[CentOS] "power outage"-save / like embedded systems

Tue Sep 30 22:42:17 UTC 2014
Leon Fauster <leonfauster at googlemail.com>

Am 30.09.2014 um 19:08 schrieb m.roth at 5-cent.us:
> Leon Fauster wrote:
>> I would like to setup a small system based on CentOS6
>> "power outage"-save as possible. The hardware will be
>> switch off by pulling the plug.
>> To accomplishing this goal, I would mounting some fs parts
>> readonly (e.g. /usr) and thinking about tmpfs for volatile
>> parts (e.g. lock, run under var). Additionally "optimize"
>> some vm.dirty_* kernel- and fs/ext4 parameters. /persistent
>> would be used with jffs2 on a CF card. So far the theory.
>> Does anyone have some experience with such type of systems?
>> Any pointer to pitfalls are welcome.
> Put it on a UPS, and install apcupsd.

Sure, for servers but I am talking about a small 
9W-power-consumption appliance that have this 
requirement :-)