On Tue, September 30, 2014 12:08 pm, m.roth@5-cent.us wrote:
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.
I would say almost the same: put it behind _APC_ UPS, and install apcupsd. As apcupsd will is designed to talk to APC made UPSes. It may talk nicely to other brands, but I myself do not take chances. And APC is the best in my experience. (Of course, there will be a couple of brands with hardware on the same level...)
Valeri
++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++