On 1/22/22 02:23, Sven Hugi wrote: > Hello Martin > > I just don't get it, why i get the same problems, as reported with the > 850 on the t5... > I mean it's the 2nd t5 i used and i used it on 4 different devices (+ > on the school computer). > The t5 i currently have, runs really slow on linux and more or less > without problem on windows, the one i had before behaved really > similar, till it started to corrupt vm's and then also slow down on > windows... > Do you have an idea, what that could be?, or does it sound like i just > got 2 defective disks? It may be a drive firmware bug. Note that this article: https://www.tomshardware.com/reviews/samsung-t5-portable-ssd,5163-3.html mentions a similar performance problems with older versions of the T5 that do not have TRIM support. It is mentioned that newer versions have TRIM support though. So it may be worthwhile to check if a firmware update is available for your drive. > > Best regards > > Sven Hugi > > Am Fr., 21. Jan. 2022 um 03:15 Uhr schrieb Martin K. Petersen > <martin.petersen@xxxxxxxxxx>: >> >> >> Sven, >> >>> -> sudo sg_readcap -l sda >>> Read Capacity results: >>> Protection: prot_en=0, p_type=0, p_i_exponent=0 >>> Logical block provisioning: lbpme=0, lbprz=0 >>> Last LBA=976773167 (0x3a38602f), Number of logical blocks=976773168 >>> Logical block length=512 bytes >> >>> lbpme=0... >>> so, i guess it's not because of trim... >> >> Correct, Linux wouldn't be sending trims to that drive. >> >> -- >> Martin K. Petersen Oracle Linux Engineering > > > -- Damien Le Moal Western Digital Research
