Hi Martin, Just got an email that mine has shipped but no tracking info just yet.
My 16mm reamer finally arrived so I can get back to the Harmonic Drive project once I get the S100 computers off the table saw and all the boxes off the floor. Kind of a mess. And then I was foolish enough to buy this bare board and order parts. The CF holders also finally (ordered in April) arrived. But I have to write the disk drivers for these and that's turning out to be a bigger problem than I originally thought it would be. When done the CF cards replace 8" floppy disks for a Z80 based computer. (Yes. 8" floppy that at single sided single density hold a whopping 243K bytes) John > -----Original Message----- > From: Martin Dobbins [mailto:tu...@hotmail.com] > Sent: June-30-22 8:14 PM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] Pi4 SSD, MicroSD use > > Hi John, > > That gives me 99% off as a new user bonus, so I would have to pay them US$ > 0.01 with free shipping > estimated delivery August 29th <lol> > > Martin > > ________________________________ > > > Really don't want to pay amazon.ca $25 for that sort of cable since they > likely all come from the same > place. > > https://www.aliexpress.com/item/32991882020.html > > This one is only $5 Cdn with free shipping and I can wait until August for it. > > John > > > > > > -----Original Message----- > > From: John Dammeyer [mailto:jo...@autoartisans.com] > > Sent: June-30-22 1:32 PM > > To: 'Enhanced Machine Controller (EMC)' > > Subject: Re: [Emc-users] Pi4 SSD, MicroSD use > > > > I'm going to guess it won't work with the small KingSpec 8GB that is marked > > on the board "7PSATA-1" > > > > John > > > > > > > -----Original Message----- > > > From: Thaddeus Waldner [mailto:thadw...@gmail.com] > > > Sent: June-30-22 10:43 AM > > > To: Enhanced Machine Controller (EMC) > > > Subject: Re: [Emc-users] Pi4 SSD, MicroSD use > > > > > > 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 <jo...@autoartisans.com> 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 > > > > <thadw...@gmail.com> Date: 2022-06-30 > > 7:47 > > > a.m. (GMT-08:00) To: "Enhanced Machine Controller (EMC)" > > > <emc-users@lists.sourceforge.net> > 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 > > > listEmc-users@lists.sourceforge.nethttps://lists.sourceforge.net/lists/listinfo/emc-users > > > > _______________________________________________ > > > > Emc-users mailing list > > > > Emc-users@lists.sourceforge.net > > > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > > > > > > _______________________________________________ > > > Emc-users mailing list > > > Emc-users@lists.sourceforge.net > > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users
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