ZFS config with 5 SSDs

[fahadshery]

Hi All,

I am new to Proxmox...
I have 5 x 800GB Enterprise SSDs. I wish to use these SSDs for VMs. Which ZFS configuration would suit? RAIDZ or RAIDZ2?

I also have 11 x HGST HDDs. I wish to pass these to TrueNas but my SSDs and HDDs are all connected to the same H310 mini RAID controller in flashed IT mode. So I can't do the PCI passthrough. Is there a better way to pass these to TrueNas VM?

thanks in advanced

 

[Dunuin]

Hi All,

I am new to Proxmox...
I have 5 x 800GB Enterprise SSDs. I wish to use these SSDs for VMs. Which ZFS configuration would suit? RAIDZ or RAIDZ2?

If you want good performance you should use 4 of them as stripped mirror (raid10). Raidz1/2/3 isn't a good choice as storage for your VMs virtual HDDs.

I also have 11 x HGST HDDs. I wish to pass these to TrueNas but my SSDs and HDDs are all connected to the same H310 mini RAID controller in flashed IT mode. So I can't do the PCI passthrough. Is there a better way to pass these to TrueNas VM?

No, PCI passthrough is the only way a VM is capable of directly accessing a drive without using virtualization as a additional abstraction layer between the drives and the VM. Best way is to get another HBA if your mainboard itself has no free ports you can connect the 5 SSDs to.

 

[fahadshery]

If you want good performance you should use 4 of them as stripped mirror (raid10). Raidz1/2/3 isn't a good choice as storage for your VMs virtual HDDs.

No, PCI passthrough is the only way a VM is capable of directly accessing a drive without using virtualization as a additional abstraction layer between the drives and the VM. Best way is to get another HBA if your mainboard itself has no free ports you can connect the 5 SSDs to.

I manually assigned the drives using drive-by-id to truenas and created the pool. Been testing it for few weeks now and working great without any issues