For years, a common objection in Nutanix evaluations had nothing to do with the hypervisor. It was the array: moving to HCI meant writing off a SAN with years of support left. As of October 2026, that objection is much weaker. Nutanix compute clusters now run against Everpure FlashArray (Pure Storage renamed itself Everpure in February 2026) and Dell PowerStore over NVMe/TCP, and against Dell PowerFlex through Dell’s own client, all generally available. NetApp ONTAP over NFS is announced and, according to Nutanix, planned for availability this fall. And January’s FlashStack with Nutanix launch turned the FlashArray option into a pre-validated converged stack from Cisco, Pure Storage and Nutanix.
This brief covers what actually shipped, what it does to the VMware-exit math, and who should still buy integrated Nutanix nodes anyway.
Comparing platforms? The VMware Alternatives Tracker lists licensing, published prices, free options and migration tools for each platform, dated against the vendor’s own pages.
What changed
Nutanix built its brand on collapsing three-tier infrastructure. Every node ran AOS, compute and storage scaled together, and your existing array had no role except the recycling dock. That architecture was the pitch, and also the problem, because it forced a storage buy into every deal.
Through 2025 and 2026, Nutanix deliberately walked that back. In its compute clusters the Controller VM “does not manage any local disk drives,” according to the Nutanix Cloud Bible; user VM data lives on the array. Dell PowerFlex came first, generally available on April 30, 2025, using Dell’s SDC (Storage Data Client). Pure Storage FlashArray followed on December 10, 2025, and at .NEXT on April 7, 2026, Nutanix extended support from the //X and //XL to the //C FlashArray and added synchronous disaster recovery. Dell PowerStore was in early access in April and became available with NCI 7.6 on July 28, 2026.
NetApp ONTAP is the one still on the way. Nutanix announced it at .NEXT on April 7, 2026 as an NFS-based integration for AFF A-series and select FAS systems, and the Nutanix Cloud Bible says NetApp “Will utilize NFSv3.” The partnership blog put early access underway, “with general availability (GA) targeted for Q3 2026”; Nutanix’s latest word, a September 29, 2026 blog, says it is “planned for availability this Fall with an upcoming Nutanix Cloud Infrastructure release.”
Then on January 13, 2026, Cisco, Pure Storage and Nutanix announced general availability of FlashStack with Nutanix: UCS compute, FlashArray storage over NVMe/TCP, and NCI with AHV as a jointly validated converged architecture, with lifecycle management across Intersight, Prism and Pure1. That makes the FlashArray option more than a compatibility listing: a packaged alternative to vSphere on converged infrastructure.
Why it matters for the VMware-exit math
A VMware-exit business case tends to have the same three ugly lines: new hardware, data migration, and project risk. External storage support attacks all three.
- Hardware: an array with years of depreciation and support left keeps doing its job. You buy compute nodes, not a full HCI refresh.
- Migration: the data can stay on the same array. You present the array to AHV compute nodes, migrate VMs off ESXi, and retire hosts. For vVol-based VMs on an Everpure FlashArray, Nutanix Move 6.3 adds zero-copy migrations that clone disks inside the array, so “the data stays in place.” Nutanix says support for NetApp’s Shift Toolkit, for zero-copy migrations on ONTAP, is coming soon.
- Risk: a hypervisor swap with storage in place is a materially smaller project than a hypervisor swap plus a storage platform swap. Fewer moving parts, shorter rollback path.
The verdict is short: a major capex line in the Nutanix column of your Nutanix vs. VMware cost model can shrink. If you priced an AHV migration before these integrations shipped and rejected it on hardware grounds, that number is stale. Reprice it, keeping in mind that the compute-only license, NCI-C, “is priced on a per-core basis.”
The external storage matrix, as of October 2026
| Protocol | Status (October 2026) | Notes | |
|---|---|---|---|
| Everpure (formerly Pure Storage) FlashArray | NVMe/TCP | GA since December 10, 2025 | //X and //XL at launch; //C added April 7, 2026; the FlashStack with Nutanix reference design |
| Dell PowerFlex | Dell SDC client (Ethernet-based) | GA since April 30, 2025 | Software-defined; the first external storage integrated with the Nutanix platform |
| Dell PowerStore | NVMe/TCP | Available with NCI 7.6 since July 28, 2026 | Deployed through Dell Private Cloud; early access as of April 2026 |
| NetApp ONTAP | NFS (NFSv3) | Early access; not yet GA | AFF A-series and select FAS; announced April 7, 2026; Nutanix said on September 29, 2026 it is planned for availability this fall |
Read the status column literally. A planned or early access integration means you can pilot, not that you can build a production migration this quarter on it. And every row carries qualifications (supported server platforms, protocol constraints and feature dependencies), so treat the hardware compatibility list as a gate, not a suggestion.
The vendor-by-vendor read
Everpure: the packaged option
The Everpure integration runs over NVMe/TCP, covers three FlashArray families (//X, //XL and //C) and comes packaged as FlashStack with Nutanix, a converged design validated with Cisco. If your arrays are already FlashArray, this is a short path off ESXi, especially for vVol-based VMs that Move 6.3 converts without copying data. The trade-off: the FlashStack design assumes you are willing to standardize on the Cisco and Everpure pairing. Everpure’s Evergreen model, which the launch post describes as “ongoing, non-disruptive upgrades” without repurchasing storage, fits the whole premise here: keep the array, upgrade in place, stop forklifting.
Dell: two shipping tracks and an HCI appliance
Dell now has two generally available tracks. PowerFlex is a software-defined system that Nutanix reaches through Dell’s own SDC client rather than NVMe/TCP, and Nutanix positions it for “large mission-critical environments.” PowerStore, Dell’s all-flash array, joined with NCI 7.6 in July 2026 over NVMe/TCP, deployed through Dell Private Cloud. Nutanix’s 2025 launch post also says PowerFlex is offered alongside Dell XC Plus, Dell’s HCI appliance powered by NCI, so ask the account team to price the external storage path and the HCI path side by side. Get supported configurations in writing.
NetApp: the sleeper, once it ships
The ONTAP integration announced at .NEXT targets VMware estates that already run on NetApp AFF and FAS arrays, letting them adopt AHV while keeping that storage, and storage teams keep using ONTAP tools. NFS-based consumption keeps it operationally simple. The caution is timing: the Q3 2026 GA target has passed, and Nutanix now says “this Fall.” If your renewal lands before general availability plus a sensible pilot window, ONTAP support is a later lever, not a current one.
Cisco: the packaging play
Cisco’s contribution is UCS compute and the Cisco Validated Design behind FlashStack with Nutanix, with Intersight lifecycle management alongside Prism and Pure1. Cisco says existing UCS customers can use servers from “generations as far back as the B200 M5,” which removes much of the integration homework for UCS shops. Cisco is also part of FlexPod with Nutanix, combining Cisco compute and networking with NetApp storage, which Nutanix said on April 7, 2026 is planned for availability later this year.
Nutanix: a reversal, and a smart one
Credit where due: Nutanix spent years arguing three-tier was legacy, and now it sells into three-tier. That is pragmatism, and it widens the funnel. The honest caveat: on external arrays, more of the data services live on the array. The Nutanix Cloud Bible says compression, deduplication and encryption “are offloaded to the external array,” and the NCI-C datasheet says snapshot and clone operations are delegated to the storage partner, while Nutanix Disaster Recovery still orchestrates snapshots and replication. The “one platform, one support call” story gets more nuanced the moment a second storage vendor is in the room.
Who should still buy integrated Nutanix nodes
External storage support does not kill the HCI pitch; it narrows it to where it was always strongest. Buy integrated nodes when the array is close to a support renewal or refresh anyway, when you are deploying edge or ROBO sites where a SAN never made sense, or when you want one operational model and one throat to choke: AOS data services, native DR, and a single upgrade train. That consolidation value is real; it was just never worth writing off a healthy array to get.
A workable rule of thumb: plenty of array support runway and adequate headroom, go compute-only against the array. Renewal coming up soon, price both paths; the integrated node quote can land closer than you expect once array support renewal costs are in the model.
What to do about it
- Inventory array support runway and utilization before any vendor conversation. The array’s remaining life is now a negotiating asset in every VMware alternatives evaluation, not a constraint.
- Ask Nutanix to quote compute-only nodes against your existing array and full HCI nodes side by side. Make them show both numbers.
- Check feature dependencies early: metro clustering, synchronous replication, and backup vendor integration can behave differently on external storage than on AOS, and they vary by array. Get specifics per array, in writing.
- Pilot on a non-production cluster before committing a migration wave, especially anything not yet generally available.
- If you are also weighing keeping vSphere but dropping vSAN, run the same array-reuse logic across the vSAN alternatives field; the pattern is identical.
The takeaway for the meeting: Nutanix no longer requires a storage decision to make a hypervisor decision. Price your exit accordingly.
Frequently asked questions
Does Nutanix AHV support external SAN storage?
Yes. As of October 2026, Nutanix compute clusters can use Everpure (formerly Pure Storage) FlashArray and Dell PowerStore over NVMe/TCP and Dell PowerFlex through Dell’s SDC client, all generally available. NetApp ONTAP over NFS is announced, and Nutanix says it is planned for availability this fall. Support comes with qualified hardware lists and protocol requirements, so verify your exact configuration.
What is FlashStack with Nutanix?
A converged infrastructure architecture from Cisco, Pure Storage (now Everpure) and Nutanix, generally available since January 13, 2026. It pairs Cisco UCS servers and FlashArray storage over NVMe/TCP with Nutanix Cloud Infrastructure and AHV, validated jointly and managed through Intersight, Prism and Pure1.
Does external storage mean losing Nutanix data services?
Some of them move to the array. Compression, deduplication and encryption are offloaded to the external array, and snapshot and clone operations are delegated to it, while Nutanix Disaster Recovery still orchestrates snapshots and replication. Map your DR and backup requirements against the specific array integration before committing.
Is moving to Nutanix cheaper than renewing VMware?
It depends on your renewal quote, host counts, and hardware timing, but external storage support removes the forced array write-off that used to sink the comparison. Model compute-only nodes against your existing array before assuming the incumbent renewal wins.
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