Have you read his detailed wiki??  It is all explained/described in there 
.....



On Tuesday, 1 November 2016 12:49:10 UTC+2, Jacek Skowroński wrote:

> Could You provide some structure how to divide data between ram and flash?
> On flash i'd like to have
> DB
> Config
> Skins
>
> Rest could be in ram
> Www files
> Logs
> Any other tempoprary weewx files
>
> W dniu wtorek, 1 listopada 2016 Glenn McKechnie <glenn.m...@gmail.com 
> <javascript:>> napisał(a):
>
>> Hi Jacek,
>>
>> <https://github.com/glennmckechnie/rorpi-raspberrypi>
>>
>> On 1 November 2016 at 20:58, Jacek Skowroński <yace...@gmail.com> wrote:
>>
>>> after one hour I get
>>> 14302 be/4 root          0.00 B     11.70 M  0.00 %  0.01 % python 
>>> /usr/bin/weewxd --daemon --pidfile=/var/run/weewx.pid /etc/weewx/weewx.conf
>>>
>>> does it mean that weewx pid write down 11.7? or which file produced so 
>>> huge amount of data?
>>>
>>
>>  
>> Interesting that you have no DISK READ value, I'd have thought there 
>> would be something in that field?
>>
>> Yes, that's what it has written to disk, although 11.7M doesn't sound 
>> excessive for weewx. As I noted previously, that value is for everything 
>> that weewx is handling; sqlite database writes, webserver pages and images. 
>> It also includes writes to tmp, although thats probably a tmpfs so it's 
>> removed from the disk already. Anyway, that means that it's not one file in 
>> particular that's attracting all that traffic.
>>
>> Maybe I should put it in the ram or on the flash
>>>
>>>
>> That's your call, if you're asking me then yes :-) One size doesn't fit 
>> all, but you can choose a method that you're happy with and can handle. 
>> Me?  I'd be attempting to preserve the SDCard for its main purpose, 
>> running the OS and keeping the pi alive. The data that weewx generates is 
>> moved elsewhere, preferably somewhere or something with a proven track 
>> record. In particular something that matches its value ie: the database 
>> gets priority storage, the webserver not so much.
>>  
>>
>>
>> Cheers
>>  Glenn
>>
>> rorpi - read only raspberry pi + weewx: now with scripts 
>> <https://github.com/glennmckechnie/rorpi-raspberrypi>
>>
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