Post AKFYZ9TYO5WYMBRC0u by tthbaltazar@chaos.social
 (DIR) More posts by tthbaltazar@chaos.social
 (DIR) Post #AKFXMrdulR0VcUrQgq by shibao@misskey.bubbletea.dev
       2022-06-07T15:39:20.946Z
       
       2 likes, 0 repeats
       
       ah yesi enjoy when hardware manufacturers of ssds lie about the device's true block size causing zfs to perform write amplification
       
 (DIR) Post #AKFXWR7WEG2QG2GwfA by shibao@misskey.bubbletea.dev
       2022-06-07T15:41:05.129Z
       
       0 likes, 0 repeats
       
       i probably should've checked the tbw sooner lel
       
 (DIR) Post #AKFXZMswQoWDzWqsD2 by tthbaltazar@chaos.social
       2022-06-07T15:41:00Z
       
       0 likes, 0 repeats
       
       @shibao how does that lead to write amplification?
       
 (DIR) Post #AKFXZNGh0VW9BBxqEK by shibao@misskey.bubbletea.dev
       2022-06-07T15:41:35.900Z
       
       1 likes, 1 repeats
       
       @tthbaltazar@chaos.social samsung doesn't actually tell you what the real block size is, i took the 512 byte block size for face value, i think internally it may be 4k or 8k
       
 (DIR) Post #AKFXgKl4jmuhQEUgvQ by helene@p.helene.moe
       2022-06-07T15:42:51.560283Z
       
       0 likes, 0 repeats
       
       @shibao "controller-less" NVMe drives clearly have an advantage on that point
       
 (DIR) Post #AKFXnJHGdpLorAsV4y by shibao@misskey.bubbletea.dev
       2022-06-07T15:44:08.262Z
       
       2 likes, 0 repeats
       
       @helene@p.helene.moe my ssds have written over 60 terabytes with <5k hour power on time ​:upsidedowncry:​ ​:upsidedowncry:​ ​:upsidedowncry:​
       
 (DIR) Post #AKFY5A9lIA6hmSsdZQ by shibao@misskey.bubbletea.dev
       2022-06-07T15:47:20.161Z
       
       1 likes, 0 repeats
       
       @helene@p.helene.moe basically already used a 10th of it's lifespanwill see if removing the write amplification will improve things
       
 (DIR) Post #AKFY7ZdhWBaZOT29QG by helene@p.helene.moe
       2022-06-07T15:47:47.997892Z
       
       0 likes, 0 repeats
       
       @shibao that's a bit rough!! but it could be worse, really :ablobcatknitsweats: i hope it'll help with things!!
       
 (DIR) Post #AKFYP5HF8uuIRIsYC0 by shibao@misskey.bubbletea.dev
       2022-06-07T15:50:57.526Z
       
       1 likes, 0 repeats
       
       @helene@p.helene.moe huh my system ssd is already over 5 years power on time leli guess i will be buying drives by the end of this year again or something
       
 (DIR) Post #AKFYZ9TYO5WYMBRC0u by tthbaltazar@chaos.social
       2022-06-07T15:42:27Z
       
       0 likes, 0 repeats
       
       @shibao I think most ssds are 16ksetting a bigger block size can't hurt, I always do at least 4k
       
 (DIR) Post #AKFYZ9pt33O9TRt1pA by tthbaltazar@chaos.social
       2022-06-07T15:46:38Z
       
       0 likes, 0 repeats
       
       @shibao but how does having a smaller block size lead to write amplification?
       
 (DIR) Post #AKFYZAKjCO3h16Jetc by shibao@misskey.bubbletea.dev
       2022-06-07T15:52:45.146Z
       
       0 likes, 0 repeats
       
       @tthbaltazar@chaos.social because it'll rewrite the same sector as many times by what the block size it advertises says, so if the block size is actually 4k, then it'll rewrite 4k's worth of data 4096/512=8x over
       
 (DIR) Post #AKFYnBE2g83Tq0s5ce by helene@p.helene.moe
       2022-06-07T15:55:19.185391Z
       
       0 likes, 0 repeats
       
       @shibao I should check my SSDs too, they probably suffer from very similar issues... :ablobcatknitsweats:
       
 (DIR) Post #AKFcj4QGQfStOhsrUe by lucifargundam@qoto.org
       2022-06-07T16:39:23Z
       
       0 likes, 0 repeats
       
       @shibao It's not just an SSD thing- it's a general pc hardware thing. I know this from professional experience.