[atlas] Probe offline

In fact looking back at the SOS logs it even managed to detect it:

USB-READONLY

On 9 March 2016 at 13:31, Marty Strong <marty at martystrong.co.uk> wrote:

> 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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