[pve-devel] General direct [i]SCSI storage plugin to extend for specific SAN

Dmitry Petuhov mityapetuhov at gmail.com
Mon Jun 27 12:02:46 CEST 2016

Will it be included in PVE distrib? Installing out-of-tree code to 
servers is little wrong way to go for users...

Also, it's using NFS for image access and I don't like NFS :)
I wanted to use iSCSI and later move to FC (when we buy adapers and 
switches). But volume manipulation code looks cool.

27.06.2016 12:24, Wolfgang Link wrote:
> Alexandre has written such a plugin for netapp, may be it fits to your
> needs.
> https://forum.proxmox.com/threads/proxmox-netapp-storage-plugin.20966/#post-112335
> On 06/27/2016 11:14 AM, Dmitry Petuhov wrote:
>> I want to write storage plugin for my Netapp iSCSI SAN. But I'm little
>> confused what to use as base.
>> ISCSIDirectPlugin.pm is first candidate, but currently it looks not very
>> usable. Am I right understood that the only way to use it is to manually
>> create LUN on SAN and write its number in VM config via cli?
>> ZFSPlugin.pm is more promising candidate, because of its extensibility
>> via LunCmd/* modules by design. Actually, it could become good general
>> direct-lun iSCSI plugin, if all ZFS-specific stuff would moved out to
>> LunCmd/* modules.
>> Another consideration is that LunCmd/* plugins can be used by other
>> transports of nowadays enterprise SANs, like SAS or FC. Their
>> volume-image-snapshot APIs are often pretty same for different
>> transports. At same time, actual transport can be masked at PVE side by
>> multipathd: we could associate SAN-specific image name with its WWN in
>> LunCmd code and feed qemu with unified devices
>> /dev/disk/by-id/wwn-0x{$wwn} generated by multipathd.
>> Any thoughts?
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