October 28, 2025Oct 28 One of my Unraid servers has an issue. The array becomes unresponsive if parity check, mover or writes go to the array. The system will, in fact, become more or less unresponsive if any writes occur. Reading files from the array via SMB or Docker containers such as Duplicacy backup or Plex are fine. The ZFS cache pools seem to work fine. I ran short SMART tests on each drive as successful. I am in the process of doing extended SMART tests but this will take time with 13 total hard drives. I did try the Live Memory Tester plugin to create a 100GB test of a total of 128GB RAM with no issue. I will run memtest from the USB Flash after all the hard drives are tested.I would be grateful if the community would give me any further suggestions. marvel5-diagnostics-20251028-1642.zip
October 28, 2025Oct 28 Community Expert next time you have consistent writes to the array, open the console/terminal and type in top look at the wa indicator and see what it says, the higher the value the slower the system will feel like.If it's a low number then there could be other issues. (not sure what though) Edited October 28, 2025Oct 28 by MowMdown
November 7, 2025Nov 7 Author I reached out to Unraid support. They were super helpful and saw errors that looked like hardware but could not identify the culprit. After BIOS updates and testing RAM, Intel 13th gen CPU, and hard drives I could not find an error. One of my hard drives dropped when I temporarily removed my HBA from the system. I changed out the cable from my HBA to a bank of SATA hard drives. No luck but I was able to move a small amount of data. I finally found the real issue regarding my array. One of the three RackChoice Internal Hard Drive Enclosures created errors to all connected hard drives. Here are a couple things I have learned.Rufus will make a Windows boot USB but will not make USB bootable Windows. Hasleo WinToUSB will do this. The software is free if all you need is Windows Home EditionIntel has a tool to test their processors. The Intel Processor Diagnostic Tool only works under Windows. If you want this to run from a USB Flash drive see Hasleo WinToUSBMemtest is built into some BIOS these days. It is super handy. I used it when I bought the hardware and almost forgot it existed.
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