Re: FC Storage integration

["Karel Beneš" <chucky@seznam.cz>]

Hi,
if you can, and it looks like you do, then please do. You’ll make a whole bunch of people happy, including those who don’t answer in mailing lists and forums. I have personally never worked with a Hitachi storage (only HP, 3PAR, NetApp and Dell), but the functionality you describe is exactly where I’d shout “yes, I want it too”.
Regards,
Karel


> On 2026. Jun 30., at 4:24, Cyrus <cyruspy@gmail.com> wrote:
> 
> Hello,
> 
> It's currently working!:
> 
> - LUN create/elimination
> - Mapping/Masking
> - Masking/Unmasking on migration
> - Snapshots
> - Clone was implemented, but PVE cannot drive it (at least I could
> find how to avoid cloning via dd on host side and offload to the
> storage layer)
> 
> Everything is driven from PVE 9.2, the only annoyance is that the
> storage REST interface is taking 6 seconds to respond to simple
> queries (upgrade pending). Today is SCSI-3 Persistent Reservation day.
> I will enable some use cases like Windows Server Failover Clusters.
> 
> The module is centered in Hitachi VSP, I'm mostly interested in
> understanding if there are more users to justify a full refactor to
> accommodate multi-vendor support.
> 
> Regards.
> 
>> El lun, 29 jun 2026 a las 18:09, Karel Beneš (<chucky@seznam.cz>) escribió:
>> 
>> Hi,
>> If you’re seeking for reassurance, then lately I was thinking about this too. Why VM-level snapshots on FC storage, when nowadays these storage boxes are smart enough to do LUN-level snapshots. All it would require is proper layout on the storage side. If a LUN (or more LUNs) is dedicated to a VM, then you need to freeze the writes in a VM for a little and call the API of the storage to snapshot the LUN. Removal of a snapshot would be fully transparent. Where it gets more complicated is an app-aware snapshot. And revert to a snapshot, that would have to be done very carefully, nodes should not start panicking that they lost storage. Is this what you meant?
>> 
>> Regards,
>> Karel
>> 
>> 
>>>> On 2026. Jun 29., at 14:20, Andrei Boros <andrei@srr.ro> wrote:
>>> 
>>> Hi,
>>> 
>>> We are interested in using FC based storage in PVE, including HA with
>>> multipath.
>>> 
>>> I am not sure what you mean by "the specialized box". The plugin, the
>>> backend, other?
>>> 
>>>> On 2026-06-26 1:06 AM, Cyrus wrote:
>>>> Hello!,
>>>> 
>>>> It seems the pve-devel mail list is not very welcoming or I am doing
>>>> something wrong. I would  try another angle: asking the users.
>>>> 
>>>> Is there any interest in having a storage plugin to integrate to FC
>>>> Storage systems in a 1 vdisk = 1 LUN fashion?. That should allow you
>>>> to offload some operations like cloning/snapshots operations to the
>>>> specialized box.
>>>> 
>>>> I'm currently testing an integration with Hitachi VSP, but it could be
>>>> generalized to accommodate specific brand/model drivers (would assume
>>>> Dell, HPE, Huawei, Purestorage are still selling similar systems)
>>>> 
>>>> Regards.
>>>> 
>>> 
>>> --
>>> 
>>> *ing. Andrei Boros*
>>> 
>>> Serviciul IT&C
>>> *Radio Romania*
>>> |Tel:   +40-21-303-1870
>>>       +40-745-115721
>>> Email: andrei@srr.ro <mailto:andrei@srr.ro>|
>>> 
>>