cdoublejj Posted October 26, 2020 Share Posted October 26, 2020 (edited) is it possible to diagnose in such a way to find out if a controller(s) is causing a bottle neck? EDIT maybe pre clear is hard on drives or certain types of SSDs??? you'd think all of the 2TB SSDs would be way faster than the 6TB HDDs? Edited October 26, 2020 by cdoublejj Quote Link to comment
JorgeB Posted October 26, 2020 Share Posted October 26, 2020 You can use the diskspeed docker. 1 Quote Link to comment
JorgeB Posted October 26, 2020 Share Posted October 26, 2020 Also, you shouldn't preclear SSDs. 1 Quote Link to comment
cdoublejj Posted October 26, 2020 Author Share Posted October 26, 2020 1 hour ago, JorgeB said: Also, you shouldn't preclear SSDs. oh? aside from taking off life span might that be why i saw an error and ran again the drive was fine? is there some info/reasoning behind this? like defragging SSDs back in the day would scramble stuff or cause excessive wear? Quote Link to comment
JorgeB Posted October 26, 2020 Share Posted October 26, 2020 9 minutes ago, cdoublejj said: aside from taking off life span Because of this, also very usual for SSDs to have pending sectors or "surface" errors, they usually work or don't work. 1 Quote Link to comment
cdoublejj Posted October 26, 2020 Author Share Posted October 26, 2020 27 minutes ago, JorgeB said: Because of this, also very usual for SSDs to have pending sectors or "surface" errors, they usually work or don't work. good to know! is the docker the only way to test drives? i've disabled docker to improve reliability and drop resource usage. Quote Link to comment
JorgeB Posted October 26, 2020 Share Posted October 26, 2020 3 minutes ago, cdoublejj said: is the docker the only way to test drives? It's the esiest way, you can also assign them to the array, without parity and do a read check. Quote Link to comment
cdoublejj Posted October 26, 2020 Author Share Posted October 26, 2020 42 minutes ago, JorgeB said: It's the esiest way, you can also assign them to the array, without parity and do a read check. also does 1118 relocated sectors sound right for an SSD or a bad SSD needing replaced? (or would that have to do with having ran a pre clear on it?) Quote Link to comment
JorgeB Posted October 26, 2020 Share Posted October 26, 2020 Never a good sign, but might be OK for now, assuming it's not new. Quote Link to comment
cdoublejj Posted October 26, 2020 Author Share Posted October 26, 2020 is the raw value the same as the actual amount of re allocated sectors? Quote Link to comment
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