Hello, On Sun, Nov 26, 2023 at 11:18:39AM +0100, Gandalf Corvotempesta wrote: > i'm doing some maintenance replacing some not-yet-failed HDD with WD RED SSD. > I've read the warning on the homepage > https://raid.wiki.kernel.org/index.php/Linux_Raid > > Are SSD drives still subject to SMR ? I've thought that it was related > only to magnetic drives not on SSD. SMR is not applicable to flash-based storage. I expect the warning on the wiki was written at a time when the only drives bearing the WD Red brand were HDDs, not any SSDs. Thanks, Andy