I know I can get a LSI hba but I don't see the need for the extra power consumption with the chip on the card and not supporting ASPM. I need to add another sata controller as I am moving proxmox boot disks from mirrored nvme to mirrored enterprise sata ssds. My motherboard has 8 sata ports but I am passing through the controller to unraid so I need to add another sata controller for proxmox boot. I was originally thinking about a simpleASM1166 on a pcie card(didn't really give enough ports) but then I stumbled across the ASM2812 and ASM2824 with on pcie. So my question is can I use a combination of both and use 2x M.2 ASM1166 adaptors with the ASM2812 PCIe 3.0 X4 Adapter with PCIe Bifurcation Function. My motherboard doesn't have bifurcation. I know the ASM1166 are low power at about 2 watts each so 4 watts, what I am not sure about is the power consumption of the ASM2812 and will they will even work in this configuration. I know the lowest an LSI board will give is about 6.5watts and that's only for 8 ports, this setup will give 12 ports possibly with the ability to separate the controllers to different VMs? Any one know if this will actually work and is stable?
FYI I am planning on using the motherboard sata controller for proxmox boot and use the dual M.2 ASM1166 for unraid. With my motherboard if I add a pcie card in the 3rd pcie slot the 8 sata ports are reduced to 4 ports because they share bandwidth.
I did find this post doing the same thing but I still have my questions if this is even a good idea.