Just getting my feet wet. I have plenty of other uses for a Pi so if the NAS doesn’t work out that’s fine, I’ll get something else. Worst case I’m out $70-ish for the Raxda SATA hat. Something is seemingly not right with my config, I haven’t gotten the Pi to break a sweat yet. Thanks for your input though.
16GB of RAM. I figured it might be overkill but I went all-in anyways.
I don’t know what ARC is and my searches so far haven’t helped. The CPU usage is pretty low, on htop is rarely passes 10%.
Edit: I asked chatGPT what it means, this seems like exactly the setting I was hoping to find. I’ll check it out and post an update.
Edit2: I changed the ARC size to 8GB and it definitely seems to have gotten slower.
I guess the Radxa Penta SATA hat would be considered the controller.
I haven’t seen more than maybe 32MB/s. The transfers I’ve done are all on my local network from my desktop to my NAS which is plugged into my router. I have samba installed, my NAS shows up as a network drive just fine and I’ve just been dragging/dropping on my desktop GUI. Before setting up RAID, when I did this I would get around 200MB/s. The Pi has 16GB of RAM and I’m using less than 1.5GB while making a large transfer from my desktop to the NAS.
5x 8TB HDD at 5400rpm all hooked up to a Radxa Penta SATA hat.
I’ve got 5x 8TB HDD at 5400rpm
Added an edit to my post.
Ohh OK, yeah that would be tricky unless you’re an EE
Most slicers allow you to mirror parts very easily
Printing an enclosure now that will significantly improve the airflow
“sudo shutdown” gives you 60 seconds, “sudo shutdown now” does not, which is what I usually use. I’m thinking I could launch a script on startup that will check a pin every x seconds and run a shutdown command once it gets pulled low.
Printing the bracket for the drives in PLA now. I designed them to make minimal contact with the drives so I think they’ll be ok. Even in the rough draft setup the 140mm fan seems like overkill to keep them all cool. If the bracket warps I’ll reprint in something else. Polymaker recently released HT-PLA and HT-PLA-GF, which I’ve been eager to try.
I’ve got that covered. I got a filter for the big intake fan. Printing the first batch of enclosure parts now.
Nice. For the Pi5 running Pi OS, do you think using a GPIO pin to trigger a sudo shutdown command be graceful enough to prevent issues?
they could include a “mini UPS” to keep 12v/5v up long enough to shut down gracefully in a power loss scenario
That’s a fuckin great idea.
I’m in the same boat. Based on the things I’ve learned in the last hour or two, ZFS RAIDz1 is just newer and better. Someone told me that ZFS will help prevent bit rot, which is a concern for me, so I’m assuming ZFS RAIDz1 also does this, though I haven’t confirmed it yet. I’m designing my enclosure now and haven’t looked into that yet.
TIL. Looking into ZFS RAIDz1.
Good catch. I don’t have my USB-C cable coming from the buck convertor set up yet, waiting on some parts to arrive tomorrow. The USB-C power is currently coming from a separate power supply in this set up. Ultimately, there will be a single 12V barrel jack port to power the whole system.
People keep saying the Pi is CPU limited but it hasn’t gotten over 10% between all 4 cores while I’ve been transferring files. 16GB of RAM doesn’t seem very limited to me either. Thanks for the link!