Store data in nrf51 dk?

Question

I need to store data in some moments and if something happen i have to read those data, i have to do a log events. 
 I use nrf51-dk and soft device s130. This data is taken from anothers nrf51-dk. I've been reading something here but i don't know if is better use "pstorage" or "fstorage". 
 Could somebody help me. Have some example about that?

Sigurd · Accepted Answer

The pstorage module has been removed in SDK12, and its usage has been replaced by fstorage. fstorage is a much more modern and flexible solution.
The usage of fstorage is described in the infocenter: Experimental: Flash Storage . The full API is described here . 
 I would also recommend that you check out the Flash Data Storage module , which is built on fstorage. This module abstracts away the lower levels of fstorage and provides a simple flash file-system. You can find a simple example of FDS, created for SDK11, in this Git repository: nRF52-FDS-Example .