Hey!

Have been really stupid, and got a UGREEN NASync DXP4800 Pro with 2x 2TB M.2 nvme.
It's my first NAS system and i think it's clear that i did not do a lot of research.

I can't return the stuff since i purchased it in another country, still on the road now so haven't opened anything, but can i use the M.2 as storage with RAID1? Or can i use it as regular storage (no RAID) until i can purchase some Seagate IronWolf's? Would it be easy to transfer the data afterwards?

Thanks in advance for answering!

I am wondering if its worth going the custom dns / domain / reverse proxy rout? Or stick with ugreen photo app that need nothing and feels like a bit easier to setup?

I want to buy a NAS to store ~4TB of media and have them accessible on my workstation and phone (both capable of HEVC and HDR10). I am not interested in having 5+ users or a Docker container. Considering the compatibility list, price per TB and noise levels, my choice is between:

1. DXP2800 + 2x IronWolf Pro 12TB HDDs (helium-filled) for 1700 euros.
2. DH2300 + 2x Red Plus 6TB HDDs (air-filled) for 800 euros.

My only concern about the DH2300 is whether relying on the 32GB eMMC storage long-term will be an issue (i.e., I won't have NVMe slots as fallback) and that I essentially "max-out" from day 1 (I don't know if this will be an issue 2 years from now but I already have 10TB across NVMe SSDs).

One more thing: if I get the DXP2800, I consider having 2x 990 EVO Plus SSDs inside it. In terms of temps, will I have issues given that the NAS does not have heatsinks for the M2 slots or not?

Was sorting my Plex and adding my folders, and the Nas just froze and went off and restarted all of a sudden. It recognises the drive but everything was not installed on it no more.

Every time tried to format it was a error making storage pool or something.

I have a DXP 8800 Pro that I was using in Australia with no issues. I had 4 x 16tb HDDs in RAID 5 but due to the size of the NAS, I decided to leave it in Australia and buy a smaller one when I arrived in Canada. On arriving in Canada, I bought a DXP 4800 Pro and noted that one hard drive was not being recognised when I attempted to rebuild the RAID. I bought a new hard drive which is recognised, but I get an error when I attempt to rebuild the RAID as it only recognises the 3 original/old drives in the original RAID I built.

Does anyone have any suggestions on how I can rebuild the RAID without losing all my data? My understanding is that you can replace one drive and rebuild the RAID without losing data, but I'm wondering if this has been complicated by switching to a new NAS

Thank you in advance 🙂

So recently my 4 month old NAS started crashing while playing Jellyfin movies. It will play the movie and then after a while everything becomes unresponsive. The movie will no longer load, jellyfin will stop responding and the ugreen webinterface is no longer reachable. The only way to restart the NAS is by plugging it out and back in again.

I have tried with and without Hardware Accel, I have enabled Transcode Throttling, set proper CPU and RAM limits and updated Docker. I am running Jellyfin 10.11.10 on a Ugreen DXP4000+.

Anyone got any ideas?

do i have to wipe my first drive before making the second one a backup? i have some media on Drive 1, when my second HDD gets delivered can i go ahead and configure RAID to essentially make it a carbon copy of Drive 1?

or do both drives have to be empty to configure RAID

I'm looking at using a Ugreen for temporary data storage at a remote office we have. I wanted to make sure it's going to do what i need.

Looking at the Ugreen DXP4800 plus with a couple terabyte hard drives in Raid1. I want to set up SQL express in a docker. It will be storing data before it is synced across to our corporate server.

Looking through documentation, it looks like the Ugreen will be able to handle that but I've never used a docker on a NAS device like this before so I'm just wondering what experience others have had.

I'm a complete newbie to all this but I'm trying to learn. I've read everywhere that Portainer is supposed to make things easier but so far it's been the opposite.

I got a Ugreen NAS with Docker installed on it. I used Portainer to deploy Immich. It says the stack was deployed successfully, the 4 services are running, but loading the Immich webpage does not work at all. If I delete the stack and deploy again through Docker using the same yml and env files, then everything works and I'm able to access the Immich webpage.

I can call it a day and move on but I'm curious and would like to understand why it doesn't work through Portainer if anyone can ELI5.

Posting this in case others hit the same issue — confirmed as a real UGOS bug by UGREEN support (R&D acknowledged it, fix pending, no ETA).

Symptoms (often appear together, sometimes just one): Web login fails with "Necessary device information missing" Docker page shows "Failed to operate" even though containers are still running fine System Update check fails with "Failed to check"

**Root cause: ** internal UGOS services (gateway_serv, docker_serv, storage_serv, ctl_serv, app_serv) communicate over local gRPC sockets/certs under /tmp/.cache/. After certain restarts (or just over time on some units), these services lose sync with each other — sockets/certs go missing, and services can't reconnect until the whole stack is restarted together. It's a service-discovery/watchdog issue, not actual data loss or drive failure — containers/data stay intact throughout.

I've reported this already and it should be fixed soonish Just curious if anyone of you experienced this weird behavior as well?

Only temporary fix is rebooting the NAS more frequently.

I attach some images to show the unaccessible WebGUI and the error messages in the Android App.

So I’ve updated my UGOS PRO to the last version today and after that my matter-server container stopped working correctly. So my matter devices in home assistant… It now says in the logs

2026-08-17 22:49:26.291 (Dummy-2) CHIP_ERROR [chip.native.DIS] Failed to advertise records: src/lib/dnssd/minimal_mdns/Server.cpp:344: CHIP Error 0x00000046: No endpoint was available to send the message

2026-08-17 22:49:52.780 (Dummy-2) CHIP_ERROR [chip.native.EM] <<5 [E:23999i with Node: <0000000000000000, 0> S:0 M:157393929] (U) Msg Retransmission to 0:0000000000000000 failure (max retries:4)

I couldn’t manage to get it to work again properly. If anyone had any solutions I would really appreciate it.

Hi,

I am desperately trying to get the remote machine learning to work. I followed the steps to create the docker container and stuff. Generally thats working. But when I try to go to the machine learning settings to add the URL I just get this:

https://preview.redd.it/hea3g92rmzjh1.png?width=896&format=png&auto=webp&s=a39fdd18154cba8a76efb463b527dabc1499b521

Any ideas what I am doing wrong?

I use the basic docker compose file together with the file for hwacceleration, just with the nvidia specifics:

name: immich_remote_ml

services:
  immich-machine-learning:
    container_name: immich_machine_learning
    # For hardware acceleration, add one of -[armnn, cuda, rocm, openvino, rknn] to the image tag.
    # Example tag: ${IMMICH_VERSION:-release}-cuda
    image: ghcr.io/immich-app/immich-machine-learning:${IMMICH_VERSION:-release}-cuda
    extends:
       file: hwaccel.ml.yml
       service: cuda # set to one of [armnn, cuda, rocm, openvino, openvino-wsl, rknn] for accelerated inference - use the `-wsl` version for WSL2 where applicable
    volumes:
      - model-cache:/cache
    restart: always
    ports:
      - 3003:3003

volumes:
  model-cache:

is the vault app only available to the admin level? is there any way i can make it appear for users?

I’m running a UGREEN DXP4800 Plus with TrueNAS SCALE 25.04.2.6 since day 1 (6m ago). I’m trying to determine whether this is expected behavior on TrueNAS or if I have a hardware/firmware issue.

Symptoms

• CPU package regularly reaches 95-100°C.
• TrueNAS dashboard sometimes reports 106-110°C.
• lm-sensors reports up to 100°C (TjMax), so the high temperatures are real, although the dashboard seems to overshoot slightly.
• Average CPU load is usually only 20-30%.
• During stress tests it immediately climbs to ~100°C.

Example:

Package id 0: +100°C
Core 0:       +100°C
Other cores:   90-93°C

What I’ve already checked

• Fan is spinning.
• CPU is not obviously throttling (still boosting above 4 GHz).
• No thermal alarms reported by lm-sensors.
• TrueNAS exposes no PWM or fan control.
• No /sys/class/hwmon/*/pwm*
• No /sys/class/hwmon/*/fan*
• No IPMI/BMC.
• External room fan:
  • Blowing into the rear exhaust actually made temperatures worse.
  • Removing the external fan lowered temperatures slightly.
  • Front airflow helped a little, but the CPU still reaches ~100°C.

Environment

• Hot room (summer).
• NAS is normally inside a cabinet/closet, but I also tested it outside with more airflow.
• Changing the environment only changes temperatures by a few degrees.

My questions

1. Is this normal for a DXP4800 Plus running TrueNAS, but not UGOS?
2. Does UGOS control the fan/embedded controller, while TrueNAS leaves it on a conservative default curve?
3. Has anyone managed to control the CPU fan under TrueNAS?
4. Has updating the BIOS helped?
5. Did anyone fix similar temperatures by:
   • changing BIOS fan settings,
   • repasting the CPU,
   • or reseating the heatsink?

I’m mainly trying to understand whether this is expected with TrueNAS on this hardware, or whether I should open a warranty claim.

Thanks!