I've read (here: Is the Raspberry Pi suitable for running continuously, 24/7?) that using a Raspberry Pi 24/7 is possible as long as you don't write too much on the SD card. So, how do you know if your system/application writes on it ? Are there kind of log of this ?
To be more precise, in my case I'm using the Raspberry as a DSP and I guess I'm not writing anything on it but, how to be sure ?