I am using this cable: StarTech.com SATA to USB Cable -... https://www.amazon.com/dp/B00HJZJI84?ref=ppx_pop_mob_ap_share
> On Jun 30, 2022, at 11:33 AM, johnd <[email protected]> wrote: > > Hi Thaddeus,Can you add some information? 1. What USB 3.0 to SATA adapter > are you using?2. Or is it a case that the SATA drive or SSD fits into?3. > Which specific SSD are you using? Thanks JohnSent from my Samsung S10 > -------- Original message --------From: Thaddeus Waldner <[email protected]> > Date: 2022-06-30 7:47 a.m. (GMT-08:00) To: "Enhanced Machine Controller > (EMC)" <[email protected]> Subject: [Emc-users] Pi4 SSD, > MicroSD use Here are some recent experiences with flash storage on a Pi4 as > adevelopment environment running LinuxCNC 2.8.2.A while back I posted in this > mailing list that using an SSD on the Pi4 isprohibitive because it causes > latency issues. At the time, I tested this ona heavily used, repurposed ssd. > I later discovered that the SSD was failingdue to write wear. This is likely > what caused the latency issues in thefirst place.In the meantime I ran the > Pi4 (2GB memory) as a development platform,running up to 3 instances of VS > Code (1.5GB memory each) along with Glade,browser, etc. This type of usage > made short work of the Samsung EVO microSDcard. The card wear issue first > showed up as spurious latency violations. Abit later the entire system became > maddeningly slow and unusable.Cloning to a fresh sd card solved the > problem.In the process of making backups I also cloned the system to an SSD > (intel320 this time) and to my surprise, it ran with zero latency issues. I > willbe using SSDs from now on, thank you.Some takeaways:1) large page files > are bad news for cheap flash storage2) "worn out" storage will cause latency > issue on low latency systems3) latency tests on a low latency system might be > a way to detect flashwrite wear > issues.Thaddeus_______________________________________________Emc-users > mailing > [email protected]https://lists.sourceforge.net/lists/listinfo/emc-users > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
