Heh. I just scanned through that wiki link before I posted it. I felt it was a well rounded intro to ZFS.
Yes, there's definitely some marketing going on there. When I read, "Easy configuration and management with Proxmox VE GUI and CLI." ... Well I know a tech didn't write that.
There's factual errors (calling ZFS stripe/mirror configurations as RAID0 and 1), there and more like wishful thinking features (self-healing, etc. - the filesystem absolutely can go irrecoverable), even features advertised which PVE did not go on to support (e.g. ZFS encryption). But I take it with a pinch of salt, it was obviously written long ago.
But really, for an initial intro to ZFS, that page is pretty darn complete.
The valuable part for PVE user is probably the bootloader part.
Other than the fact that (as an intro doc) it skips over a bunch of details, what could you possibly object to there?
If someone comes from actual Linux, they do not even get the idea that ZFS is whole another animal, e.g. cannot rely on /etc/fstab, concepts of datasets, quotas, reservations, refreservations, snapshots, send/receive, etc.
I prefer to draw my information from authoritative sources, i.e. in this case OpenZFS.
Honestly, I was surprised at all the various considerations they _did_ address.
They made it their
favourite only choice, so they had to touch on everything a bit, to make it sounds like a wonder filesystem. If you come from a traditional filesystem, you get all the buzzwords, but no concepts.
I will take a look at the OpenZFS link, but I would not drop that for a person looking for an overview.
And the crusty oldies? Nah, that's not gonna help.
Listen to e.g. one talk of Bill Moore from a decade (or more) ago and you are much better equipped to start using that filesystem. You can pick up on e.g. DRAID easily, but if you do not even understand how even free space is reported, good luck with first troubleshooting awaiting you.
Heheh. Ya, we see that very differently. :]
Also completely missing are the list of all the known ZFS bugs, meanwhile Proxmox is very happy to refer to bugtrackers when it comes to e.g. not supporting other options. I pity everyone who starts with this guide as their main ZFS intro, they will come back asking here later, from someone who listened to the old farts.
Put some money behind it.