caplam Posted May 28, 2020 Share Posted May 28, 2020 (edited) Hello to all, one of my 2 ssd of the cache pool starts to have errors so i'd like to have advice on the situation. Attached are the smart data of the ssd. It's a western digital blue ssd 500Gb. I threw it, brand new, in the server one year ago when i installed unraid. The ssd is sold for an endurance of 200TBW calculated according to jedec jesd219. But what does it mean ? Does it refer to nand writes (TLC or SLC) or host writes? I find completly crazy that my ssd has 731Tb SLC writes and 610 Tb host writes in one year. Edited May 28, 2020 by caplam Quote Link to comment
JorgeB Posted May 28, 2020 Share Posted May 28, 2020 I would keep it for now, monitor SMART, if those reported uncorrectable errors continue to increase it's probably a good idea to replace it. 43 minutes ago, caplam said: I find completly crazy that my ssd has 731Tb SLC writes and 610 Tb host writes in one year. Likely related to this: 1 Quote Link to comment
PSYCHOPATHiO Posted May 28, 2020 Share Posted May 28, 2020 (edited) That's one of the things I look at when purchasing SSDs the TBWs. my NVME has about 1800 TBW endurance. I need that as I host most of my important VMs & all of my dockers on IT, caching is a secondary concern. As a future purchase it's best to look at high endurance SSDs I guess. Edited May 28, 2020 by PSYCHOPATHiO Quote Link to comment
caplam Posted May 28, 2020 Author Share Posted May 28, 2020 my cache is not encrypted but i'll read the entire post. Grafana dashboard tells me 37MB/S write average during the last 6 monts Quote Link to comment
JorgeB Posted May 28, 2020 Share Posted May 28, 2020 11 minutes ago, caplam said: my cache is not encrypted Issue doesn't appear to be encryption related. Quote Link to comment
caplam Posted May 29, 2020 Author Share Posted May 29, 2020 i absolutly need to find a workaround. Since yesterday things are getting worse. Report uncorrected are growing on both ssds and i don't want to replace them and kill the new two. Before installing unraid i had aprroximately the same load on a hp N54l and i3 4330 both installed with proxmox. And i had no problem during 3 years. The dockers were in a debian vm. Quote Link to comment
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