March 24, 20251 yr So i'm the tech support for my father-in-law and he is getting old and crap at telling me when things need fixing. Unraid box "wasn't working" for almost a year and he just told me now! WTF dude? Anyway... The symptoms from him were "I'd turn box on, and then about a minute later it would shut itself off". Turned out the bracket holding the cpu fan broke and cpu fan was disconnected from cpu = too warm and shutdown in ~1-2 min after power on. Since this happened for 6-12 months I'm SURE there are probably some disc parity errors and maybe other things? We'll see. I'm currently running a parity check on 4TB system (1 4TB data disc and 1 4TB parity drive). However I looked in syslogs and scrolled just to look at any "red" items. Next to a few red items (unable to write to disk1) is a yellow warning "Rootfs is getting full (currently 76% used)". 1) What does this mean? 2) How to fix/clean/empty whatever is causing this? 3) Any other obvious problems that I may encounter in the coming months? Thank you for your help deathstar-syslog-20250324-2111.zip
March 25, 20251 yr Author I thought for sure there would be parity errors with all the on/off cycles. Parity came back normal! Should I be worried about the "76% used"? What is this by the way? Attached is diagnostics AFTER normal power up and parity check complete. Thank you for inputs. deathstar-diagnostics-20250325-1543.zip
March 25, 20251 yr Community Expert To be honest I am surprised that more problems are not being encountered as it appears the system has less than 2GB of RAM. Unraid release sizes have grown as functionality has been added and the minimum recommended RAM is now 4GB. With your limited RAM you will find certain functions like an OS upgrade via the GUI is likely to fail.
March 25, 20251 yr Community Expert Solution 4 hours ago, skyking376 said: What is this by the way? rootfs is the RAM reserved for the OS files. The Unraid OS is unpacked from archives on the flash drive into RAM, and the OS runs completely in RAM. Think of it as firmware. If you fill up rootfs, the OS has no space to work in. The actual amount you have used is not all that unusual, but for most users that would be only a few percent of their RAM.
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