[aprssig] Quick APRS hardware survey (APRS Hotspot)

John D. Hays john at hays.org
Thu Jun 22 16:37:45 EDT 2017


You do know that under the Pi 3 you can configure to use USB connected boot
and storage disks (eg SSDs or even spinning media).

On Thu, Jun 22, 2017 at 1:22 PM, Steve Dimse <steve at dimse.com> wrote:

>
> > On Jun 22, 2017, at 12:36 PM, Greg Trasuk <trasukg at trasuk.com> wrote:
> >
> > Could you expand on this?  I did the calculations, and a reasonable SD
> card should have enough write cycles for several years.  Why would the
> system need to be read-only?
> >
> The theoretical numbers certainly do bear this out, but practice does not.
> Even with large high quality SD cards, and following all the precautions
> like logs files etc. on RAMdisk, the Pis I use as hubs for my RV and home
> automation and data collection systems crash with a corrupted card in a
> year or so. Under higher use, as a Outernet hub with constant writes to a
> database, the average time to corruption was four months.
>
> Steve K4HG
>
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-- 

------------------------------
John D. Hays
K7VE

PO Box 1223, Edmonds, WA 98020-1223
   <http://k7ve.org/blog>  <http://twitter.com/#!/john_hays>
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