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System not using "Useable Ram" leading to file transfer error/fail

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Hello!

 

I'm new to unraid (only used terramaster nas software in the past) so I apologize in advance if this is pretty basic stuff!

 

Yesterday I installed unraid (Version: 6.12.4) on my terramaster F2-221 (2-bay, Intel J3355 2.0ghz, 2gb ram) and added an extra 8gb stick of ram (10gb total). I put one drive (12TB) as parity and one 12TB as the array.

 

I installed 2 docker containers: Omada controller and Plex Media Server. No cache, installed on mnt/user/appdata.

 

Someone was watching a plex stream in my house as I was transferring ~700gb to the array from my networked windows PC. About 600gb into the transfer I got an error stating "not enough memory" and the file transfer stopped and I had to "skip all" the rest of the files (forgot to screenshot the exact error). I did a ~1TB transfer overnight with no issues, so I'm assuming it has to do with the plex stream running.

 

I had my server dashboard open and ram usage was 27%. I think I only have ~2tb/12tb on it right now so lots of storage space left.

 

Looking at my dashboard I'm wondering if the system can only access 2gb of the 10? It says "System - Memory: 2 GiB", and below it usable size 9.4GB. It never seems to go above 27% usage though, so that's why I think the system is not able to access the full 10gb and that's what led to the error.

 

mcelog errors around the time the transfer are attached.

 

I have Plex hostpath 2: as /tmp so plex uses the ram to transcode, not sure if that matters.

unraid memory.png

unraid error.png

spire-diagnostics-20231115-1255.zip

Edited by td123
version number added

Solved by JorgeB

  • Community Expert

It's not the RAM, it's using 9.4GB.

  • Author

Thank you! Something is definitely going wrong. I ended up installing the fix common problems tool and a machine check event error detected hardware errors and is asking me to post here with my diagnostics for assistance. Any help is appreciated, thank you!

  • Community Expert

You can post them, but not always clear what the hardware problem is just by looking at the diags.

  • Author

I might be doing this wrong - just running diagnostics under tools and downloading that. If it's a different one I'm supposed to be running please let me know.

spire-diagnostics-20231116-0931.zip

  • Community Expert
  • Solution
Nov 15 19:38:19 Spire mcelog: CPU 0 on socket 0 received unknown error
Nov 15 19:38:19 Spire mcelog: Location: CPU 0 on socket 0

Possibly a CPU problem.

  • Author

Hm. My HDD are getting pretty hot ~60 degrees without an external floor fan pointing at the nas, so I wonder if the CPU is overheating under long load times. I was wondering if I could get away with this old Terramaster, looks like probably not. I have a full size PC, will just move everything over to that and ditch the little nas box. Ty.

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