VMware vSAN and HCI in 2026. What to weigh.

VMware vSAN turns local host disks into shared storage and anchors VMware HCI, but in 2026 it ships inside the VCF bundle and is priced per core, so an evaluation has to weigh usable capacity, core cost, and credible alternatives together.

This guide is for infrastructure and procurement leaders evaluating HCI in 2026. Read it with the VCF licensing guide and the Broadcom VMware Practice page so the storage design and the negotiation stay aligned.

What is vSAN and how does it fit HCI?

vSAN is VMware's software defined storage. It pools the local disks across your ESXi hosts into one shared datastore, removing the need for a separate array and forming the storage tier of VMware HCI.

How does vSAN work?

Each host contributes disks to the pool. vSAN handles redundancy and placement in software, so adding a host adds both compute and storage at once. That is the core of the hyperconverged model.

• Pooled storage: local disks become a shared datastore.
• Redundancy in software: policies decide how many copies exist.
• Scale with hosts: capacity and compute grow together.

Where does vSAN sit in the bundles?

vSAN comes with VMware Cloud Foundation, not the lighter VVF bundle. To use vSAN under Broadcom licensing you generally need VCF, which is documented on the VMware Cloud Foundation page.

How is vSAN licensed and priced?

vSAN capacity is licensed per core inside VCF, with a tiered amount of included storage per core. Capacity beyond the included tier is bought as additional storage.

How do you size usable capacity?

Raw capacity is not usable capacity. Redundancy policies consume space, so plan around what remains after the chosen failure tolerance, not the raw disk total.

Should you compare vSAN with alternatives?

Yes. If you are already reconsidering VMware, Nutanix and other HCI platforms can be more cost effective. A side by side evaluation on your real workloads keeps the decision evidence based.

What to do next

1. Measure current storage demand and growth, not peak alone.
2. Calculate usable capacity after your redundancy policy.
3. Size core counts to steady state, not worst case.
4. Confirm hardware sits on the vSAN compatibility list.
5. Run a side by side cost model against one HCI alternative.
6. Negotiate the VCF per core rate and included capacity tier.

Frequently asked questions

What is VMware vSAN?

VMware vSAN is software defined storage that pools the local disks of your ESXi hosts into a shared datastore. It removes the need for a separate storage array and is the storage layer of VMware's hyperconverged infrastructure.

Is vSAN included in VVF or only VCF?

vSAN is included in VMware Cloud Foundation, not in the smaller VMware vSphere Foundation bundle. If you want vSAN under Broadcom licensing in 2026 you generally need VCF or a vSAN add on where offered.

How is vSAN licensed in 2026?

Under Broadcom, vSAN capacity is licensed per core within VCF, with a tiered amount of included storage capacity per core. Storage beyond the included tier is bought as additional capacity.

Should you evaluate HCI with vSAN or an alternative?

Evaluate both. vSAN fits estates standardizing on the full VMware stack. Nutanix and other HCI platforms can be more cost effective if you are already reconsidering VMware, so a side by side evaluation is worth the effort.

What are the main vSAN evaluation criteria?

The key criteria are usable capacity after redundancy, performance for your workloads, the per core cost inside VCF, hardware compatibility, and operational fit with your team's skills.

What is the biggest vSAN cost trap?

The biggest trap is buying VCF for vSAN when you only use a fraction of the included capacity, or over provisioning cores. Sizing usable capacity and core count to real demand is where the savings sit.