[TUTORIAL] If you are new to PVE, read this first; it might assist you with choices as you start your journey

For me an "external" documentation site seems to be useful. The official https://pve.proxmox.com/pve-docs/pve-admin-guide.html is a little bit "dry" sometimes. That one is very good as a reference guide but it does fail to explain some basics in an understandable way for a beginner.

Nearly all of @Dunuin hints I need to agree to. Any recommendation should always bring a user to the save side: it is better to have enterprise grade hardware and redundancy. (But I would prefer ZFS also on a single disk - for its data integrity check and bitrot detection.)

The "safe side" includes hardware usually used in the Enterprise, not at home. Of course your https://portal.habitats.tech/Proxmox+VE+(PVE)/2.+PVE+7.x+-+Hardware does list some valid and interesting devices.

Just one detail popped up to me: as a recommendation you should at least mention ECC. In fact the full text search gives zero hits for this.

(FTR: my own homelab is only ~33% ECC - for the usual reasons.)


Basically I just wanted to give a little bit positive feedback :)
 
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The power-loss protection of an enterprise SSD is by the way not just for data integrity in case of a power failure. Without it, the SSD can't cache sync writes in DRAM cache, as DRAM is volatile and write-cached data would be lost. With a power-loss protection it can run for some seconds on the supercaps and switch to panic mode, quickly dumping all the data from volatile DRAM cache to non-volatile SLC cache before the power runs out.

Have a look at the Proxmox ZFS benchmark paper for 4K sync write performance and you will see how terrible sync write performance without power-loss protection is:
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So IOPS performance dropping from 17485 down to 254 (both MLC SATA) just because Power-loss Protection (PLP) is missing, is a very big hit.
 
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