Two drives in VM Proxmox but only one in Truenas

I’ve installed a truenas in VM image on proxmox. Passed two drives 10 gb each , one drive used for truenas installation .I don’t see the other drive in truenas.

Probably I’ve understood why ; the truenas installation wants a 16 gb drive to boot from

Not sure about SCALE, but I’ve installed my CORE on just an 8 GB drive, so I don’t think that’s the issue. You should probably use 16 GB though just to make sure the drive will have enough space for future upgrades that could potentially demand more space.

I 've to check again a this point.
I only know that Truenas proceed to boot with one 16 gb drive .
In the past with 10 gb drive didn’t boot.