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This most commonly applies to network-based storage technologies, for example
NFS, SMB, iSCSI, and so on. In fact, all network-based storage types provided
by default are automatically marked as shared internally. See
here<https://pve.proxmox.com/wiki/Storage#_storage_types> for a full list of
all built-in storage types.
I assumed this applied to my plugin because it is using iSCSI. Not a big deal.
I actually think that the user may want to choose not to share the storage, so
having the option seem good.
________________________________
From: Max R. Carrara <[email protected]>
Sent: Monday, October 13, 2025 6:18 AM
To: Lorne Guse <[email protected]>; Proxmox VE development discussion
<[email protected]>; Morgan Littlewood <[email protected]>
Subject: Re: TrueNAS over iSCSI: Issue migrating VMs
On Tue Oct 7, 2025 at 11:03 PM CEST, Lorne Guse wrote:
> I managed to answer my own question. I implemented the shared option and
> explicitly set it to 1. I found it in the documentation but got confused when
> it indicated that all network types are automatically marked shared in the
> background.
Do you mean this chapter [0]?
Could you perhaps let me know what in particular was confusing? Maybe I
can rephrase some things there.
FWIW, making it possible to *always* mark a plugin's storage configs as
shared (like the built-in ones) is on my backlog, but I haven't gotten
around to implementing that yet.
>
> Migration now works as expected.
Glad it works!
[0]:
https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpve.proxmox.com%2Fmediawiki%2Findex.php%3Ftitle%3DStorage_Plugin_Development%3A_Writing_a_Storage_Plugin_for_SSHFS%23Supporting_Storage_Sharing&data=05%7C02%7C%7C07f1a6f7118c4b179f1608de0a5293cf%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638959546954125027%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=Q04Vgvfu6ADA%2F0NTZ6WP9cBhJE8JiEEQxI3bFS4cebo%3D&reserved=0<https://pve.proxmox.com/mediawiki/index.php?title=Storage_Plugin_Development:_Writing_a_Storage_Plugin_for_SSHFS#Supporting_Storage_Sharing>
>
> --
> Lorne Guse
> ________________________________
> From: Lorne Guse <[email protected]>
> Sent: Tuesday, October 7, 2025 2:25:33 PM
> To: Proxmox VE development discussion <[email protected]>;
> [email protected] <[email protected]>; Morgan Littlewood
> <[email protected]>
> Subject: TrueNAS over iSCSI: Issue migrating VMs
>
> I'm experiencing an issue migrating VMs.
>
> 2025-10-07 14:12:08 use dedicated network address for sending migration
> traffic (10.11.11.6)
> 2025-10-07 14:12:09 starting migration of VM 103 to node 'prox2' (10.11.11.6)
> 2025-10-07 14:12:09 found local disk 'nas:vm-103-disk-0' (attached)
> 2025-10-07 14:12:09 ERROR: Problem found while scanning volumes - can't
> migrate 'nas:vm-103-disk-0' - storage type 'truenas' not supported
> 2025-10-07 14:12:09 aborting phase 1 - cleanup resources
> 2025-10-07 14:12:09 ERROR: migration aborted (duration 00:00:01): Problem
> found while scanning volumes - can't migrate 'nas:vm-103-disk-0' - storage
> type 'truenas' not supported
> TASK ERROR: migration aborted
>
> I've been bouncing back and forth between the patch plugin and native plugin.
> I thought I had tested migrations with the new plugin in earlier versions.
>
> Does my storage have to be explicitly marked as shared?
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