OPNSense VM script - using UFS and not ZFS for snapshots

[emsofo]

Greetings - The OPNSense script is nice, but only sets up the VM with UFS - so system snapshots don't work ?!? Would be great to allow also ZFS filesystem which allows for snapshots https://docs.opnsense.org/manual/snapshots.html Thanks in advance!

[wommy]

if i remember correctly,
zfs on zfs has issues
so i think UFS is the better choice

wouldnt it be better to snapshot on PVE?
or run PBS?

[jwgn]

I'm running OPNSense with ZFS on a ZFS Proxmox. No issues here.

[emsofo]

I can also confirm that I have been running OPNSense for almost 2 years now under Proxmox - and since OPNSense has offered snapshots, I've been using a single ZFS partition under the VM - works just fine (host is also running ZFS mirror) - no issues running 24/7

[emsofo]

My suggestion is the script should allow the user to decide which filesystem (UFS or ZFS) during install (advanced settings) - you can leave UFS as default ;-)

[wommy]

https://discourse.practicalzfs.com/t/hosting-nas-on-proxmox/1285

the highlighted reply is jim salter
the guy who wrote the arstechnica article on zfs and sanoid

https://www.reddit.com/r/zfs/comments/x0tjrk/nested_zfs_3_levels_deep_suggestions_appreciated/

write/read amplification
double arc caching
performance n drive life take the hit

convenience script should provide the easy path for newer users
power users can always do the manual install