September 5, 20232 yr i have 64gb and most of the time it will be at 73% sometime it'll spike 90%. from what i've read, people use /dev/shm for transcoding to ram. i don't ever recall setting up this. when running df -h -t tmpfs i see that irs taking 32gb of ram is /dev/shm just something unraid create on its own? is the ram available for the system/dockers or is it completely reserved for /dev/shm ? if it is reserved, how do i make it available for the system since i do not transcode to ram
September 6, 20232 yr Author is it reserving half the ram ? if so, can i relocate this half back to system to be used ?
September 6, 20232 yr Community Expert It's not reserved, it will use it if you map anything there up to half installed RAM.
February 27, 20251 yr @JorgeB I dumb as a post! I like things explained to me like an 8 year old. Been trying to understand the difference in /tmp and /dev/shr. Would I be wrong in assuming that /tmp is for persistent data (until power off) while /dev/shr is temporary (being used)? I cannot not test currently because my server is finishing its backup from a recent (MB or CPU) crash on a 2 core Cpu... But when the new hardware shows up I would like to correct something's I did wrong. Plex transcoding would have more than enough room in 50% of 192GB of ram. Was planning on moving to Zfs but the price of harddrives convinced me not too. $200 CDN increase since October 2024 on 24TB Exos.
February 28, 20251 yr Community Expert I could be wrong, but I believe both are basically the same, except /dev/sdh is limited to half the installed RAM, /tmp can use it all
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