[atlas] Probe offline

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 <hank at efes.iucc.ac.il> 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
> >>
> >>
>
>
>
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