NetApp removed Edge Caching from BlueXP entirely. No migration path. No direct replacement.
| The platform your distributed teams depend on is now unsupported infrastructure. This is a ticking clock. The question isn't whether to migrate, but where. |
Sources:
- NetApp Console Release Notes (Edge caching removal)
- NetApp BlueXP Edge Caching Documentation
RISK ASSESSMENT
The Cost of Staying Unsupported
Every day on legacy GFC infrastructure compounds operational debt and security exposure.
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Risk Category
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Impact of Inaction
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Security Exposure
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No security patches means increasing vulnerability to cyber threats. Ransomware attackers specifically target known unpatched systems.
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Operational Risk
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If a Windows update breaks the GFC agent or cloud orchestration fails, there is no vendor support. Recovery could take days or weeks.
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Supportability Deficit
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No path for vendor troubleshooting or technical assistance. If the system hangs or data becomes inaccessible, your internal IT team is entirely on its own.
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Compliance Gaps
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Running unsupported software may violate security policies, audit requirements, and regulatory mandates like GDPR or HIPAA that require current vendor support.
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Performance Degradation
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Legacy software without maintenance updates inevitably slows as datasets grow. Latency increases over time, frustrating users and stalling workflows.
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Productivity Impact
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Any service disruption stops distributed teams from accessing critical files. For AEC and manufacturing firms, this means project delays and missed deadlines.
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FLEXCACHE ANALYSIS
Why NetApp's Suggested Path Possibly Falls Short
NetApp directs GFC customers to FlexCache or FlexGroup (Volume Caching)—technologies designed primarily for read acceleration rather than high-performance, real-time collaborative locking. The critical issue is what happens when connectivity drops. NetApp's own documentation states: "With global file locking enabled, modifications to the origin volume are suspended until all FlexCache volumes are online." A network hiccup at your smallest location could freeze save operations globally.
File Locking Problem
FlexCache requires all cache sites to maintain connectivity to the origin to permit write operations. Changes to the origin volume are not available until all FlexCache volumes are active.
Failure Cascade Risk
If a single branch office loses internet connectivity, a global write lock potentially engages, freezing save access for the entire organization. One network hiccup shouldn't freeze productivity worldwide.
Lacks Granular Locking
FlexCache lacks the byte-range locking necessary for simultaneous editing and collaboration in critical applications like Autodesk Revit, AutoCAD, and Microsoft Excel across distributed teams.
TECHNICAL COMPARISON MATRIX
CloudFS Advantage: Stop Constantly Working Around System Limitations
The differences between file caching solutions determine whether your distributed teams can actually collaborate in real-time or whether they're constantly working around system limitations. Three architectural decisions matter most: how the system handles locking (file-level vs. byte-range), how it responds to site failures (cascade vs. isolation), and where data lives (expensive block storage vs. cost-efficient object storage). The comparison below examines these capabilities and more across your three options: staying on unsupported GFC, migrating to NetApp's FlexCache, or moving to Panzura CloudFS.
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Capability
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NetApp GFC
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NetApp FlexCache
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Panzura CloudFS
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Locking Architecture
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Central lock server (latency)
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Origin-dependent (brittle)
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Peer-to-peer full mesh (resilient)
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Locking Granularity
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File-level only
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File-level only
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Byte-range (co-authoring)
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WAN Failure Behavior
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Possibly degrades
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Potential global write freeze
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Continues operating
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Backend Storage
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Block (ANF/CVO)
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Block (ONTAP)
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Object (S3/Blob)
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Deduplication Scope
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Wire-level only
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Volume-level
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Global block-level (all sites)
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Data Loss Defense
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Possibly abandoned
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Snapshots (reactive)
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AI-powered Threat Control (proactive)
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RPO
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Possibly hours
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Possibly hours
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60 seconds (standard)
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Cloud Flexibility
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NetApp clouds only
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ONTAP only
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Any cloud or on-premises
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Protocol Support
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SMB only
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SMB, NFS
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SMB, NFS, S3 (native)
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Vendor Support Status
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Discontinued
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Supported
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Supported
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CLOUDFS ARCHITECTURE
Not a Cache Layered on Storage. CloudFS is a Complete Platform.
Cache-on-top-of-storage architectures bolt distributed collaboration onto systems designed for something else. CloudFS is a global file system from the ground up—data lives in cost-efficient object storage while local nodes at each office connect through a peer-to-peer full mesh topology. No central origin bottleneck. No single point of failure. Every node maintains complete metadata for the entire file system and retrieves data directly from wherever it lives—local cache, cloud, or another office. The result: local-speed access to a single authoritative dataset with no synchronization lag or version conflicts.
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Peer-to-Peer Full Mesh
Local nodes connect to both cloud object storage and every other node. Sites retrieve data directly from each other—no single point of failure, no origin dependency.
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Distributed Byte-Range Locking
Multiple users edit different sections of the same file simultaneously. User A modifies the 3rd floor of a Revit model while User B works on the roof—both in the same file, without conflict.
AI-Powered Threat Control
Threat Control for CloudFS delivers ML-based behavioral fingerprinting that proactively detects ransomware and exfiltration. It interdicts threats by disabling compromised users only—no site-wide "blast radius."
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Immutable Object Storage
Write-Once-Read-Many architecture on standard object storage (AWS S3, Azure Blob, GCS). Data never overwritten—ransomware and malware cannot encrypt base data blocks and accidental data loss is a thing of the past.
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FIPS 140-3 Certified Security
The only solution in its category with FIPS 140-3 certification means encryption for data at rest and in transit. Compliance-ready for highly regulated engineering and government environments.
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60-Second Metadata Sync
All nodes synchronize changes across the network every 60 seconds (configurable). Every node holds the complete metadata copy for the entire file system.
COMPETITIVE LANDSCAPE
Why CloudFS Wins Against Alternatives
Every distributed file system vendor has positioned their solution as the natural GFC successor. But architectural differences matter—especially for large CAD files, BIM models, and data-intensive collaborative work. The key differentiator is how each platform handles real-time locking, failure isolation, and technical workflow performance. Panzura CloudFS remains the only platform that solves the “Distributed File Dilemma” without the
“synchronization lag” found in competitor hub-and-spoke models.
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Solution
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Why Panzura CloudFS is Superior
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Nasuni
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Nasuni utilizes a hub-and-spoke architecture that can suffer from latency in heavy collaborative environments. CloudFS’s peer-to-peer mesh provides faster sync and superior byte-range locking.
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CTERA
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CTERA is often positioned as a gateway-heavy solution. CloudFS’s software-defined approach provides greater flexibility across multi-cloud environments without proprietary hardware lock-in.
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Egnyte
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Egnyte is primarily a file sharing (EFSS) solution. It lacks the robust, block-level global locking and high-performance local caching required for large-scale CAD, Revit, or media workloads.
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World-Class Organizations Trust and Rely on Panzura CloudFS

Milwaukee Tool Reduces Time to Market, Increases Team Agility
CloudFS delivered 96.5% storage cost reduction and eliminated tape backup infrastructure entirely.

Hanson Saves Thousands of Hours by Eliminating Manual File Syncing
Hanson saved $62K in year one alone—backup licenses eliminated, maintenance contracts gone, and storage capacity reduced by 75%.

Mead & Hunt Tackles Infra Costs, Collaboration Bottlenecks, Compliance
A leading engineering firm cut IT costs by hundreds of thousands while growing 50% with hybrid cloud transformation.
BYTE-RANGE LOCKING
Applications That Support True Co-Authoring with CloudFS
Byte-range locking with CloudFS is what makes true real-time collaboration possible on complex files. Instead of locking an entire file when someone opens it—forcing colleagues to wait or risk overwriting each other's work—byte-range locking allows different users to edit different sections of the same file simultaneously.
Consider a Revit model of a large building. With file-level locking, only one person can work on it at a time. With CloudFS, your structural engineer in Chicago can modify the foundation while your MEP engineer in London works on the HVAC systems and your architect in Singapore refines the façade. All in the same model file, at the same time, without conflicts. It's the difference between teams working in parallel versus working in sequence. Here's a list of some of the critical applications that support byte-range locking with CloudFS.
| Autodesk Revit | AutoCAD | Civil 3D | Plant 3D |
| Bentley Microstation | Tekla Structures | SolidWorks | Microsoft Excel |
| Adobe Illustrator | ArcGIS | Geopak | Newforma |
NetApp GFC Migration to Panzura CloudFS FAQs
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Why is Panzura CloudFS a better NetApp GFC replacement than FlexCache?
Panzura CloudFS provides the real-time global file locking that GFC customers require, while FlexCache was designed for read acceleration. The critical difference is failure behavior: FlexCache suspends global writes if any cache site loses connectivity, per NetApp's documentation. CloudFS uses a peer-to-peer mesh architecture where individual site failures don't cascade—other locations continue operating normally. CloudFS also provides byte-range locking for true co-authoring, which FlexCache lacks.
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What is the total cost of ownership difference between Panzura CloudFS and NetApp FlexCache?
Panzura CloudFS can reduce 3-year TCO by approximately 50% compared to FlexCache in typical deployments. The savings come from three sources: object storage backend costs roughly 94% less than the block storage FlexCache requires, global deduplication reduces storage footprint by 70-80% across all sites, and CloudFS's immutable architecture eliminates the need for separate backup and disaster recovery solutions. A 10-site, 100TB deployment scenario shows potential savings exceeding $800,000 over three years.
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How does Panzura CloudFS handle WAN failures differently than FlexCache?
Panzura CloudFS isolates failures while FlexCache can cascade them globally. With FlexCache, NetApp's documentation states that global file locking suspends origin modifications until all cache volumes are online—meaning one disconnected branch can freeze saves enterprise-wide. CloudFS's peer-to-peer full mesh architecture has no single point of failure. If one office loses connectivity, all other locations continue working normally with full read-write access to the global file system.
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What applications support byte-range locking with Panzura CloudFS?
CloudFS supports byte-range locking for Autodesk Revit, AutoCAD, Civil 3D, Plant 3D, Bentley MicroStation, Tekla Structures, SolidWorks, Microsoft Excel, Adobe Illustrator, ArcGIS, Geopak, and Newforma. Byte-range locking enables multiple users to edit different sections of the same file simultaneously—for example, one engineer modifying a building's foundation while another works on the HVAC system in the same Revit model, without conflicts or version control issues.
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What is CloudFS's recovery point objective compared to legacy GFC and FlexCache?
CloudFS delivers a 60-second recovery point objective (RPO) as standard, compared to hours with GFC and FlexCache snapshot-based approaches. CloudFS stores data in immutable object storage using a write-once-read-many architecture where new blocks are appended and metadata pointers updated. Recovery from ransomware or data corruption involves resetting metadata to a pre-incident snapshot—a process taking minutes rather than the hours required for traditional restore operations.
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How does CloudFS protect against ransomware compared to NetApp solutions?
CloudFS combines proactive detection with architectural immunity. AI-powered Threat Control uses machine learning behavioral fingerprinting to detect ransomware and data exfiltration in near real-time, interdicting threats by disabling only compromised users rather than freezing entire sites. The immutable object storage backend means ransomware cannot overwrite or encrypt base data blocks. Legacy GFC has no active development or security patches, and FlexCache relies on reactive snapshots without behavioral threat detection.
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What cloud platforms does Panzura CloudFS support for GFC migration?
CloudFS supports AWS S3, Microsoft Azure Blob, Google Cloud Storage, and on-premises S3-compatible object storage. This multi-cloud flexibility contrasts with NetApp GFC, which required Azure NetApp Files or Cloud Volumes ONTAP, and FlexCache, which is limited to ONTAP environments. Organizations can negotiate directly with hyperscalers for volume discounts and avoid vendor lock-in. CloudFS also supports SMB, NFS, and native S3 protocols simultaneously.
This analysis is based on publicly available information, vendor documentation, industry research, and independent technical evaluations. Organizations should conduct their own assessments based on specific requirements and environments. *All product and company names are trademarks or registered® trademarks of their respective holders. Use of those names does not imply any affiliation with or endorsement by their owners. The opinions expressed above are solely those of Panzura LLC as of January 7, 2026, and Panzura LLC makes no commitment to update these opinions after such date.
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