I've had 2 probes that died recently, around the same time, USB seems to be dead. I saw a thread a while back about these SanDisk drives being known faulty and going into read-only mode. Replacing the USB seems to have sorted them anyway.
On 9 March 2016 at 08:46, Hank Nussbacher <[email protected]> wrote: > On 07/03/2016 15:24, M. Piscaer wrote: > > Finally got it up. USB was fired. Threw it away. > > Thanks to all, > Hank > > > Hi Hank, > > > > On https://www.youtube.com/watch?v=Y8oF0MaoUlQ I saw that you can use an > > new clean USB disk. When the usb disk is FAT formated, the probe will > > use that new usb stick. > > > > Kind regards, > > > > Michiel Piscaer > > > > On 07-03-16 14:09, Hank Nussbacher wrote: > >> On 07/03/2016 10:49, Gert Doering wrote: > >>> Hi, > >>> > >>> On Mon, Mar 07, 2016 at 10:39:47AM +0200, Hank Nussbacher wrote: > >>>> What does that mean? I can try reseating the USB again, but if that > >>>> doesn't work, it could be the USB is fried? > >>> Try the USB stick in a "normal" PC and see whether it can be formatted > >>> there. I recently had one of mine completely break - the stick could > be > >>> seen, but it was empty and all write access failed. > >> I pulled the USB stick and tried formatting it. Even though it says 4GB > >> Sandisk, I could only get it to 1GB. > >> So I opened a new probe, extracted its USB stick and stuck it into the > >> probe as well (unformatted). Still off-line. > >> > >> I went to our "lights out" facility 3x today - a 15 minute brisk walk > >> across campus and don't have time to > >> go there again. > >> > >> At home it is far easier to play with these things then it is when the > >> probe is installed as close to your network core as possible (which is > >> usually at a LO facility). I know exactly how you feel! > >> > >> -Hank > >> > >>> I'm not sure what the Atlas v3 does with its USB stick, but this is the > >>> number one problem issue... maybe a new firmware version could be > designed > >>> that has more advanced flash handling (like, ubifs instead of "normal" > >>> filesystems) and falls back to "not use flash if the flash is broken". > >>> > >>> What I see with my probes is that the aim of the flash buffer ("we can > >>> store measurement results if we can't upload them to the control server > >>> due to network outages etc." -> less probability of result loss) is > >>> actually backfiring into "extended downtimes of probes due to USB > breakage > >>> of probes in locations where you can't just-so swap the USB flash"... > >>> (two of my 3 v3 probes have had virtually no network outages since they > >>> are operating, and the central servers also had few outages - but both > >>> have been down for weeks because I just had no time to go out, buy a > >>> new flash drive, and *drive over* to replace it - once again) > >>> > >>> Gert Doering > >>> -- NetMaster > >> > >> > > >
