Hardware: ASRock j4205 with 8gb RAM, 2x4TB WD Red, crucial ssd 250gb (sata), 1gbit ethernet.
Hi,
I'm using proxmox on the j4205-itx board and run omv in a vm as a nas solution. I also want to have the to hdds mirrored/raid 1. As far as I understand there are four options to provide hdd storage for the ovm vm:
1. Creating a zfs-pool (raid 1) in proxmox and providing a virtual disk for the vm.
I tried this solution but the write speeds I get are terrible when I try to put stuff from my network onto the nas. The transfer starts at 100mb/s but after some time it goes from 0mb/s to 100mb/s and the transfer takes a lot of time.
2. Doing a hdd-passthrough for each single disk in proxmox and creating the raid 1 in the ovm vm.
I did not check the speeds with a raid yet, but with a normal filesystem in ovm, the speeds are pretty good.
But from what I read, this solution could be dangerous, because hdd-passthrough means that proxmox just creates a virtual disk itself and gives it to the vm. ?
3. Doing a passthrough of the onboard sata controller + raid 1 in omv
I think I could pull it off with this mainboard, but the ssd is also connected to the sata controller and has proxmox on it. Is there a way to prevent passing through the sdd?
4. Buying a separate pcie sata controller and pass it through + raid 1 in omv
If it comes to that option, which card could you recommend for my mainboard?
With option 1 and 2, I can only read the smart values in proxmox, but with option 3 and 4 I could do it in proxmox and in the vm, right?
Hi,
I'm using proxmox on the j4205-itx board and run omv in a vm as a nas solution. I also want to have the to hdds mirrored/raid 1. As far as I understand there are four options to provide hdd storage for the ovm vm:
1. Creating a zfs-pool (raid 1) in proxmox and providing a virtual disk for the vm.
I tried this solution but the write speeds I get are terrible when I try to put stuff from my network onto the nas. The transfer starts at 100mb/s but after some time it goes from 0mb/s to 100mb/s and the transfer takes a lot of time.
2. Doing a hdd-passthrough for each single disk in proxmox and creating the raid 1 in the ovm vm.
I did not check the speeds with a raid yet, but with a normal filesystem in ovm, the speeds are pretty good.
But from what I read, this solution could be dangerous, because hdd-passthrough means that proxmox just creates a virtual disk itself and gives it to the vm. ?
3. Doing a passthrough of the onboard sata controller + raid 1 in omv
I think I could pull it off with this mainboard, but the ssd is also connected to the sata controller and has proxmox on it. Is there a way to prevent passing through the sdd?
4. Buying a separate pcie sata controller and pass it through + raid 1 in omv
If it comes to that option, which card could you recommend for my mainboard?
With option 1 and 2, I can only read the smart values in proxmox, but with option 3 and 4 I could do it in proxmox and in the vm, right?