bhyve pci passthru Truenas of a drive?

[EtienneB]

Hello,
I am wondering if is possible with the Virtual Machines under Truenas 12 using hte PCI Passthru option to pass through a dedicated hard disk to my Virtual Machine?
I have seen the wiki of bhyve passthru with vmm_load etc. and under Freenas it didn't seem possible I read in these forums.

I believe I can passthrough a full disk controller. But if I understand correctly, then the whole controller is unusable by the host system, right? So breaking my pool?

I have 8 drives connected to my SAS controller and would like to passthrough 2 harddrives and perhaps even 2 SSDs (so 4 out of these 8 ports).
That is from a controller on my Supermicro X10SL7-F board.
I also have an IBM 1015/LSI SAS-controller with another 8 drives which are all part of my pool, together with the other 4 SAS ports of the motherboard above.

A zvol option is suboptimal for me as I have to set the size fixed while I would like to use the whole drive and causes overhead too.

Any thoughts are welcome!

 

[Patrick M. Hausen]

As the name PCI passthrough suggests you can only pass through PCI(e) devices. So, entire controllers/HBAs, network adapters, NVME disk devices (which come with their own controller, each) - but not a single disk on a PCIe HBA.

 

[EtienneB]

Thank, just as I figured/feared ;-)
I got a 4 port SATA 3Gbps controller on that board too, but not really preferable for a SSD....