Virtual Disk question

[IroesStrongarm]

I think I'm having a major misunderstanding of how some systems function and I'm hoping to get some proper clarity. I have a Proxmox server with a pair of drives mirrored for VM storage. I want to virtualize TrueNAS. I know it uses ZFS as its OS filesystem. I also know that ZFS on ZFS is bad.

When I create the VM using the wizard, and I assign the virtual disk to be stored on the mirrored ZFS pair in Proxmox, is this virtual disk ZFS? What I mean is does this create the ZFS on ZFS scenario?

 

[_gabriel]

truenas require its own dedicated disks, at least pass-through disks or better pass-through a hba.
ZFS on ZFS is only ok to do some tests.

 

[IroesStrongarm]

truenas require its own dedicated disks, at least pass-through disks or better pass-through a hba.
ZFS on ZFS is only ok to do some tests.

I will be passing through a SATA controller for the data pools. My question was more about the virtual disk the OS is installed on.

 

[BobhWasatch]

When I create the VM using the wizard, and I assign the virtual disk to be stored on the mirrored ZFS pair in Proxmox, is this virtual disk ZFS? What I mean is does this create the ZFS on ZFS scenario?

It isn't formatted as ZFS, no. That depends on what the VM does with it.

 

[IroesStrongarm]

It isn't formatted as ZFS, no. That depends on what the VM does with it.

TrueNAS will install itself on the virtual disk as ZFS as that's the only option they allow. Is that an issue?

 

[BobhWasatch]

Well, it would be ZFS-on-ZFS would it not? Does that answer your question?

 

[IroesStrongarm]

Well, it would be ZFS-on-ZFS would it not? Does that answer your question?

This was the confirmation I was trying to get. I wasn't sure if perhaps I wasn't understanding correctly so wanted to ask those who understand would be more confident than me.