azche24 Posted March 28, 2023 Share Posted March 28, 2023 Hi, every time i'm doing a backup job via rsync like \\NAS02\Media -> \\backup-nas\backup (where NAS02 is a unRAID share with cache and "backup-nas" is a remote share mounted in unRAID via SMB) my cache drives (2x1 TB NVME-SSDs) are overheating several times. I'm speaking of large (> 4 GB) backup jobs running for hours. This is coming from log files or what? How can i avoid this? Rsync is started with "user-script" plugin, but that should not be the concern. Quote Link to comment
JorgeB Posted March 28, 2023 Share Posted March 28, 2023 It's normal for NVMe devices to get hot after sustained writes, max temp is usually around 70C, where they can start throttling, you can add heat-sinks if they don't have one to decrease temps. Quote Link to comment
azche24 Posted March 28, 2023 Author Share Posted March 28, 2023 These are reads (if so) not writes. As far as i know, unRAID does not do "read caching". These drives have heat-sinks and the are getting "one by one" up to 84 C (and then throttling). Does not seem "normal" to me. Quote Link to comment
JorgeB Posted March 28, 2023 Share Posted March 28, 2023 Are these Samsung 980 devices? Quote Link to comment
itimpi Posted March 28, 2023 Share Posted March 28, 2023 1 minute ago, azche24 said: These are reads (if so) not writes. As far as i know, unRAID does not do "read caching". These drives have heat-sinks and the are getting "one by one" up to 84 C (and then throttling). Does not seem "normal" to me. Are these SAMSUNG SSDs? They have a known issues where they can erroneously report a temperature of exactly 84C. Quote Link to comment
azche24 Posted March 28, 2023 Author Share Posted March 28, 2023 Yes, both are Samsung 980 SSDs. Quote Link to comment
Solution JorgeB Posted March 28, 2023 Solution Share Posted March 28, 2023 https://forums.unraid.net/bug-reports/stable-releases/6103-samsung-980-temp-warning-r2007/?do=findComment&comment=20180 1 Quote Link to comment
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