Skip to content
Edouard Topin's Blog

Topic: vcf-9

All articles tagged “vcf-9”.

21 articles

2026

  1. 14 min read

    vDefend Distributed Firewall: zero trust at the workload level

    Least-privilege policy per vNIC, built on dynamic groups and tags rather than IP addresses — and the honest boundary where federated identity stops and the firewall starts.

  2. 16 min read

    VCF Identity Broker: where VCF 9.1 single sign-on actually stops

    VCF Identity Broker federates login across the VCF consoles, but the documented perimeter is narrower than the pitch. We map what it covers, what stays local, and the break-glass path.

  3. 16 min read

    Federating VCF identity: Okta, Entra ID, and the generic path

    Four identity providers are documented by name, each with its own protocol path. Everything else goes through generic SAML 2.0 — a route that works without being a support statement.

  4. 6 min read

    Capacity planning: ESA vs OSA, what really changes

    Switching from OSA to ESA changes how you size a vSAN cluster. We compare the two models side by side: usable capacity, headroom, and the new rules.

  5. 6 min read

    NVMe memory tiering: 2x VM density, and what it costs

    At the recommended 1:1 ratio, Broadcom reports 2x VM density with a 5–10% HammerDB performance loss; this guide defines the eligibility conditions.

  6. 6 min read

    RAID-5/6 on vSAN ESA: what replaces the write penalty

    ESA replaces read-modify-write with a durable log and aligned full-stripe writes, while vSAN 9.1 still documents a possible RAID-1 advantage.

  7. 7 min read

    VCF LCM: end-to-end workflows and failure recovery

    When a VCF 9.1 lifecycle batch fails, read real state before retrying. Map fleet, instance and domain recovery, prechecks and resource locks.

  8. 7 min read

    vSAN upgrades without downtime: ESA rolling patterns

    Roll ESX upgrades through vSAN ESA one host at a time: choose an evacuation mode, control resync, and stop safely when capacity or policy blocks progress.

  9. 6 min read

    ESXi live patching: kernel updates without reboot

    ESXi live patching lets you ship CVE fixes without evacuating hosts. We dig into how it works, what it does NOT cover, and where it changes your patch SLA.

  10. 11 min read

    RAG in production: from POC to scale on VCF

    Most RAG POCs die between demo and production. We walk through the gap — chunking, freshness, evals, observability — on VCF and VKS.

  11. 12 min read

    Vector databases on VKS: pgvector, Milvus, Weaviate

    RAG needs a vector store. We compare pgvector, Milvus and Weaviate on VKS — index quality, ops surface, and which one actually fits your team.

  12. 11 min read

    GPU pooling on VCF: NVIDIA vGPU + MIG in practice

    Sharing GPUs across tenants is the only way private AI math works. We walk through vGPU profiles, MIG slicing, and the pitfalls of mixed-workload scheduling.

  13. 11 min read

    Private AI on VCF: the architecture that fits in your DC

    VCF Private AI Foundation is the stack Broadcom proposes for hosting LLMs and inference in your own DC. We dissect it, layer by layer, seams visible.

  14. 4 min read

    Aria Operations meets open source: unified observability for VCF

    Connect VMware Aria Operations to Prometheus via remote_write, enrich Grafana with vSphere infrastructure metrics, and build unified dashboards that correlate VCF infra with Kubernetes workloads.

  15. 6 min read

    Centralised logging with Loki and Fluent Bit on VCF

    Build the PLG logging stack on VCF and VKS: deploy Fluent Bit as a DaemonSet, configure its pipeline stages, ship logs to Loki, and query them with LogQL.

  16. 7 min read

    Observability foundations for VCF: metrics, logs and traces

    The three pillars of observability defined by the OpenTelemetry specification, why they matter for VCF and VKS, and how to choose the right tool for each.

  17. 5 min read

    Prometheus & Grafana on VKS: the production monitoring stack

    Deploy kube-prometheus-stack on VKS, configure ServiceMonitors and PodMonitors, set up alerting, and integrate with Grafana dashboards — an annotated production guide.

  18. 7 min read

    Day-2 ops on VKS: lifecycle, upgrades, observability

    From creation to upgrade through backup and observability — operating a VKS cluster on VCF 9 without surprises. CAPI, VKr, Prom/Graf/Loki, and VCF Operations.

  19. 8 min read

    Networking in VCF 9: from vDS to pod, the packet path explained

    How a packet travels from the virtual switch to a VKS pod — vDS, NSX segments, T0/T1, NSX ALB and their trade-offs. The architect's networking guide.

  20. 5 min read

    The new VCF 9 architecture explained to architects

    VCF 9 is not a minor upgrade: it's a complete overhaul of the operational model. What a cloud architect must understand before any adoption project.

  21. 11 min read

    Deploying your first VKS cluster on VCF 9: An architect's guide

    VKS is not TKG renamed. Architecture, consumption paths, annotated YAML, day-2 ops, and real limitations — the architect's guide to VCF 9.