VSAN Free KVM license shows Physical Disk option locked

Software-based VM-centric and flash-friendly VM storage + free version
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alchemista1979
Posts: 3
Joined: Wed Sep 23, 2026 12:40 pm

Wed Sep 23, 2026 12:47 pm

Heya

Long time lurker - first time poster in here :)

I am setting up StarWind VSAN Free on a three-node oVirt/KVM environment using Controller VMs.

The license registers successfully and shows:

StarWind VSAN v8.0, Build 20086
Platform: KVM Virtual Machine
Servers per license: 3
Multi Node Devices Capacity: Unlimited
Licensed feature: Synchronous Replication

Each CVM has two raw Intel DC SSDs passed through directly from the KVM host. The disks are clean and visible inside the CVMs as /dev/vdc and /dev/vdd.

However, in StarWind Management Console → Add Device, the Physical Disk option is locked. Only Virtual Disk is selectable.

Is direct physical-disk export supported by this VSAN Free license? If so, is a different license file or configuration required?

Our intended design is RF2/two-way synchronous replication using the two raw SSDs in each CVM. I would prefer not to create image-backed virtual disks on top of the raw disks.
yaroslav (staff)
Staff
Posts: 4470
Joined: Mon Nov 18, 2019 11:11 am

Wed Sep 23, 2026 2:00 pm

Welcome to StarWind Forum :)
You cannot do RAW devices in CVM. In CVM, RAW is used only for NVMe-oF. You need file system for StarWind HA IMG files.
I think that's the problem with how the Ubuntu CVM UI interacts with the disks. Stick with the CLI.
You will need to create a LVM and VD inside the CVM through CLI. Format them as XFS afterward, mount to /mnt/<device name>, and make the corresponding changes in the /etc/fstab.

P.S. I hope a Debian-based CVM should work better.
P.P.S 20086 is outdated. Request VSAN Free, not VHCI Free, you should get 20089 (i.e., the latest build).
alchemista1979
Posts: 3
Joined: Wed Sep 23, 2026 12:40 pm

Thu Sep 24, 2026 10:26 am

Thx - I redeployed using the debian-based CVM.
I got a lot further:
3 appliances deployed
seeing all disks:
created_pool.png
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created the storage pool
created_pool.png
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but the storage pool screen remains empty:
created_pool.png
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Attachments
starwind disks.png
starwind disks.png (113.25 KiB) Viewed 515 times
empty_screen.png
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yaroslav (staff)
Staff
Posts: 4470
Joined: Mon Nov 18, 2019 11:11 am

Thu Sep 24, 2026 10:34 am

Those are QUEMU devices, not RAW or passed through.
The controller type, SCSI HDD indicates that the SCSI controller is used. I don't think we've tested that option.
Please try a different virtual controller type or pass them through into the CVM.
alchemista1979
Posts: 3
Joined: Wed Sep 23, 2026 12:40 pm

Thu Sep 24, 2026 8:14 pm

I got a lot further - thx for the your final tip, @yaroslav (much appreciated)

still stuck on which powershell to use in order to create a physical disk as ISCSI lun :mrgreen:
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A pointer is really much appreciated :)
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