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Alternative

July 29, 2025 by George Crump

Advanced Data Resilience

An advanced data resilience strategy is crucial when evaluating alternatives to VMware. As organizations begin their research, they encounter many hyperconverged infrastructure (HCI) solutions. However, legitimate HCI performance and resilience concerns arise, leading many to hesitate about leaving familiar All-Flash Arrays (AFAs) and traditional three-tier architectures.

The VergeOS white paper, “Solving the HCI High-Performance Problem,” addresses these performance issues. This article focuses on advanced data resilience, detailing how VergeOS resolves common HCI resiliency limitations, enabling organizations to confidently transition away from traditional architectures and AFAs.

Executive Summary – Advanced Data Resilience

VergeOS provides a sophisticated and comprehensive advanced data resilience architecture designed to outperform traditional All-Flash Array (AFA) and Storage Area Network (SAN) solutions. Its multi-layered design includes synchronous replication, High Availability (HA) clustering, ioGuardian fault tolerance, and ioClone snapshot technology, ensuring continuous operations and superior resilience even during severe hardware failures. This technical brief details how VergeOS’s integrated solutions deliver exceptional reliability, backed by compelling real-world use cases and measurable customer outcomes.

Attend our upcoming webinar, How to Replace Your AFA, where we will cover all aspects of VMware and AFA replacement, including migration, performance, and data resiliency.

Advanced Data Resilience Foundation: Drive Protection

Architecture Overview

VergeOS implements synchronous replication to ensure immediate redundancy of data across all cluster nodes. Write operations are confirmed only after successfully synchronizing with all replicas, maintaining strict data consistency and preventing data loss, a significant advancement over traditional RAID systems. This replication occurs in real-time and utilizes global inline deduplication, minimizing storage overhead and network bandwidth requirements. Unlike traditional RAID controllers and external arrays, VergeOS’s replication mechanism efficiently mirrors only unique data segments, enhancing performance and simplifying storage management.

Operational Mechanics of Advanced Data Resilience

When a drive failure occurs, virtual machines (VMs) continue running without interruption on their original hosts. VergeOS employs advanced network protocols that transparently retrieve mirrored data from healthy cluster nodes, ensuring uninterrupted operations without performance degradation.

Advanced Data Resilience: Continuity

Failover Architecture

VergeOS’s HA clustering ensures that complete server node failures do not lead to service interruptions. In the event of a full node outage, affected virtual machines automatically migrate to healthy cluster nodes. This migration leverages already synchronized data replicas, ensuring immediate data availability and continuous service operation.

Advanced Data Resilience AND Rapid Recovery

Rigorous production environment testing demonstrates VergeOS’s capability to recover from a full server node failure within approximately 90 seconds, including a complete VM restart. Rapid recovery is achievable due to pre-existing data mirrors and streamlined failover mechanisms, outperforming traditional SAN and AFA systems, which typically experience longer downtime periods.

Intelligent Resource Orchestration

HA clustering in VergeOS features intelligent orchestration that selects the optimal target host based on current resource availability. This automated and dynamic resource allocation prevents contention, maintains high performance levels, and guarantees consistent service delivery during and after failover events.

Advanced Data Resilience: N+X Protection

Superior Multi-Fault Protection

ioGuardian technology sets VergeOS apart by maintaining continuous data access even when experiencing simultaneous failures across multiple drives and nodes. This advanced fault-tolerant mechanism surpasses the redundancy provided by traditional AFAs and competitive hyperconverged infrastructure (HCI) platforms, ensuring superior reliability in catastrophic failure scenarios.

Continuous Operation in Extreme Scenarios Delivers Advanced Data Resilience

ioGuardian ensures continuous VM operation even during severe hardware failures. It creates an independent, third copy of data stored on a separate VergeOS server(s), external to the primary production environment. When the production environment experiences multiple simultaneous node or drive failures, the ioGuardian server provides data fragments to instantly reconstruct any required data in real-time. This capability enables uninterrupted VM access, eliminating downtime or noticeable degradation during extreme failure conditions.

Technical Implementation

The ioGuardian architecture includes an external VergeOS instance that stores an independent third-party data replica. Advanced algorithms within the primary VergeOS environment dynamically leverage this external copy. As long as at least one node remains active in the production cluster, ioGuardian reconstructs and delivers necessary data fragments instantly and transparently. This design ensures continuous VM availability and operational integrity, exceeding the fault tolerance capabilities of traditional AFAs or HCI solutions.

Advanced Data Resilience: Recovery

Storage-Layer Snapshots

VergeOS’s ioClone technology provides instant snapshot capabilities directly at the storage layer without impacting the performance of running applications. Unlike traditional snapshot approaches that rely on incremental data chains or external backup systems, ioClone provides immediate, independent, and reliable recovery points.

Space-Efficient Retention

Global inline deduplication enables ioClone to store snapshots efficiently, using minimal storage resources. This efficiency allows organizations to maintain unlimited snapshots over extended periods, addressing the retention challenges and storage constraints commonly associated with traditional snapshot technologies.

Granular and Rapid Recovery

ioClone facilitates recovery at multiple granular levels—individual files, full virtual machines, or entire Virtual Data Centers (VDCs). Recovery operations complete in seconds, dramatically enhancing operational agility and ensuring compliance with rigorous data protection and recovery requirements.

Advanced Data Resilience: Networking

Eliminating Data Locality Limitations

VergeOS uses an optimized internode networking protocol designed to accelerate data transfer between cluster nodes. Unlike traditional architectures dependent on data locality, VergeOS retrieves data across nodes rapidly and efficiently. VergeOS’s deduplication engine, as it is available to the entire infrastructure, reduces network traffic by 60-80%, thereby lowering bandwidth demands and maintaining optimal performance even during fault conditions. The combination of the network protocol and data efficiency is critical in high-performance and data-intensive environments.

Accelerating Synchronous Replication and ioGuardian

The optimized networking protocol powers VergeOS’s synchronous replication and ioGuardian technologies. Synchronous replication instantly mirrors data, thanks to fast communication between nodes. Similarly, ioGuardian leverages rapid cross-node data retrieval to reconstruct data fragments instantly, providing continuous access during severe failure scenarios.

Technical Advantages

The efficiency of VergeOS internode communication results in sub-millisecond latency during cross-node data access. Extensive testing demonstrates consistent performance that exceeds that of traditional SAN or HCI solutions. This capability enhances system responsiveness, reliability, and advanced data resilience, allowing IT teams to confidently eliminate data locality constraints from infrastructure design.

Conclusion

VergeOS’s integrated, multi-layered, advanced data resilience approach delivers superior data protection, operational resilience, and infrastructure simplification. By combining synchronous replication, High Availability clustering, ioGuardian fault tolerance, and ioClone snapshot capabilities, organizations can confidently transition from traditional AFA solutions, avoiding the AFA tax, to VergeOS. For a deeper dive into these topics, register for our “Data Availability Analysis” white paper.

Filed Under: Storage Tagged With: Alternative, Disaster Recovery, IT infrastructure, Storage, VMware

July 8, 2025 by George Crump

For Immediate Release

Ann Arbor, MI – July 8th, 2025 – St. Clair County Regional Educational Service Agency (RESA), which provides centralized IT services for five school districts, a local community college, and seven municipalities in Michigan, has successfully modernized its infrastructure by replacing VMware and Veeam with VergeIO’s software-defined infrastructure platform, VergeOS.

Faced with mounting costs, hardware limitations, and industry disruptions, RESA initiated a complete reevaluation of its IT environment. “We were hit with a one-two-three punch,” said James Marsack, Senior Network Engineer at RESA. “First, NetApp announced the end-of-life for our SolidFire array. Then Broadcom acquired VMware and froze all updates while raising prices. Finally, our Cisco UCS environment brought supply chain delays and massive hardware maintenance costs. We needed more than a patch—we needed an infrastructure rethink.”

RESA found its answer in VergeOS, a single software platform that combines virtualization, storage, and networking with built-in backup and disaster recovery. Introduced to VergeIO through Cambridge Computer, Marsack said, “VergeOS didn’t just preserve what we relied on—it expanded it. It allowed us to simplify management, reduce licensing costs, and improve performance. And it just works.”

Key Results:

  • High-Efficiency Storage: VergeOS’ VSAN with global inline deduplication achieved a 16:1 efficiency ratio, compared to 3.7:1 with SolidFire.
  • Backup and DR Simplified: Replaced a half-rack QNAP array and Veeam with VergeOS’ integrated snapshot and replication system.
  • Hourly Snapshots: Eliminated daily backup windows and increased resiliency with hourly, space-efficient snapshots and transparent recovery via ioGuardian.
  • Secure Self-Service: VergeOS’ secure, multi-tenant architecture empowered districts and municipalities with self-service capabilities, dramatically lowering operational overhead.

“Veeam jobs failed regularly. With VergeOS, we get hourly snapshots, instant rollback, and reliable replication—no third-party dependencies,” said Marsack.

RESA also improved security and control. “VergeOS’ tenanting system is elegant—brilliant, even. With SSO and two-factor authentication, it’s vastly more secure than VMware,” Marsack added. “Now, our customers can manage their own VMs, which reduces our management burden and increases their satisfaction.”

Marsack credited Cambridge Computer for facilitating the transformation. “We wouldn’t be having this conversation if it wasn’t for Cambridge. They introduced us to VergeIO, and it changed everything.”

Click here to read the in-depth Case Study about St. Clair RESA’s journey to VergeOS.

VergeIO will be hosting a webinar on July 17th at 1:00 PM ET, featuring RESA.  Click here to register.

About VergeIO

VergeIO is the leading VMware alternative, providing a unified data center operating system that converges virtualization, storage, networking, and backup into a single piece of software. VergeOS simplifies IT operations, reduces costs, and enables rapid infrastructure deployment on new or repurposed hardware. For more information, visit www.verge.io.

About St. Clair County RESA

St. Clair County Regional Educational Service Agency (RESA) is one of Michigan’s 56 intermediate school districts. It provides centralized IT, administrative, and instructional services to five local K-12 school districts, a community college, and multiple municipal entities across the region. RESA’s mission is to deliver cost-effective, high-quality solutions that empower its educational and civic partners to serve their communities more effectively.

Media Contact:
Judy Smith
JPR for VergeIO
[email protected]
(818) 522-9673

Filed Under: Press Release Tagged With: Alternative, dataprotection, IT infrastructure, VMware

June 27, 2025 by George Crump

the infrastructure problem

VMware’s pricing changes, cloud cost overruns, or the AI skills shortage are symptoms of the infrastructure problem: legacy environments that demand new layers of complexity with every new initiative. Each shift in strategy—whether it’s migrating to the cloud, deploying AI workloads, or navigating vendor transitions—exposes just how fragile and fragmented traditional architectures have become. IT teams are forced to bolt on new platforms, hire niche expertise, or overprovision resources just to keep up. The result isn’t innovation—it’s operational drag. It’s time to rethink infrastructure from the ground up.

Watch our on-demand industry briefing with ESG to learn the impact of these challenges and how to solve them

According to recent (May 2025) ESG research titled “Private AI, Virtualization, and Cloud: Transforming the Future of Infrastructure Modernization,” a survey of 380 mid-sized to large data centers, organizations everywhere are scrambling to address these top challenges:

  1. VMware’s acquisition by Broadcom has created uncertainty for the 80% of enterprises relying on their virtualization platform.
  2. Simultaneously, 75% of organizations are rethinking their cloud strategies as costs spiral beyond projections.
  3. And 53% of organizations plan to deploy private, on-premises AI infrastructure within the next two years, but 70% struggle to find qualified staff to manage increasingly complex infrastructure environments.

IT leaders are approaching these as separate crises requiring individual solutions. But what if there’s a single root cause driving all these problems?

The Symptoms of the Infrastructure Problem

the infrastructure problem

The evidence of the infrastructure problem is everywhere:

  • VMware’s disruption has left organizations hunting for hypervisor alternatives, only to discover that most options require new skill sets and architectural approaches.
  • Cloud repatriation is accelerating as the economics of long-term workloads in public cloud environments prove unsustainable—what promised operational flexibility has become a financial burden.
  • AI adoption is stalling because implementing on-premises AI is a must-have to mine proprietary data, but vendors are suggesting it requires building separate infrastructure stacks with specialized hardware, networking, and storage.
  • Talent acquisition has become nearly impossible as the complexity of managing modern infrastructure outpaces the available skill pool.

These issues dominate IT planning discussions, budget meetings, and strategic reviews. However, focusing on symptoms instead of causes leads to fragmented solutions that exacerbate the underlying problem.

Software is the Source of the Infrastructure Problem

The source of the infrastructure problem isn’t any single vendor, technology, or market force. It’s the acceptance of fundamentally flawed infrastructure software that forces fragmentation by design.

For over two decades, the industry has normalized building data centers by assembling disconnected components—hypervisors that require separate storage systems, networking hardware that needs additional security appliances, backup solutions that demand their own management consoles, and now AI platforms that require new and again isolated stacks.

This fragmented approach creates four compounding problems:

Hardware Vendor Lock-In: Traditional infrastructure software ties organizations to proprietary hardware ecosystems. Storage controllers costing 10X what they should, certified network switches, rigid hardware compatibility lists—all designed to extract maximum revenue rather than deliver maximum value.

Operational Silos: Every new initiative spawns its own infrastructure requirements. Virtualization teams, storage specialists, network engineers, backup administrators, and now AI infrastructure experts—each managing separate tools, consoles, and technologies that barely communicate with each other.

The Add-On Trap: Poor infrastructure software creates gaps that must be filled with additional vendor solutions. What starts as “adding backup capabilities” becomes an ecosystem of interconnected products, each requiring its own licensing, hardware, support contracts, and specialized expertise.

the infrastructure problem

Complexity Explosion: The staffing crisis isn’t just about finding qualified people—it’s about the exponential complexity created when organizations need specialists for every infrastructure domain, plus the integration expertise to make them work together.

How to Solve the Infrastructure Problem

Solving the infrastructure problem becomes possible when infrastructure software is designed correctly from the ground up. VergeOS demonstrates this approach by integrating virtualization, storage, networking, and AI capabilities into a single codebase, creating a unified platform.

Instead of assembling separate components, organizations get unified functionality that eliminates vendor lock-in, operational silos, add-on complexity, and excessive staffing requirements while leveraging existing hardware. A single platform addresses what organizations currently treat as separate problems: VMware alternatives, cloud cost optimization, AI infrastructure deployment, and skills shortage mitigation.

This isn’t theoretical—it’s happening today. Read our case studies to learn how organizations using VergeOS report reducing infrastructure costs, in some cases, by over 90%, eliminating multiple vendor relationships, and enabling single administrators to manage entire infrastructure stacks that previously required specialized teams.

The Path Forward

The infrastructure challenges consuming your planning cycles aren’t inevitable. They’re the predictable result of accepting software that forces fragmentation rather than enabling consolidation.

VMware disruption, cloud cost overruns, AI deployment complexity, and skills shortages are symptoms of a deeper architectural problem. Addressing symptoms individually—such as finding new hypervisors, optimizing cloud spend, building AI infrastructure, and hiring more specialists—treats the effects while leaving the cause untouched.

The solution requires recognizing that modern infrastructure demands modern architecture. Software that natively integrates all infrastructure functions. Platforms that work with commodity hardware rather than forcing proprietary purchases. Systems that simplify rather than complicate operations.

Organizations that recognize this shift now will gain significant advantages over those that focus on treating symptoms instead of addressing the underlying problem.

To learn more, download our white paper, “Four Forces Accelerating Infrastructure Modernization.”

Filed Under: Virtualization Tagged With: AI, Alternative, Cloud, IT infrastructure, VMware

June 16, 2025 by George Crump

According to the ESG study, “Private AI, Virtualization, and Cloud: Transforming the Future of Infrastructure Modernization“, 72% of organizations experienced a cost increase in their infrastructure software, and 41% of those organizations are looking for a secure VMware Alternative. While reducing those licensing fees was the top priority, security ranked higher than concerns about migration complexity or the learning curve of adopting a new hypervisor platform.

With cyber threats intensifying, especially those targeting IT infrastructure, organizations are actively seeking infrastructure that delivers stronger defenses, simpler management, and enhanced operational control.

How VergeOS Responds

The VergeIO development team built VergeOS from the ground up to be secure by design. It reduces attack surfaces by collapsing multiple infrastructure layers—virtualization, storage, and networking—into a single software platform with centralized control. From licensing to workload isolation, VergeOS delivers the capabilities organizations expect from a secure VMware alternative.


To learn more about building a secure, resilient infrastructure and how to manage ransomware threats effectively, join us for our upcoming webinar, The Four Forces Accelerating Infrastructure Modernization, on Thursday, June 26, 2025, at 1:00 PM ET. Join ESG and VergeIO for an industry briefing on the state of IT infrastructure.

What Secure Virtualization Infrastructure Requires

To qualify as a secure alternative to VMware, the infrastructure must go beyond access controls and patch schedules; it must be architecturally designed to be secure.

Key Requirements for Secure Virtualization:

  • Immutable Core: The infrastructure software must cryptographically verify its operating system (OS) and maintain it as read-only.
  • RAM-Resident Execution: Runs from memory to prevent tampering.
  • Integrated Recovery Paths: Support fast rollback to clean states in the event of compromise.
  • Seamless Patch Updates: Organizations need regular updates to stay ahead of attackers; administrators must patch systems quickly, safely, and without disruption.

How VergeOS Implements Secure Virtualization

VergeOS boots into RAM using a read-only, cryptographically verified core image. This prevents unauthorized modifications and dramatically reduces the window for persistent threats. In the event of an attack, administrators can reload a known-good state in minutes—no reinstallation, no rehydration, and no downtime.

A Secure VMware Alternative

VergeOS also supports non-disruptive rolling updates, allowing organizations to patch their infrastructure without taking workloads offline. This keeps security current without introducing operational risk. As a result, 90% of VergeIO customers upgrade to the latest VergeOS version within 30 days of its availability—a proof point of both the platform’s reliability and the confidence customers have in its update process.

These are baseline features of a secure VMware alternative.

Secure Virtualization Requires Workload Isolation

Preventing lateral movement within infrastructure is just as important as securing the perimeter. VergeOS uses Virtual Data Centers (VDCs) to enforce strict boundaries between workloads.

Benefits of VDC-Based Isolation:

  • Each VDC can include its own compute, storage, and networking settings
  • Administrators can separate mission-critical applications from general user workloads
  • A breach in one VDC does not expose the rest of the environment

How VergeOS Makes It Work

VergeOS enables IT teams to assign VDCs based on application, department, or compliance boundary. VergeOS isolates each VDC not only by policy but by resource scope and access control. This capability is foundational for delivering a secure VMware alternative that limits risk and supports compliance.

Secure Virtualization Requires Detection and Recovery

Even with the strongest defensive measures—such as firewalls, endpoint protection, and rigorous security training—ransomware attacks find their way into an organization’s infrastructure. This can occur through sophisticated social engineering attacks, zero-day exploits, compromised third-party vendors, or advanced persistent threats (APTs) designed to bypass traditional defenses.

When an attack inevitably slips through these safeguards, the organization needs an immediate and reliable recovery strategy to minimize operational disruption and data loss. Effective ransomware recovery is as essential as prevention, requiring tools that detect infiltration swiftly, isolate affected areas, and rapidly restore systems to a safe state.

ioFortify: Early Detection through Deduplication Monitoring

VergeOS includes ioFortify, which continuously monitors deduplication efficiency. A sudden drop in deduplication is a warning sign of ransomware encryption. ioFortify alerts administrators early and recommends taking a snapshot of the environment before damage spreads.

VergeFS Snapshots: Fast, Clean Rollbacks

VergeOS’ ioClone technology enables read-only snapshots. Because of its integration into VergeOS, there is no limit on the number or the age of snapshots. VergeOS snapshots allow rapid rollback to clean, pre-attack states with minimal or no data loss and near-zero recovery time.

Together, ioClone, ioFortify, and Virtual Data Centers deliver what organizations expect from a secure VMware alternative: a ransomware-resilient architecture that combines early warning, data protection, and fast rollback.

A Secure VMware Alternative

Final Thoughts: Choose a VMware Alternative That Puts Security First

Weak security and vulnerability to ransomware represent significant infrastructure challenges. Organizations must adopt a comprehensive approach to address these issues. A secure VMware alternative can help achieve this goal. VergeOS provides a forward-thinking infrastructure platform that not only replaces VMware but also enhances the organization’s security posture.

If you’re evaluating VMware alternatives, ask:

  • Was this platform built to survive an attack?
  • Can it recover fast without introducing new risks?
  • Does it give me more control with fewer add-ons?

VergeOS is a secure VMware alternative that protects what comes next. Schedule a technical whiteboard session and deep dive into our architecture.


Filed Under: Protection Tagged With: Alternative, Security, VMware

May 27, 2025 by George Crump

The hidden costs of HCI often prevent IT professionals, who are looking to exit VMware, from seriously considering the architecture as a viable alternative. Hyperconverged Infrastructure (HCI) vendors capitalize on this scenario, positioning their solutions as streamlined platforms that seamlessly unify virtualization, compute, storage, and networking. However, this initial promise of simplified infrastructure management frequently masks significant hidden costs and complexities.

The hidden costs of HCI

Initially intended to unify infrastructure components, traditional HCI has failed to deliver true integration. Compute, storage, and networking resources remain operationally separate, requiring distinct layers in the form of virtual machines (VMs) communicating with the hypervisor. Commonly deployed solutions utilize separate VMs for storage management (e.g., Nutanix’s CVM or VMware’s vSAN), distinct networking stacks (Nutanix Flow, VMware NSX), and individual management VMs (Nutanix Prism, VMware vCenter). True operational simplification remains elusive; what began as convergence is merely the virtualization of legacy three-tier architectures.

How VergeOS Solves the Convergence Problem

VergeOS achieves true convergence through its ultraconverged design. By integrating storage, networking, virtualization, and data services directly into a unified operating environment, VergeOS eliminates silos and redundant communication layers. This cohesive design simplifies operations, reducing complexity, administrative overhead, and resource inefficiency.

Dive deeper with our on-demand webinar: “Comparing HCI as VMware Alternatives.”


The Efficiency Problem

The hidden costs of HCI include its inability to deliver meaningful infrastructure efficiency. Despite sharing hardware, HCI components remain distinct entities, each consuming substantial resources. Dedicated storage VMs, management VMs, separate networking stacks, and additional abstraction layers cumulatively drain compute cycles and memory. Application VMs running within these infrastructures consequently suffer degraded performance and higher latency, forcing organizations to compensate with additional hardware investment rather than benefiting from the initially promised efficiency gains.

For instance, a typical I/O operation in an HCI environment begins at the hypervisor level, proceeds through a storage controller (virtualized as a separate VM), traverses network infrastructure, and finally reaches physical storage media. Each extra step consumes CPU resources, adds latency, and reduces performance efficiency. As workloads scale, the cumulative impact of these inefficiencies affects application responsiveness and resource utilization.

Some HCI vendors utilize data locality to mitigate some of these issues; however, this technology further complicates operations and negatively impacts performance during node or drive failure.

The hidden costs of HCI

How VergeOS Solves the Efficiency Problem

VergeOS integrates all services, including storage and networking, directly into its operating system, eliminating performance overhead associated with separate management virtual machines or additional software layers. Its lightweight architecture ensures maximum resource efficiency, optimizing performance and dramatically reducing hardware requirements and infrastructure costs.


The High Cost of HCI Inefficiency

The hidden costs of HCI inefficiencies necessitate significant investment in higher-performance hardware to compensate for architectural shortcomings. IT must procure more powerful servers, increased core counts, expanded memory, and faster networking. Furthermore, licensing models that charge per CPU core or capacity exacerbate costs, forcing organizations into substantial capital expenditures. These license models compel customers to purchase less optimal hardware to contain software licensing costs.

How VergeOS Reduces the Cost of Inefficiency

With a streamlined architecture, VergeOS maximizes hardware resource utilization. Its efficient code base and integrated design enable organizations to achieve optimal performance using commodity or existing hardware, reducing initial capital expenditures and ongoing operational expenses. VergeIO licenses VergeOS per-server without penalties for using high-core-count or high-capacity servers.


The High Cost of HCI Data Availability

HCI solutions employ synchronous mirroring—continuous real-time data duplication across nodes—to protect against hardware failures. Vendors commonly refer to redundancy levels as Replication Factor (RF) or Fault Tolerance Level (“failures to tolerate” or FTT). Nutanix refers to protection from one node failure as Replication Factor 2 (RF2), meaning two copies of data are maintained. VMware terms this configuration Failures to Tolerate of 1 (FTT=1).

To protect from two simultaneous node failures or multiple drive failures across nodes, Nutanix uses Replication Factor 3 (RF3)—three data copies—while VMware uses FTT=2. This triple redundancy greatly increases storage capacity and resource requirements. RF3 requires at least five nodes, becoming prohibitively expensive for smaller deployments. In larger environments, limiting resiliency to two node failures is insufficient, as risk increases with node count.

These requirements force prioritizing specific workloads for enhanced protection (RF3), relegating others to standard availability (RF2). Limited redundancy beyond RF3 leads organizations to increase the cluster count per site, resulting in cluster sprawl, which in turn causes additional administrative complexity, higher costs, and uneven availability guarantees.

To maintain performance during node failures, Nutanix and VMware require reserving a portion of resources on each server equal to the capacity of one full node. In a four-server environment, 25% of each server’s resources are reserved for failover, which substantially reduces the available capacity during regular production operations.

How VergeOS Delivers Cost-Effective Data Availability

VergeOS leverages ioGuardian, a deduplicated third-copy data protection method. This efficiently safeguards against multiple simultaneous hardware failures without excessive storage overhead or node count requirements of traditional RF3 implementations. ioGuardian provides robust availability at an economical cost, without requiring workload prioritization, delivering superior resilience at a lower price and complexity.

No reservation of server resources is required. If a node fails, VergeIO’s ioOptimize technology intelligently and automatically reallocates affected VMs to other nodes based on each VM’s resource demands and available server capacities.


The High Cost of HCI Data Protection

The Practice of Snapshotting

Snapshotting commonly provides additional recovery points beyond the capabilities of backup software. However, snapshot-intensive environments impose severe performance penalties, resulting in increased storage I/O and network resource demands. Frequent snapshots or long-term snapshot retention require complex metadata management, demanding more powerful servers, additional memory, and faster storage media. This results in escalated hardware and licensing costs, especially in per-core or per-capacity licensing models common to HCI.

Snapshot chains or numerous simultaneous snapshots greatly increase complexity, hindering disaster recovery processes. Restoring across heterogeneous hardware or hypervisor environments becomes challenging, restricting operational flexibility.

How VergeOS Simplifies Data Protection

VergeOS utilizes ioClone technology, integrated with its global inline deduplication, to create space-efficient, independent snapshots with minimal metadata overhead. ioClone’s architecture supports near-continuous snapshot execution and indefinite retention without performance degradation, enabling rapid and efficient data protection without the need for costly hardware upgrades or complex snapshot management. The combination of ioGuardian and ioClone also reduces the organization’s dependency on backup, lowering the costs of backup software licensing and backup hardware infrastructure.

The High Cost of HCI Inflexibility

The hidden costs of HCI architectures imposing strict hardware compatibility and homogeneity requirements are significant. Expanding storage or compute resources mandates identical hardware, limiting flexibility and increasing long-term infrastructure costs. Adding nodes of different brands, generations, or capabilities creates additional clusters, which fragment management and reduce efficiency.

How VergeOS Enhances Infrastructure Flexibility

VergeOS supports heterogeneous hardware environments, enabling organizations to integrate diverse hardware configurations into unified, scalable clusters seamlessly. This flexibility reduces costs, simplifies expansion, and maximizes investment longevity, enabling adaptive infrastructure growth without imposed constraints on homogeneity.

overcome the hidden costs of HCI inflexibility


An Example of The Hidden Costs of HCI vs. VergeOS

Consider a three-node infrastructure using traditional Hyperconverged Infrastructure (HCI), where the organization’s goal is to maintain continuous data availability even after two simultaneous node failures. Traditional HCI solutions, such as Nutanix or VMware vSAN, require at least five nodes configured with Replication Factor 3 (RF3), or a Fault Tolerance Level of 2 (FTT=2), ensuring continuous availability despite two node failures. In addition, these solutions require maintaining sufficient free storage capacity at all times to accommodate a complete rebuild in the event of node failures, thereby reserving capacity equivalent to an entire node, which further reduces usable storage space.

Because the customer wants to leverage their existing hardware—a heterogeneous mix of Dell and HPE servers—traditional HCI platforms present immediate compatibility and cost challenges. Traditional HCI requires uniform hardware for seamless operation, which adds complexity and cost.

Cost Analysis for Traditional HCI

Achieving protection from two simultaneous node failures requires:

  • Minimum Node Count: 5 nodes (uniform hardware required).
  • Replication Method: RF3 or FTT=2 (three synchronous copies of all data).
  • Usable Capacity: Reduced to approximately 33% due to triple mirroring overhead.
  • Reserved Free Capacity: Additional storage space equal to one node’s full storage capacity, always kept available to allow immediate rebuilds after failures.

In this scenario, the customer faces:

  • The necessity of purchasing additional uniform hardware due to vendor compatibility guidelines.
  • Higher software licensing costs, typically calculated per CPU core.
  • Significant reserved resources on each node (compute and storage) are allocated exclusively for node failure scenarios.

This dramatically increases capital and operational expenses, requiring significant investment in new hardware and licenses, thereby negating the anticipated HCI savings.

Cost Analysis with VergeOS

In the same scenario, VergeOS offers substantial advantages:

  • Minimum Node Count: 3 nodes (uses existing Dell and HPE hardware).
  • Replication Method: Integrated distributed mirroring combined with VergeOS’s independent, deduplicated third data copy via ioGuardian, which can be installed on any available standby server.
  • Usable Capacity: Approximately 50% (due to two-way mirroring), augmented by ioGuardian’s deduplication efficiency.
  • Reserved Free Capacity: Minimal additional storage capacity needed due to ioGuardian’s efficient data protection strategy, reducing rebuild space requirements compared to traditional RF3 architectures.

With VergeOS, you benefit from:

  • No need for uniform hardware, allowing immediate use of existing Dell and HPE servers.
  • Reduced licensing and hardware costs, as no additional nodes or extensive resource reservations are required.
  • Enhanced data availability beyond traditional two-node failure protection without extensive reserved storage, reducing overhead and complexity.


Summary of Cost Benefits

Traditional HCI requires two additional nodes (totaling five) and mandates uniform hardware, increasing both capital and operational expenses, compounded by large reserved capacity requirements for rebuilding data. VergeOS provides superior resilience, operational continuity, and cost efficiency by leveraging existing heterogeneous hardware and substantially reducing the need for reserved rebuild capacity.

Conclusion

While hyperconverged infrastructure initially promises simplicity, efficiency, and cost savings, underlying architectural limitations quickly surface as substantial hidden costs. Challenges such as insufficient convergence, operational inefficiencies, costly availability and protection schemes, and restrictive infrastructure flexibility erode promised benefits. Organizations should carefully assess these hidden costs when evaluating HCI solutions, prioritizing converged, integrated infrastructures like VergeOS that fundamentally address these critical challenges, enabling efficient, cost-effective, and future-ready IT environments.

Register for our HCI Data Availability Analysis

Filed Under: HCI Tagged With: Alternative, HCI, Hyperconverged, UCI, VMware

May 19, 2025 by George Crump

Triple mirroring, or Replication Factor 3 (RF3), presents hidden challenges when evaluating VMware alternatives and hyperconverged architectures. Although RF3 enhances data resiliency beyond single drive or node failures, many organizations face unexpected costs, operational complexity, and scalability constraints, which are pronounced in smaller or larger deployments, where resource efficiency and manageability become critical issues. These unexpected triple mirroring challenges force most IT professionals to avoid the technology completely, but with the right design, a triple mirror can provide better availability at a lower cost.

The Basics of Triple Mirroring

Triple mirroring replicates data across three separate nodes or storage devices. This approach ensures data availability even if two nodes, or drives with those nodes, fail simultaneously, providing a higher degree of redundancy and resilience compared to dual replication (RF2). On the surface, this redundancy sounds ideal for critical workloads, but deeper examination reveals several substantial drawbacks.

Costly and Impractical for Small Environments

One major limitation of triple mirroring is its inefficiency in smaller environments. RF3 configurations require a minimum of five nodes to maintain adequate redundancy and quorum, even though the storage and computing demands may not necessitate this level of investment. For small data centers or departmental deployments, this requirement results in a prohibitively high entry cost, as the infrastructure must be oversized to achieve adequate redundancy.

Triple Mirroring requires five nodes

In these scenarios, the high infrastructure cost, coupled with a reduced usable storage capacity—approximately a 66% reduction compared to single-copy storage—can be problematic, as it inflates the total cost of ownership without providing proportional operational value.

Scalability Challenges for Large Deployments

At the opposite end of the spectrum, large-scale deployments find triple mirroring delivers diminishing returns. In environments spanning dozens or more nodes, the risk of multiple simultaneous failures increases. For instance, protecting against dual node failures in a 32-node cluster may prove insufficient, as larger clusters inherently present greater statistical risks. Consequently, the likelihood of multiple concurrent failures can quickly exceed what RF3 is designed to handle. Moreover, even if an organization was willing to implement a higher redundancy level, such as “quad-mirroring,” available solutions do not offer this capability.

As environments scale, the inefficiency of triple mirroring grows exponentially. It requires a substantial upfront investment in storage and computing capacity to maintain adequate redundancy across all nodes. These demands escalate infrastructure complexity, increasing management overhead and resource consumption.

The Hidden Costs of Triple Mirroring

Triple mirroring introduces hidden long-term costs that extend beyond maintaining a third copy of data. First, the third data copy requires deployment on identical, production-class servers and storage media, as triple mirroring technologies cannot dedicate specific nodes solely for data storage without also utilizing them for compute tasks.

Secondly, the significant expense associated with triple mirroring forces IT teams into complex trade-offs, as they manage multiple storage volumes with varying resiliency levels, with some set at RF2 and others at RF3. This dual-resiliency model increases complexity and compels IT to prioritize specific applications, granting them higher availability while relegating less critical applications to lower protection levels. Additionally, many solutions employing RF3 lack the flexibility to revert seamlessly from RF3 to RF2 or upgrade from RF2 to RF3 without requiring a complete recovery of VM data from backup, which adds further operational burdens, limits flexibility, and increases the risk of downtime.

A More Efficient Alternative with VergeIO ioGuardian

A far more efficient and powerful solution is VergeIO’s ioGuardian technology, which delivers the resiliency advantages of triple mirroring without the associated overhead and complexity. ioGuardian maintains an independent, deduplicated third copy of data on a single, cost-effective storage server, reducing storage overhead and increasing resiliency beyond two node failures.

Triple mirroring on a secondary server that extends beyond the capabilities of a triple mirror.

For smaller environments, ioGuardian offers an optimal approach by requiring only one additional, affordable storage server, eliminating the need for multiple fully provisioned nodes. In larger environments, ioGuardian provides extensive protection against numerous simultaneous node failures by delivering a robust, real-time, and accessible backup repository that is independent of the primary operational infrastructure. With ioGuardian, organizations no longer need to selectively allocate protection levels, ensuring comprehensive availability for all applications.

Simplified Management and Lower Costs with ioGuardian

VergeIO’s ioGuardian simplifies infrastructure management, reduces complexity, and lowers costs. Its dedicated storage server approach minimizes resource consumption, as the server focuses solely on secure data storage and recovery, rather than hosting active virtual workloads. Furthermore, ioGuardian’s global inline deduplication dramatically reduces storage capacity requirements, directly decreasing both capital and operational expenses.

How ioGuardian Works

By decoupling redundancy from operational nodes and centralizing it into ioGuardian’s dedicated backup repository, organizations achieve superior data resiliency. In scenarios involving multiple simultaneous node or drive failures—situations that even exceed the protections provided by RF3—ioGuardian immediately ensures continuous data availability through real-time redirection of requests. When production nodes detect missing or unavailable data blocks due to hardware failures, VergeOS transparently redirects these requests to redundant data blocks stored within the independent ioGuardian server, enabling uninterrupted application performance and seamless user access.

Eliminate Triple Mirroring. Backup and Data Availability in one simple solution.

Critically, ioGuardian maintains operational efficiency by deferring data migration back into primary production nodes until failed drives or nodes are physically replaced or explicitly marked for replacement. When the drives are replaced, ioGuardian automatically repopulates data onto the repaired or newly replaced hardware, minimizing unnecessary data movement and preserving the performance of the production infrastructure.

Additionally, ioGuardian serves as a comprehensive traditional backup solution. It enables organizations to restore virtual machines, individual files, or specific data versions directly from their repository when needed, providing reliable access to historical data snapshots. This capability simplifies recovery processes following data corruption events, accidental deletions, or ransomware attacks, thereby enhancing overall data integrity and reducing costs further.

Conclusion: Rethinking Triple Mirroring with VergeIO

While triple mirroring initially appears straightforward for ensuring data availability and redundancy, its hidden complexities, high costs, and scalability limitations often overshadow its intended benefits. Modern IT infrastructures demand more flexible, efficient, and scalable redundancy solutions. VergeIO’s ioGuardian offers organizations—from small departmental setups to large enterprise clusters—a simplified, robust, and cost-effective approach to data protection, surpassing traditional triple-mirroring strategies. Data redundancy is one aspect of a VMware Alternative’s capabilities that IT should consider. They should look for solutions that encompass all aspects of data availability as part of their selection process.

To explore these advantages further, join our upcoming live webinar, Comparing HCI Architecture.

Filed Under: Protection Tagged With: Alternative, HCI, VMware

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