Technology Blog
Practical guides on VMware, VCF, cybersecurity and IT operations from certified consultants.
VMwareVMware vTPM Initialization Failed: Fixing "The Virtual Machine Must Be Encrypted" After Migration or Restore
Fix the VMware "Virtual TPM initialization failed" and "The virtual machine must be encrypted" errors that hit Windows 11 and Windows Server VMs after migration or restore. Step-by-step recovery covering Native Key Provider, BitLocker, UEFI, HCX and vTPM reset.
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VMwareVMware vSphere vTPM: The Deep Technical Guide I Wish I Had Before Deploying It
A deep technical guide to VMware vSphere vTPM: how virtual TPM 2.0 really works, why it needs a key provider, Native Key Provider backup and recovery, Windows 11 and BitLocker considerations, Copy vs Replace cloning, vMotion, templates, performance and disaster recovery.
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VMwareUnderstanding HCX OS Assisted Migration (OSAM): Sentinel Architecture and Switchover Behaviour
How HCX OSAM migrates non-vSphere guests using the Sentinel agent, SGW, SDR and SRG appliances, Windows and Linux differences, and switchover behaviour.
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VMwareUnderstanding HCX Assisted vMotion (Direct): Native Cross-vCenter vMotion, Orchestrated
How HCX Assisted vMotion (Direct) orchestrates native cross-vCenter vMotion, its requirements, and the restrictions including NSX-T and lack of diagnostics.
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VMwareUnderstanding HCX Replication Assisted vMotion (RAV): Parallel Replication, Serial Switchover
How HCX RAV delivers parallel, zero-downtime migration, its requirements and restrictions including independent disks and vVOL, and the two-folder behaviour.
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VMwareUnderstanding HCX Cold Migration: Requirements, NFC Behaviour and When to Use It
How HCX Cold Migration works for powered-off virtual machines, the NFC and firewall behaviour that catches people out, and when to use it over Bulk.
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VMwareUnderstanding HCX vMotion: Requirements, the Serial Constraint and What It Will Refuse
How HCX vMotion works, the 150 Mbps and hardware version requirements, why it runs serially, and the virtual machine attributes that block migration.
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VMwareUnderstanding HCX Bulk Migration: Requirements, Restrictions and Switchover Behaviour
How HCX Bulk Migration works, its requirements including encrypted VMs, the restrictions that block migration, and the switchover behaviour to plan for.
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VMwareHow to Configure Syslog on VMware vSphere 9 ESX Hosts
What changed in vSphere 9, why the hypervisor is now called ESX, and the log message format deprecation that will break your parsers if you ignore it.
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Disaster RecoveryBackup and Disaster Recovery (BDR) for SMBs: Requirements, Tests and Cost Traps
What a small or mid-sized business actually needs from backup and disaster recovery, how to prove it works, and the pricing structures that surprise people later.
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Cloud MigrationCloud Cost Optimization Playbook: 8 Immediate Wins for Mid-Sized Companies
Eight cloud cost optimisation actions that cut spend without re-architecting: unused resources, scheduling, right-sizing, reservations, tiering and egress.
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Cloud MigrationHybrid Cloud Architecture Decisions: When to Keep Workloads On-Prem and When to Move to Cloud
When to keep workloads on-premises and when to move to cloud: a per-workload decision framework, the costs both sides ignore, and four hybrid patterns that work.
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VMwareHow to Configure Syslog on VMware VCF 9 Hosts (ESX)
Standardising host logging across a VCF 9 fleet using vSphere Configuration Profiles, cluster-level desired state, drift detection and remediation.
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VMwareHow to Configure Syslog on VMware vSphere 8 ESXi Hosts
Remote syslog on ESXi 8 using the vSphere Client, ESXCLI, PowerCLI and Host Profiles, with the full advanced option reference, TLS, audit records and troubleshooting.
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Operations ManagementRFP Template and Evaluation Criteria for Managed IT Services
The sections a managed services RFP needs, the questions that reveal capability, and a scoring model that resists a polished response.
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Cloud MigrationManaged Services vs Self-Managed in the Cloud: ROI and Operational Tradeoffs
What you buy with a managed cloud service, what you give up, the costs both models omit, and a decision framework for comparing them honestly.
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Cloud MigrationPractical Cloud Migration Checklist: 10 Steps to Reduce Risk and Cost
A practical ten-step cloud migration checklist covering discovery, dependency mapping, cost modelling, landing zone, wave planning and decommissioning.
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Operations ManagementMonitoring and Observability for Integration Flows: KPIs, Tools and Playbooks
Integrations fail quietly. What to measure, how to instrument, and the playbooks that turn an alert into a resolution.
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CybersecurityEndpoint Management Decision Guide: MDM vs EDR vs UEM for Your IT Environment
MDM, UEM and EDR explained: what each does, where they overlap, which combination your environment needs, and the selection criteria that matter.
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Cloud MigrationHow to Choose the Right Cloud Migration Strategy for Your Legacy Applications
Rehost, replatform, refactor, repurchase, retire or retain. A decision sequence for choosing the right cloud migration strategy per legacy application.
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CybersecuritySelecting an Endpoint Protection Solution: EDR vs Traditional Antivirus for Enterprises
How EDR differs from signature-based antivirus, when antivirus alone is defensible, and nine criteria for evaluating EDR beyond the product demonstration.
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Cloud MigrationMigrating Legacy Databases to Cloud: A Step-by-Step Plan, Risk Matrix and Post-Migration Checklist
A step-by-step legacy database migration plan, a risk matrix covering collation, indexes and dependencies, and a post-migration checklist that catches silent failures.
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VMwareVMware Cloud Director Common Errors and Known Issues: Symptoms, Causes and Workarounds
A field reference to the Cloud Director failures that actually happen on provider platforms: cells that will not start, hanging tasks, stuck uploads, placement failures and stranded objects.
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VMwareThe VMware Cloud Director API for Day-to-Day Operations: The Calls You Will Actually Use
Authentication, the query service, deploying from template, power and undeploy, snapshots, disks and task handling - with notes on what carries forward into VCF Automation.
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VMwareThe Complete VCD to VCF Automation Migration Checklist: 72 Checks for Service Providers
Seventy-two checks across assessment, tenant discovery, construct mapping, platform build, cutover, parallel running and decommissioning - in the order the work actually happens.
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VMwareVMware Cloud Director 10.x vs VCF Automation 9.1: A Feature Parity Comparison for Service Providers
A side-by-side comparison of Cloud Director 10.x and VCF Automation 9.1 across tenancy, networking, storage, catalogues, Kubernetes, identity, metering and operations - including where Cloud Director still wins.
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VMwareVMware Live Site Recovery vs Zerto vs Veeam: Comparing DR Options for On-Premises VMware Workloads
Comparing the main DR options for VMware estates by architecture and recovery outcomes rather than by feature count, plus how to run a defensible evaluation.
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VMwareThe VMware Live Site Recovery Checklist: 68 Checks for Design, Deployment, Testing and Failover
A working checklist of 68 checks across objectives, design, deployment, protection groups, recovery plans, mappings, test failover, invocation and failback.
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VMwareMigrating Tenants Off Cloud Director Without Losing Them: Communication, Cutover and Parallel Running
The half of a VCD to VCF Automation migration that is not infrastructure: telling customers, sequencing them, running two platforms and getting the billing right.
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VMwareVMware Cloud Director Migration Services: Scoping and Pricing a VCD to VCF Automation Programme
What a provider migration engagement actually contains, why tenant count predicts cost better than workload count, and how to read a proposal before you sign it.
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VMwareDesigning and Deploying VMware Live Site Recovery: Architecture, Replication and Recovery Plans
Topology, replication selection, sizing, protection group structure, recovery plan design and the inventory mappings that decide whether a failover actually works.
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VMwareUsing the VCF Automation Migration Tool: Environment Assessment Through to Tenant Cutover
The supported migration path from Cloud Director to VCF Automation: the assessment stage, the Migration Service, workload mobility by version, and what to have ready at each gate.
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VMwareSRM vs VMware Live Site Recovery: Feature Parity, What Changed and What Is New
A side-by-side assessment of Site Recovery Manager 8.x against VMware Live Site Recovery 9.0.x: what carried over unchanged, what improved and what is genuinely new.
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VMwareVMware Site Recovery Manager to VMware Live Site Recovery: The Complete Guide
What the SRM rebrand actually changed, how VMware Live Site Recovery fits into VMware Live Recovery, and what it means for a DR estate built on Site Recovery Manager.
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VMwareVMware Cloud Director to VCF Automation Migration: The Complete Guide for Service Providers
The platform your provider business runs on is being replaced. What VCF Automation is, how the migration path works, what it does to your tenants, and how to phase a programme that cannot fail quietly.
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VMwareVMware Cloud Director End of Life: What the VCF Automation Transition Means for Your Provider Business
How long do you have? The Cloud Director lifecycle position, what 10.6.2 actually changes, and how much runway a provider migration to VCF Automation really needs.
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VMwareVCF Automation for VMware Cloud Director Administrators: What Carries Over and What Does Not
Half of VCF Automation will feel like coming home. The other half is a different product entirely - and it is the half your tenants use.
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VMwareMapping VMware Cloud Director Constructs to VCF Automation: Org VDCs, Edge Gateways, Catalogs and IP Spaces
The mapping that causes the most friction in a VCD to VCFA migration, with the design decision each construct forces and the order to make them in.
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CybersecurityPreparing for an IT Security Audit: A 30-Day Remediation Roadmap
A week-by-week plan for the month before an IT security audit: access reviews, technical controls, evidence and the findings auditors raise most often.
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Cloud Migration3 Quick Signs Your Business Is Ready to Move Non-Critical Workloads to the Cloud
Three readiness signs for moving non-critical workloads to the cloud, what non-critical actually means, and how to choose a safe first migration.
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Disaster RecoveryDRaaS vs Traditional Backup: Choosing the Right Business Continuity Plan
Backup and disaster recovery solve different problems. How DRaaS, replication and traditional backup compare on RPO, RTO, cost and testing.
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VMwareVMware HCX Port Requirements Explained: A Complete Guide to HCX Network Flows
Every firewall rule for VMware HCX explained: HCX Manager, HCX-IX and HCX-NE ports, protocols, directions and purposes - including UDP 4500, TCP 9443, 8123, 31031, 44046 and a consolidated port reference table.
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VMwareTroubleshooting HCX Migration Failures: Which Log to Read and What to Gather Before You Open a Case
A Consult Circle technical guide to the HCX log estate, matching the failure to the component that owns it, and assembling an evidence pack that gets a support case moving on the first reply.
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VMwareHCX Bulk and RAV Migration Stuck at 0% Base Sync: Causes, Diagnosis and Fixes
HCX Bulk Migration or RAV stuck at 0% base sync? Diagnose the vSphere Replication handshake failure: port 31031, MTU, VMkernel tagging and fixes.
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VMwareVMware Cloud Foundation 5.x vs VCF 9.x: Key Differences, Architecture Changes and Upgrade Considerations
What changes between VCF 5.x and VCF 9.x across architecture, lifecycle management, operations and automation, and what an upgrade assessment must cover.
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VMwareVMware HCX Migration Problems and How to Fix Them: Service Mesh, Network Extension and Failed Transfers
Activation, pairing, Service Mesh tunnels, throughput, stalled transfers and switchover failures, with a diagnostic sequence that works.
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VMwareMigrating from Legacy vSphere to VMware Cloud Foundation (VCF) Using HCX
A Consult Circle technical guide to VCF migration planning, HCX pre-checks, and Bulk vs. RAV migration strategy.
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VMwareThe Complete VMware HCX Migration Checklist: 70 Checks Before, During and After Cutover
Seventy checks across discovery, compatibility, network, storage, build, execution and decommissioning for a vSphere to VCF migration.
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VMwareVCF Migration Services for vSphere 7 and 8 Estates: What Changes After End of Support
Patching, support, compatibility and compliance after vSphere 7 and 8 end of support, plus the four realistic options and the runway each one needs.
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VMwarevSphere to VCF Migration and Upgrade Paths: In-Place, Side-by-Side or Greenfield
In-place conversion, side-by-side migration or greenfield build: which route from vSphere to VCF suits your estate, and why hardware usually decides it.
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VMwareHow to Migrate to VCF Using HCX: A Step by Step Walkthrough from Site Pairing to Cutover
A practical walkthrough of an HCX migration to VCF, from deploying HCX Manager through site pairing, Service Mesh and the cutover window.
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VMwareVMware Migration Services: How to Scope, Price and Run a VCF Move
What a genuine VCF migration engagement contains, what drives the cost, and how to tell a good proposal from a thin one.
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VMwareVMware Cloud Foundation (VCF) 9.0: What's New and FAQ
VMware Cloud Foundation (VCF) 9.0 brings significant changes to private cloud infrastructure management. Learn about the new subscription-based licensing model, mandatory VCF Operations integration, improved VCF Installer, and how VCF Import lets you convert existing vSphere environments without downtime.
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VMwareLearn How to Start Migration from NSX-v to NSX-T
If you're like most people, you're probably thinking, "Why should I switch from the tried-and-true VMware NSX for vSphere to the new kid on the block, NSX-T?" Well, let me tell you, there are plenty of good reasons!
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Operations ManagementThe Ultimate Guide To CSAT, NPS AND CES
If you're in the business world, chances are you've heard of CSAT, NPS, and CES. But what are they? And, more importantly, which of those is best for your company?
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Disaster RecoveryDisaster Recovery Terms to Know in Business
A plain-English glossary of the terms that appear in disaster recovery plans, supplier contracts and audit questions.
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Operations ManagementUltimate Guide to a Microsoft Active Directory (AD) Health Check
Our Microsoft Active Directory (AD) Health Check service is designed to give you peace of mind about the health and performance of your AD infrastructure.
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CybersecurityThe New Chaos Malware: What You Need to Know
It's been a tough year for the cybersecurity world. We've seen some of the biggest data breaches in history, new and improved strains of malware, and an overall increase in cybercrime.
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VMwareThe Best VMware Management Tools In Use Today
Virtual machines (VMs), as well as those that use VMware, have emerged as an increasingly popular choice for administrators looking to solidify their systems all while keeping up with the rapidly evolving digital environment in recent years.
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Operations ManagementThe Ultimate HTTP Website Error Code Guide
HTTP Website Error Code Explained. If you own a website, you will definitely run into HTTP website error code at some point.
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VMware3 Biggest Benefits Of The vSphere Health Check
Here at Consult Circle, we love VMware. Why? Because it is a massive product that provides total scalability, flexibility, and availability across customer infrastructures.
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VMware30 Tools For The Ultimate VMware Administrator
As a VMware administrator, it's important to have a toolkit of utilities and applications that you can rely on to help you with your day-to-day tasks, as well as those bigger projects.
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Operations Management10 Linux Commands That Will Make Your Life Easier
Linux is a free and open-source operating system that is typically used by professionals in the tech industry.
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VMwareHow to Configure Syslog on VMware vSphere 7 ESXi Hosts
How to Configure Syslog on VMware vSphere 7 ESXi Hosts. Use ESXCLI or vSphere Web Client to configure Remote Syslog settings.
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VMwareTop 10 VMware Vulnerabilities Now in 2022!
Top 10 VMware Vulnerabilities To Patch In Now in 2022! VMware Security Advisory (VMSA) releases information on latest CVE vulnerabilities.
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Operations Management5 Simple Steps you need to know for an Effective Patch Management Solution
A practical 5-step framework for enterprise OS patch management.
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Operations ManagementHow to Plan Your Next Cisco UCS Converged Infrastructure Upgrade
Plan your Cisco UCS upgrade from design and install through to maintenance.
Read articleWindowsKMS Volume Activation Error Code 0x8007232B
If you're an engineer working with Microsoft products, you may have come across the following error message: "Error Code 0x8007232B DNS name does not exist."
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