March 28, 20233 yr 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.
March 28, 20233 yr Community Expert 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.
March 28, 20233 yr Author 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.
March 28, 20233 yr Community Expert 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.
March 28, 20233 yr Community Expert Solution https://forums.unraid.net/bug-reports/stable-releases/6103-samsung-980-temp-warning-r2007/?do=findComment&comment=20180
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