On Tuesday 24 March 2020 09:45:49 deloptes wrote: > Rick Thomas wrote: > > The covid-19 situation is giving me lots of free time recently, so > > I've ordered a Raspberry Pi 4 with delivery expected sometime this > > week. > > Can you explain to me what type of storage you intend to setup on the > pi4 - USB3 disks? > > Does someone has experience with USB3 disks - may be in raid1 on the > Rpi4? > > I tried years ago with usb2 disks in raid1 and the results were > miserable. > > regards
I am currently running 2 SSD's, a 120GB and a 240GB on usb-3 to sata adaptors, working flawlessly on a pi4's usb-3 ports. It took several experiments with adaptors to find good ones though. The adaptor would die, but the ssd was fine once the adaptor was replaced with a different brand. I've disabled the installs default 10 meg swap file, and added a swap partition on the 120GB set for 10GB, which its gets into by a bit less that 100megs building a realtime kernel, or LinuxCNC, on a 2Gig rpi4, basicly changes to reduce the write wear on the 64GB u-sd the pi boots from. Logs are the majority of the write ops on the u-sd now. And useing 64G u-sd's seems to spread out that wear, I've had no trouble with it. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene>
