[SOLVED] Additional redundancy/snapshots on a single disk

[Popsicle]

Hi

I'm installing Proxmox on a 128GB SSD but I only require 32GB and want to use some of the additional space for redundancy in case of data corruption or configuration error.

I was hoping that I can use ZFS's Snapshots, Copy-on-write clone or RAIDZ-1 to accomplish some of this or even LVM.
It should require as little human intervention as possible.

What would be my best option in this regard without a significant system impact?

thx

 

[aaron]

What do you want to protect from? With ZFS on a single drive you can set the number of copies higher. This can help if a bit flips.
But if the drive fails, you have nothing.

During installation you can tell the installer to not use the full disk. See https://pve.proxmox.com/pve-docs/pve-admin-guide.html#advanced_lvm_options

 

[Popsicle]

Thanks

I set the copies=2 in the ZFS configuration to protect against bit flips and data rot.
I am also making snapshots of my VMs after any configuration changes as restore points.

Together they sould provide sufficient redundancy for my requirements.

 

[aaron]

I set the copies=2 in the ZFS configuration to protect against bit flips and data rot.

One last thing, AFAIR ZFS will honor such settings only for newly written data after the settings has been applied.