[HOT] Optimal NAS tech specifications to serve imagery tiles

Joseph Reeves iknowjoseph at gmail.com
Wed Mar 22 16:08:54 UTC 2017


Thanks John, but I'm mostly certain POSM doesn't host imagery:
https://github.com/posm/posm/blob/master/STATUS.md

Looks like it could be a good feature to add though! Looks like Dale has
opened an issue on it already: https://github.com/posm/posm/issues/277

Cheers, Joseph



On 22 March 2017 at 15:58, john whelan <jwhelan0112 at gmail.com> wrote:

> ​an old post giving details.
>
> John​
>
> Matt Sayler <matt.sayler at gmail.com>
> 15/08/2016
> to me, Laura, hot
> POSM & Red Cross had an excellent presentation at SOTMUS, and Seth
> mentioned he'd be willing to set some up for the cost of hardware and
> brownies (I assume that will become dependent on demand/appetite):
> http://stateofthemap.us/2016/field-mapping-at-scale/
>
>
> Nutshell: POSM is for mapping in low/no service areas. It can serve as a
> local, disconnected OSM server, which can later push changes up to the main
> OSM when in an area with service. They primarily use Intel NUC's (~$350 for
> all hardware, runs off ~6w), but have installed it on Rasberry Pi, Intel
> Edison, Beagle Bone, etc. I'm not aware of them doing a usb bootable
> install, but might be possible? Red Cross uses $50 Android phones & Field
> Papers for doing the mapping.
>
> Pretty freaking cool project!
>
> https://github.com/AmericanRedCross/posm
>
> On 22 March 2017 at 11:53, Joseph Reeves <iknowjoseph at gmail.com> wrote:
>
>> > In a windows environment its fairly easy to configure.  In the
>> security tabs for the folder you just make the folder shareable but read
>> only.
>>
>> There's OSM editors that will source imagery over SMB? I've never looked
>> into it, but I'd be surprised.
>>
>> Thinking about this very quickly, my points would be:
>>
>> 1: RAID: I'd want some disk redundancy as the device is likely to be used
>> in tough environments that are far from good sources of replacement disks,
>> or replacement imagery.
>> 2: Software: As already mentioned, you're going to need some software to
>> serve the tiles. WMS? You'd want a device that was easy to get running with
>> third party software. Performance may also be an issue, depending on how
>> many people you were catering for.
>>
>> I hope someone will come along with an example of what they've managed to
>> do before. If not it should be a fun exercise :)
>>
>> Cheers, Joseph
>>
>>
>>
>> On 22 March 2017 at 15:42, john whelan <jwhelan0112 at gmail.com> wrote:
>>
>>> Are you looking for information on how to do it?  On suggested hardware?
>>>
>>> Essentially for this purpose I see no reason why one local machine such
>>> as a lap top couldn't feed the others.  In a windows environment its fairly
>>> easy to configure.  In the security tabs for the folder you just make the
>>> folder shareable but read only.
>>>
>>> Have you  looked at POSM?  (Portable OSM) they may have this already
>>> worked out and documented for the field.
>>>
>>> Thanks John
>>>
>>> On 22 March 2017 at 11:22, Claire Halleux <claire.halleux at hotosm.org>
>>> wrote:
>>>
>>>> Hello HOT Community,
>>>>
>>>> I'm currently looking into NAS specifications for serving imagery tiles
>>>> locally for OSMapping purposes. The NAS would be coupled to a router
>>>> accessible to the mappers. Contributors would still be connected to the
>>>> relatively slow Internet for downloading/uploading their data but the idea
>>>> is to get the ability to load imagery tiles much faster and access
>>>> additional images, in particular during mapathons.
>>>>
>>>> Therefore I would welcome any feedback from people, organisations or
>>>> communities using similar hardware to support data digitizing.
>>>>
>>>> Thank you!
>>>>
>>>> Claire
>>>>
>>>> Claire Halleux
>>>> +243 81 611 6998 (Kinshasa, DRC)
>>>> OpenStreetMap RDC
>>>>
>>>> _______________________________________________
>>>> HOT mailing list
>>>> HOT at openstreetmap.org
>>>> https://lists.openstreetmap.org/listinfo/hot
>>>>
>>>>
>>>
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>>
>
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