Nevermind, I am an idiot. You’re comment gave me thought and so I checked my testing procedure again. Turns out that, completly by accident, everytime I copied files to the LVM-based NAS, I used the SSD on my PC as the source. In contrast, everytime I copied to the ZFS-based NAS, I used my hard driver as the source. I did that about 10 times. Everything is fine now. THANKS!

Both machines are easily capable of reaching around 2.2Gbps. I can’t reach full 2.5Gbps speed even with Iperf. I tried some tuning but that didn’t help, so its fine for now. I used iperf3 -c xxx.xxx.xxx.xxx, nothing else.

The slowdown MUST be related to ZFS, since LVM as a storage base can reach the “full” 2.2Gbps when used as a smb share.

Its videos, pictures, music and other data as well. I’ll try playing around with compression today, see if disabeling helps at all. The CPU has 8C/16T and the container 2C/4T.

The disk is owned by to PVE host and then given to the container (not a VM) as a mount point. I could use PCIe passthrough, sure, but using a container seems to be the more efficient way.

I meant mega byte (I hope that’s correct I always mix them up). I transferred large videos files, both when the file system was zfs or lvm, yet different transfer speeds. The files were between 500mb to 1.5gb in size

I don’t think it’s the CPU as I am able to reach max speed, just not using ZFS…

Good point. I used fio with different block sizes:

fio --ioengine=libaio --direct=1 --sync=1 --rw=read --bs=4K --numjobs=1 --iodepth=1 --runtime=60 --time_based --name seq_read --filename=/dev/sda

4K = IOPS=41.7k, BW=163MiB/s (171MB/s)
8K = IOPS=31.1k, BW=243MiB/s (254MB/s)
IOPS=13.2k, BW=411MiB/s (431MB/s)
512K = IOPS=809, BW=405MiB/s (424MB/s)
1M = IOPS=454, BW=455MiB/s (477MB/s)

I’m gonna be honest though, I have no idea what to make of these values. Seemingly, the drive is capable of maxing out my network. The CPU shouldn’t be the problem, it’s a i7 10700.

Tubearchivist works great for me. Downloader, database and player, all in one. Even integration with jellyfin is possible, not sure about plex though.

Ah, thank you for clearing that up, much appreciated!

Excellent, I’ll probably do that then. If I think about it, only one container needs write access so I should be good to go. User/permissions will be the same, since it’s docker and I have one user for it. Awesome!

Ah, very good to know. Then it makes sense to use this approach. Now I only need to figure out, whether I can give my NAS access drives of other VMs, as I might want to download a copy of that data easily. I guess here might be a problem with permissions and file lock, but I’m not sure. I’ll look into this option, thanks!

That makes sense, especially when the drives are equally old. Thanks for explaining it!

I’m curious. Where is the problem with small drives for RAID5? Too many writes for such a small drive?

That sounds very interesting and I’ll definetly look into it. Thank you!

It’s good to know, that it works. I will probably play around for a bit once I get my hardware. Thanks for letting me know!

That’s also something I was considering briefly. While I’m waiting for hardware, I did basically that or at least I think I did. Although, I didn’t use a bind mount, because I only have one drive for testing, so I created a virtual disk.

What exactly do you mean with bind mount? Mount the data set into the container? I didn’t even know, that this was possible. And what is a data set? Sorry, I’m quite new to all this. Thanks!

Yeah, that is the hardest part. I don’t exactly now, how much space will be needed for each use case. But in the end, I can just copy all my data somewhere else, delete and resize to accomodate needs.

I did that when I started working with Linux. I thought / meant the current directory, boy was I wrong!

I’m currently setting up proxmox just for that. Since I’m still quite new to self hosting, I fuck up from time to time. Deleted my root file system once. Updated Nginx proxy manager and took down my services with it. I once fucked up iptables, scary stuff.

In the future, it’ll be one click and everything works again. It’s so easy on novices, once you get everything going.

It’s pretty similar, but I combined those two guides and that worked pretty well.