Storage

[Nollimox]

I noticed in some video guides that most folks use SSD's for storage. I had already bought three good used performance 3.5 hard drives, each 4TB for a total of $80 plus tax...will that be a problem? At this point, I am not sure what I'll store apart from backups, etc. The drive that Proxmox is installed on is a 250GB PCIe-M2.NVME and my plan was to install the two VM and two or three Docker containers there as well. The 3.5 drives are used solely for storage and the choice was purely cost-driven on my first Proxmox build.

 

[Dunuin]

For cold storage or PVE itself, CMR HDDs are fine. For storing VMs/LXCs you better use SSDs as IOPS performance is needed and HDDs are really terrible at that.
And also keep in mind that SSDs are not all fast. There are very big differences in performance and durability when comparing consumer vs enterprise SSDs and QLC vs TLC vs MLC vs SLC SSDs. A bad SSD can be slower than good HDD.

 

[Nollimox]

For cold storage or PVE itself, CMR HDDs are fine. For storing VMs/LXCs you better use SSDs as IOPS performance is needed and HDDs are really terrible at that.
And also keep in mind that SSDs are not all fast. There are very big differences in performance and durability when comparing consumer vs enterprise SSDs and QLC vs TLC vs MLC vs SLC SSDs. A bad SSD can be slower than good HDD.

Thank you.