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I believe I finally discovered the problem, if anyone comes across this thread. The Cache Dirs plugin logs had filled the /var/log/ allocation of 128MB of RAM. Rc.Nginx crashes and Web UI and SSH become inaccessible. Fix is to turn off logging for Cache Dirs plugin. I will update if I find something else, but I'm hopeful this is will be the last of it. As a fix i have been using a userscript that tries to start Rc.Nginx if it crashes # Checks if the actual nginx process is active. if pgrep -x "nginx" > /dev/null; then # Nginx is running normally exit 0 else # Nginx is missing, attempt restart echo "Nginx process not found! Restarting at $(date)" /etc/rc.d/rc.nginx start fi

Thank you JorgeB. I saw that too. Any idea why the Dockers and SSH were accessible afterwards but not the shares or Unraid GUI?

Hello, My shares became unresponsive (checked on two windows machines) and I could not access the GUI. Dockers and SSH were ok. A reboot fixed the issue. I pulled the diagnostics via SSH before the reboot - attached. I've been trying to locate the cause. Any pointers appreciated. Thanks server-diagnostics-20250223-1420.zip

Ok. Thanks for the fast reply

Hello, One of my pool HDDs was unassigned there was a notification something like "unallocated sector 87". I rebooted (I now read I should have captured the log beforehand) and now the disk is an unassigned device with size of only 4.14GB. I replaced the sata cable as recommended in many forum posts. Is my HDD dead? Diagnostics attached. Disk ST3000VN000_W6A1XXKW server-diagnostics-20240729-2214.zip

Another parity check had 0 errors. Thank you!

Thank you JorgeB. 6 iterations of memtest completed ok. I replaced the sata controller with one on your recommended list. Parity check returned 55 errors. Diagnostic attached. Parity check finished at Wed 06 Jul 2022 07:43:07 AM local time Any further ideas? server-diagnostics-20220706-1102.zip

Hello, For a few months now I have consistently had parity check errors, I think the numbers have been about the same ~1500 errors. I've read some posts and tried a couple of parity checks read only and then write corrected. Same results. Yes I have had the occasional unclean shutdown from power loss. Maybe twice in the last year. See attached my diagnostics. Last parity check finished at 02.12am on 25 June. I appreciate your expert opinions! Thanks in advance. server-diagnostics-20220625-0921.zip