August 7, 20232 yr Hi! I've got 2 new drives of higher capacity. One to replace the parity drive and one to get some more storage (Seagate Exos X16 ST16000NM001G). Both drives have been put in HDD enclosure that takes 3 drives and it's mounted in 2 5.25" bays. I've always noticed that the drives I had there were running a bit hotter than other drives, but never exceeded 45°C. Also these drives were connected to LSI SAS2008. I've noticed that after maybe 15 minutes pre-read speed dropped from 280MB/s to 66MB/s. I left it for a bit, thinking that it will go back, but after 5h I came back and both were still at around 66MB/s and at 47°C and 49°C! I've stopped the pre-clear and changed the location of the drives. With the location I also changed SATA cables and now those 2 drives are connected via motherboard ports. It's been 1.5h and the speed is around 275MB/s and temp. 38°C. Is this normal that drives slow down when they get hot? Also I read that some people put small fans on the radiator of the LSI SAS2008. I don't have one and it was very hot to touch. Could the LSI SAS2008 also slow down because of high temperature? I've ordered a small 40mm fan for it already. So bottom line is: everything is fine now, but with time as I replace my 2-4TB drives with 16TB drives I want to avoid any mistakes. Any input is welcome! Thank you in advance! Edited August 7, 20232 yr by Trylo
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