Possible SD Card Failure - long term use

[homeautoguy]

Hi I am looking at different ways of setting up home automation and I have one of the RaZberry devices setup and working great.
I was looking at another product which also uses the Raspberry Pi as the base/controller and they mentioned having issues with the Raspberry Pi SD Card failing after a couple of months because they were logging data to the SD card and the SD Cards only support a certain number of writes. But even to guard against power failures which can cause the SD card to fail if Raspberry is writing at the time they recommended using a read-only OS.

Do you think the Z-Way OS could reach the SD write limit after some time i.e. is the Z-Way web server have files logs writing all the time?
Do you see any reason why it wouldn't be easy enough task to run Z-Way on something like http://nutcom.hu/ipe-r2/ which is read-only implementation?

[martinisonline]

i'm using a hdd with razberry, connected to the usb port.