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Wednesday, June 12, 2024

Optimizing Your Virtual World: Selecting the Right Fit - vSAN ESA or vSAN OSA for VCF 5.1.x

Optimizing Your Virtual World: Selecting the Right Fit - vSAN ESA vs. vSAN OSA for VCF 5.1.x

Are you considering deploying VCF 5.1.x and wondering which vSAN architecture aligns best with your environment and hardware? Look no further! This blog post for you.

 VMware vSAN 8 brings forth a revolutionary leap in storage technology with its Express Storage Architecture (ESA). This optional, alternative storage architecture is meticulously crafted to complement vSAN's original storage architecture (OSA), delivering unparalleled performance, scalability, resilience, and advanced data services. Join us in this blog as we dissect the disparities between these two architectures, shedding light on how ESA leverages contemporary hardware to meet the evolving demands of present and future workloads.

Key Differences Between ESA and OSA

Architectural Design

  • Original Storage Architecture (OSA):
    • Two-Tier Design: Combines cache and capacity devices.
    • Device Compatibility: Supports a wide range of storage devices including SATA, SAS, and NVMe.
    • Flexibility: Suitable for various hardware configurations, allowing custom-built setups with certified devices.
  • Express Storage Architecture (ESA):
    • Single-Tier Design: Optimized for high-performance NVMe-based TLC flash devices.
    • Device Compatibility: Requires vSAN ESA certified NVMe devices, ensuring consistent performance.
    • Performance Optimization: Tailored for NVMe devices, providing superior performance and lower latency.
    • Deployment: Available only on vSAN ReadyNodes, ensuring a streamlined and optimized setup.

Performance Enhancements

  • Log Structured File System: ESA uses a new file system that enables the use of RAID-6 at the performance level of RAID-1, a significant improvement over the OSA's need to balance between RAID configurations based on capacity and performance needs.
  • Compression and Data Services: ESA offers per-virtual-machine compression that occurs before data traverses the network, enhancing throughput and reducing networking overhead. This architecture supports a high data reduction ratio, potentially achieving up to an 8:1 compression for every 4KB block written.
  • Snapshot Efficiency: ESA's native snapshot engine is vastly more efficient, providing up to 100 times faster snapshot consolidation times and enabling new use cases through enhanced backup APIs.

Capacity and Cost Efficiency

  • Removal of Cache Devices: ESA eliminates the need for dedicated cache devices, utilizing all available device capacity for the vSAN datastore. This change reduces write amplification and latency, while also simplifying the storage configuration.
  • Flexible RAID Configurations: ESA supports RAID-5 in smaller clusters with a minimum of 3 nodes, and offers more capacity-efficient stripe sizes for larger clusters. This flexibility, combined with the removal of cache devices, significantly lowers the cost per GB for vSAN clusters.

Security Improvements

  • Enhanced Encryption: In ESA, data encryption occurs at the host level, ensuring data is encrypted once at rest. This approach reduces CPU overhead and minimizes I/O amplification related to encryption processes. ESA also supports layering data encryption on top of vSAN datastore encryption for added security.

Networking Requirements

  • Higher Minimum Bandwidth: ESA mandates a minimum of 25Gbps networking, compared to OSA's 10Gbps. This requirement ensures that the high-performance capabilities of NVMe devices are fully utilized, offering superior performance and reliability.

Hardware Choices and Requirements


vSAN 8.0 ESA

vSAN 8.0 OSA

Storage Device Minimums



Hardware Choices

vSAN ESA certified NVMe devices

SATA, SAS, NVMe certified devices

Cache Device Requirements

No Cache Devices

1 Cache Device per Disk Group


ReadyNodes Only

ReadyNodes or custom builds with certified devices

Networking Minimums

25Gbps minimum

10Gbps minimum

The decision to require a 4-device minimum for ESA aims to ensure high performance and availability, leveraging the capabilities of NVMe devices for consistent performance and reduced latency. The move to 25Gbps networking further guarantees that the enhanced performance of these devices is fully realized.

VMware vSAN 8's Express Storage Architecture (ESA) marks a significant leap forward in storage technology, optimizing for high-performance NVMe-based TLC flash devices and providing unmatched performance, scalability, and efficiency. While the Original Storage Architecture (OSA) continues to support a broad range of hardware configurations, ESA represents the future of vSAN, designed to meet the demands of modern workloads with revolutionary advancements in storage performance and efficiency. Customers can confidently choose the architecture that best suits their needs, knowing that VMware supports both OSA and ESA, ensuring flexibility and longevity in their storage solutions.


Friday, May 24, 2024

Simplifying VMware by Broadcom Licensing with License Calculators

In this blog post, we will explore how to manage licenses for VMware by Broadcom Cloud Foundation, vSphere Foundation, and vSAN. Managing these licenses can be challenging due to the variety of configurations and editions available. However, VMware by Broadcom's License Calculators offer a straightforward way to estimate your licensing needs based on specific configurations. Here’s how to use them effectively.

VMware by Broadcom  Cloud Foundation Licensing


  • CPU Sockets
  • Edition (Standard, Advanced, Enterprise)
  • Deployment Size


  1. Identify the number of CPU sockets: Determine the total number of CPU sockets across all servers in your deployment.
  2. Choose the appropriate VCF edition: Select the edition of VMware by Broadcom  Cloud Foundation that meets your operational requirements.
  3. Input these details into the VCF License Calculator: Use the VMware by Broadcom  Cloud Foundation (VCF) License Calculator to input the number of CPU sockets and the selected edition to determine your licensing needs.

VMware by Broadcom vSphere Licensing


  • CPU Sockets
  • vRAM Entitlement (if applicable)


  1. Determine the number of CPU sockets in your servers: Count the total number of CPU sockets in your vSphere environment.
  2. Select the vSphere edition that matches your requirements: Choose the vSphere edition that aligns with your infrastructure needs.
  3. Use the vSphere License Calculator for license estimation: Enter the number of CPU sockets and the selected edition into the vSphere License Calculator to estimate the required licenses.



VMware by Broadcom vSAN Licensing


  • Storage Capacity
  • Edition (Standard, Advanced, Enterprise)


  1. Assess the total storage capacity managed by vSAN: Measure the total amount of storage your vSAN deployment will manage.
  2. Select the appropriate vSAN edition: Choose the edition of vSAN that fits your storage requirements.
  3. Input these details into the vSAN License Calculator: Enter the storage capacity and selected edition into the vSAN License Calculator to estimate the required licenses.

Using the License Calculator

  1. Download the Calculator: Obtain the script and CSV template from the  Broadcom Knowledge Base.
  1. Prepare the CSV File: Input necessary details such as cluster names, number of hosts, CPU sockets, and vSAN settings into the CSV template.
  2. Run the Script: Use PowerShell commands to process the CSV file and generate license estimates.

Benefits of Using VMware by Broadcom  License Calculators

  • Accurate Budgeting: Provides precise cost estimates, aiding in better budget planning and financial management.
  • Compliance: Ensures you have the correct number of licenses to avoid penalties associated with non-compliance.
  • Resource Optimization: Helps allocate resources efficiently, avoiding over-provisioning and under-utilization.

By utilizing these calculators, you can streamline your VMware by Broadcom  license management, ensuring a cost-effective and compliant deployment. For detailed instructions, visit the Broadcom Knowledge Base article.

Using VMware by Broadcom 's License Calculators simplifies the complex process of managing licenses for your virtual environments, providing clarity and accuracy in your licensing requirements.

Thursday, February 15, 2024

Understanding VMware Tanzu: Open Source, vSphere, and VMware Cloud Foundation


In the rapidly evolving landscape of cloud-native technologies, VMware Tanzu has emerged as a comprehensive suite of products and services designed to facilitate modern application development and management. Tanzu offers solutions tailored to various environments and use cases, including open source offerings, integration with VMware vSphere, and extensions for VMware Cloud Foundation (VCF). In this blog post, we'll explore the differences between Tanzu open source, Tanzu on vSphere, and Tanzu on VMware Cloud Foundation and we'll  also delve into the pros and cons of Tanzu open source, Tanzu on vSphere, and Tanzu on VMware Cloud Foundation, helping you navigate the terrain of Kubernetes and cloud-native technologies.


Tanzu Open Source: At the heart of VMware's commitment to the Kubernetes and cloud-native ecosystem lies Tanzu open source. This encompasses a range of projects and components contributed by VMware to the open-source community. Among these are Kubernetes distributions like Tanzu Kubernetes Grid Community Edition (TKG CE), which provides a consistent, upstream-compatible Kubernetes runtime across environments. Additionally, Tanzu open source includes tools such as Tanzu Mission Control, offering centralized management and policy enforcement for Kubernetes clusters, and Harbor, a trusted container registry solution. Tanzu open source projects are freely available, fostering collaboration and innovation within the broader Kubernetes community.

Tanzu on vSphere: For organizations leveraging VMware's vSphere virtualization platform, Tanzu on vSphere provides a seamless path to adopting Kubernetes and cloud-native technologies. This offering enables the deployment and management of Kubernetes clusters directly on vSphere infrastructure, leveraging familiar VMware tools and interfaces. Tanzu on vSphere streamlines the process of provisioning and scaling Kubernetes clusters, integrating with vSphere features such as NSX-T for networking and vSAN for storage. By extending the capabilities of vSphere to encompass Kubernetes workloads, Tanzu on vSphere empowers organizations to embrace modern application architectures while leveraging their existing investments in VMware technologies.

Tanzu on VMware Cloud Foundation (VCF): VMware Cloud Foundation (VCF) serves as the cornerstone of VMware's hybrid and multi-cloud strategy, providing an integrated platform for deploying and managing private and hybrid clouds. Tanzu on VCF extends this platform with additional capabilities for running Kubernetes and modern applications alongside traditional virtualized workloads. By integrating Tanzu with VCF, organizations gain access to automated provisioning, scaling, and lifecycle management of Kubernetes clusters within their VMware-based cloud environments. Tanzu on VCF leverages VMware's software-defined networking and storage solutions, ensuring seamless integration with existing infrastructure and operational practices.

Tanzu Open Source: Pros:

  1. Community Collaboration: Tanzu open source fosters collaboration within the Kubernetes community, enabling contributions and innovation from a diverse set of stakeholders.
  2. Flexibility: With access to open-source projects like Tanzu Kubernetes Grid Community Edition (TKG CE), organizations have the flexibility to customize and extend Kubernetes deployments according to their unique requirements.
  3. Cost-effectiveness: Open source solutions typically come with lower or no licensing costs, making Tanzu open source an attractive option for organizations with budget constraints.


  1. Self-Support: While Tanzu open source projects benefit from community support, organizations may need to invest additional resources in self-support or rely on third-party vendors for assistance.
  2. Complexity: Managing and integrating multiple open-source components can introduce complexity, requiring expertise in Kubernetes and related technologies.
  3. Lack of Enterprise Features: Some enterprise-grade features and support may be limited or absent in open-source offerings, potentially impacting production-level deployments.

Tanzu on vSphere: Pros:

  1. Familiarity: For organizations already invested in VMware vSphere, Tanzu on vSphere provides a seamless transition to Kubernetes and cloud-native technologies, leveraging familiar tools and interfaces.
  2. Integration: Tanzu on vSphere integrates tightly with vSphere features such as NSX-T for networking and vSAN for storage, simplifying deployment and management tasks.
  3. Operational Efficiency: By consolidating virtualized workloads and Kubernetes clusters on a single platform, Tanzu on vSphere enhances operational efficiency and resource utilization.


  1. Vendor Lock-in: Dependency on VMware technologies may limit flexibility and interoperability with non-VMware environments, potentially leading to vendor lock-in.
  2. Licensing Costs: While Tanzu on vSphere offers integration with existing vSphere licenses, additional licensing costs may apply for Tanzu-specific features and functionalities.
  3. Learning Curve: Adopting Tanzu on vSphere requires acquiring skills and knowledge specific to VMware's ecosystem, which may involve a learning curve for IT teams accustomed to other platforms.

Tanzu on VMware Cloud Foundation (VCF): Pros:

  1. Integrated Platform: Tanzu on VCF provides a fully integrated platform for deploying and managing Kubernetes alongside traditional virtualized workloads, streamlining operations and management.
  2. Automated Lifecycle Management: VCF automates the deployment, scaling, and lifecycle management of Kubernetes clusters, reducing administrative overhead and ensuring consistency.
  3. Scalability: With VCF's scalable architecture, organizations can easily scale Kubernetes clusters to meet changing demand, supporting dynamic application workloads.


  1. Complexity: Implementing and managing a VMware Cloud Foundation environment requires expertise in VMware's suite of products and technologies, potentially adding complexity to deployment and operations.
  2. Cost: The comprehensive features and capabilities offered by VCF come with a corresponding cost, which may be prohibitive for organizations with limited budgets or cost-conscious priorities.
  3. Dependency on VMware: Organizations adopting Tanzu on VCF commit to VMware as their primary cloud infrastructure provider, potentially limiting flexibility in multi-cloud or hybrid cloud strategies.

 Choosing the right VMware Tanzu deployment option requires careful consideration of organizational goals, technical requirements, and budgetary constraints. Whether opting for Tanzu open source for flexibility and community collaboration, Tanzu on vSphere for seamless integration with existing VMware environments, or Tanzu on VMware Cloud Foundation for an integrated cloud platform experience, each option presents unique advantages and challenges. By weighing the pros and cons outlined in this blog post, organizations can make informed decisions and embark on their journey towards Kubernetes and cloud-native excellence with confidence.

Streamlining IT Infrastructure with VMware Cloud Foundation

In today's rapidly evolving digital landscape, businesses are under constant pressure to optimize their IT infrastructure for agility, scalability, and efficiency.VMware Cloud Foundation (VCF) emerges as a comprehensive solution designed to streamline IT operations.VMware Cloud Foundation is an integrated platform that combines VMware's compute, storage, networking, and management solutions into a single, easy-to-deploy stack. It provides a unified SDDC platform for running traditional or modern applications in private, public, or hybrid cloud environments.




Understanding VMware Cloud Foundation

VMware Cloud Foundation represents a holistic approach to building and managing modern software-defined data centers (SDDCs). At its core, VCF combines several key components:

1.    vSphere: VMware's industry-leading virtualization platform provides the foundation for running multiple virtual machines (VMs) on a single physical server, optimizing resource utilization, and enabling workload mobility.

2.    vSAN: VMware's software-defined storage solution aggregates locally attached disks across multiple hosts to create a distributed shared storage infrastructure, delivering high performance and resilience.

3.    NSX: VMware NSX offers network virtualization and security capabilities, allowing organizations to create and manage virtual networks, enforce micro-segmentation policies, and enhance overall network agility and security.

4.    vRealize Suite: This includes vRealize Automation for automating the delivery and ongoing management of infrastructure, applications, and custom IT services, and vRealize Operations for monitoring and managing the health, capacity, and performance of the SDDC environment.

Benefits of VMware Cloud Foundation

Deploying VMware Cloud Foundation offers numerous benefits to organizations, including:

1.    Simplified Operations: VCF automates the deployment, configuration, and management of the entire SDDC stack, reducing complexity and freeing up IT resources for more strategic initiatives.

2.    Scalability and Flexibility: With VCF, organizations can easily scale their infrastructure up or down to meet changing business demands, ensuring optimal resource utilization and cost efficiency.

3.    Consistent Infrastructure: VCF provides a consistent infrastructure across private and public clouds, enabling seamless workload mobility and hybrid cloud deployments while maintaining operational consistency.

4.    Enhanced Security: Leveraging features like micro-segmentation and built-in security policies, VCF helps organizations improve their overall security posture and compliance, mitigating cybersecurity risks.

5.    Faster Time to Value: By abstracting hardware complexities and automating deployment and management tasks, VCF accelerates time to value for new applications and services, enabling faster innovation and time-to-market.

Use Cases for VMware Cloud Foundation

VMware Cloud Foundation caters to a wide range of use cases, including:

1.    Data Center Modernization: Organizations can modernize their data centers with VCF, leveraging its integrated capabilities to simplify operations, improve agility, and prepare for future growth.

2.    Hybrid Cloud Deployment: VCF facilitates seamless hybrid cloud deployments by providing a consistent infrastructure and operational model across private and public clouds, enabling workload portability and disaster recovery.

3.    DevOps and Automation: With vRealize Automation and other automation tools integrated into VCF, organizations can streamline DevOps processes, accelerate application delivery, and enhance collaboration between development and operations teams.

4.    Virtual Desktop Infrastructure (VDI): VCF can be used to deploy and manage virtual desktop infrastructure (VDI) environments, providing a scalable and efficient solution for delivering virtual desktops to end-users, regardless of their location or device.

Implementation Strategies

Implementing VMware Cloud Foundation involves several key steps, including:

1.    Assessment and Planning: Conduct a comprehensive assessment of existing infrastructure, workloads, and business requirements to determine the optimal deployment model and architecture for VCF.

2.    Deployment and Configuration: Deploy and configure VMware Cloud Foundation according to best practices, leveraging automated deployment tools and predefined configurations to streamline the process.

3.    Integration and Customization: Integrate VCF with existing tools, processes, and workflows, and customize the platform to meet specific business needs, such as compliance requirements or performance optimizations.

4.    Migration and Onboarding: Migrate existing workloads and applications to the VCF environment, leveraging migration tools and methodologies to minimize disruption and downtime.

5.    Training and Support: Provide training and support to IT staff and end-users to ensure they are proficient in using VCF and maximizing its capabilities to drive business value.

VMware Cloud Foundation emerges as a powerful solution for streamlining IT infrastructure and enabling organizations to build and manage modern, software-defined data centres. By integrating compute, storage, networking, and management into a unified platform, VCF simplifies operations, enhances agility, and accelerates time to value for new initiatives. Whether it's data centre modernization, hybrid cloud deployment, or DevOps automation, VCF provides the foundation for organizations to innovate and stay competitive in today's digital landscape.

Tuesday, September 5, 2023

Streamlining VM Provisioning on Multi-Cloud & Cost Optimization: Insights from Delhi VMUG Talk on VMware Aria Suite

 Greetings, tech enthusiasts! Imagine the frustration of waiting eight long days for a virtual machine to be provisioned. In today's fast-paced world, that's simply unacceptable. However, in a recent event at Delhi VMUG, I shared our remarkable journey from these excruciating delays to the astonishing reality of reducing VM build time to a mere eight hours. Buckle up as we explore how we streamlined VM provisioning in a multi-cloud environment, optimized costs using VMware Aria Suite (SaaS), and revolutionized the way we operate.

The Delhi VMUG Event:

At the Delhi VMUG event, I had the privilege of sharing our experiences and insights into these challenges. The event was buzzing with discussions on cloud management, multi-cloud architectures, and the future of VM provisioning. It was clear that many organizations faced similar challenges, and the hunger for solutions was palpable.

 Streamlining VM Provisioning on Multi-Cloud:

Multi-cloud, as I highlighted during my talk, is the modern way forward. The flexibility it offers is unparalleled, but managing VM provisioning across diverse cloud platforms can be a daunting task. This is where VMware Aria Suite (SaaS) came into play. By automating and orchestrating the provisioning process, we achieved a level of efficiency we'd only dreamt of before. Requests were fulfilled swiftly and consistently across different clouds.

Cost Optimization Using VMware Aria Suite:

Cost optimization is a critical aspect of cloud management. The beauty of VMware Aria Suite is its ability to optimize costs seamlessly. Through intelligent resource allocation and monitoring, we were able to trim our cloud expenses significantly. Real-time insights allowed us to make data-driven decisions, avoiding unnecessary expenditures and ensuring that every penny was put to good use.

 Multi-Cloud Architecture and Use Cases:

Exploring the intricacies of multi-cloud architecture, we delved into various use cases. From ensuring high availability to disaster recovery, multi-cloud offered us the flexibility to cater to different needs. Case studies and practical applications showcased the versatility and robustness of this approach.

 Reducing VM Build Time:

The highlight of our journey was the reduction of VM build time from a frustrating 8 days to a mere 8 hours. The audience was enthralled as I detailed the strategies and tools we used. Automation, pre-configured templates, and intelligent workload placement were key elements in this transformation. Metrics spoke for themselves, highlighting the monumental improvements we achieved.

Key Takeaways:

Streamlining VM provisioning is essential for project efficiency.

VMware Aria Suite is a game-changer for cost optimization.

Multi-cloud architectures offer unparalleled flexibility and resilience.

Cutting VM build times enhances agility and productivity.

Our journey from days to hours in VM provisioning was not just a transformation for our organization, but a testament to the power of innovation in the tech world. As we continue to embrace the multi-cloud era and leverage tools like VMware Aria Suite, we are well on our way to unlocking even greater efficiency and cost savings.

I invite you to share your own experiences or questions in the comments section below. Feel free to connect with me on social media for further discussions on streamlining VM provisioning, cost optimization, and cloud management.

Session Recording:

VMUG Delhi - Streamlining VM Provisioning on Multi-Cloud, Cost Optimization, and Automated Security - YouTube

Wednesday, July 19, 2023

VMinclusion Taara: Empowering Women's Career Comeback with VMware's Free Technical Certification Program


Returning to work after a career break can be challenging, especially for women who may face various obstacles in re-entering the workforce. However, VMware, a leading technology company, has taken a significant step forward by introducing Taara, a women return-to-work program. Taara offers a free technical certification course designed specifically for women in India who have taken a career break. This blog post will provide an overview of the program, eligibility criteria, course details, and the numerous benefits it offers.

Who can apply? Taara is open to women who meet the following criteria:

  1. Career break: Applicants must have been on a career break for at least six months.
  2. Indian citizenship: Only women who are citizens of India and reside within the territorial jurisdiction of India are eligible.
  3. Graduation completion: Candidates should have completed their graduation at least six months ago and have not yet been employed by any organization.

Program Insights: Taara offers a well-structured learning path with three distinct levels of courses. Let's explore each level in detail:

Level 1 - Self-paced Learning: Course Name: VMware Certified Associate Duration: 3 to 8 Hours Exam: Online or Offline Upon completion, participants earn a VCA certificate, a digital badge, and a special voucher to unlock the next level.

Level 2 - Self-paced and Pre-recorded Teaching Videos: Course Name: vSphere: Install, Configure, Manage [v6.7] Duration: Theory - 20 hours, Hands-on Labs - 20 hours Exam: Online (Pearson VUE) or Offline Successful completion of this course rewards participants with a vSphere 6.7 Foundation certificate, a digital badge, and an exam voucher to unlock the next level.

Level 3 - Self-paced and Pre-recorded Teaching Videos: Duration: Theory - 20 hours, Lab - 20 hours Exam: VMware Certified Professional Exam (Based on the candidate's chosen area) Upon completing Level 3, candidates earn an industry-recognized certification based on their chosen area of expertise within the program.

Benefits: Taara offers a wide range of benefits for participants, including:

  1. Flexible Exam Options: Exams can be taken online or offline, allowing candidates to schedule them in advance at their convenience.
  2. Certification and Vouchers: At the end of each course, participants receive a certificate and an exam voucher to unlock the next level, helping them progress through the program.
  3. Free of Cost: Taara is a free program worth 2 lakhs, eliminating financial barriers for eligible candidates.
  4. Upskilling Opportunities: Participants gain access to additional upskilling trainings, mentorship programs, interview preparation guidelines, webinars, and other activities sponsored by VMware, ClealyBlue, and Smart Start.
  5. Doubt Clarification: VMware conducts regular webinars and technical sessions to address participant queries and provide further guidance.
  6. Job Portal Reservation: Women restarting their careers receive special reservations on job portals, improving their chances of finding suitable employment.
  7. Job Openings Updates: Dedicated WhatsApp and Telegram groups keep participants informed about the latest job openings in relevant fields.

Conclusion: VMware's Taara program is a commendable initiative that aims to empower women seeking to return to their professional careers. By offering a free technical certification course and a supportive learning environment, Taara provides the necessary tools for women to upskill and reenter the workforce confidently. If you're an eligible candidate, don't hesitate to apply for Taara and embark on an exciting new journey towards professional success.

Apply here:

We encourage all eligible women who are eager to restart their careers to take advantage of the Taara program offered by VMware. Don't let doubts or hesitations hold you back. Seize this opportunity to upskill, gain industry-recognized certifications, and open doors to new career possibilities. Register now and embark on an exciting path towards professional growth and success. Good luck on your journey!

Deploy Windows VMs for vRealize Automation Installation using vRealize Suite Lifecycle Manager 2.0

Deploy Windows VMs for vRealize Automation Installation using vRealize Suite Lifecycle Manager 2.0 In this post I am going to describe ...