[SOLVED] Disks showing up duplicated in Proxmox


New Member
Jun 2, 2023
I have 8 disks attached to a Supermicro Backplane (SAS2 EL2 dual expander) which attaches to an HBA. When I boot into proxmox all the disks that are on the HBA are duplicated (none of the other disks are). I've tried searching online but haven't found much. I also tried just booting into a ubuntu image, and the disks only show up there once, so it seems like it's an issue with Proxmox itself and not the hardware.

Proxmox v7.4-3

Anyone have any ideas as to the cause, further troubleshooting steps, or a possible solution?

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If the server has dual connections to disk shelf, then you have a "multipath" situation and need to configure it appropriatelly:

https://pve.proxmox.com/wiki/ISCSI_Multipath (its not SAS specific, but concepts are the same)

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox
Thanks, ended up switching a cable around on my backplane to not use the secondary SAS connector and that seems to have fixed the problem.


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