Quote from: trueimage on June 30, 2011, 06:06:31 PM

Quote from: Wildvest on June 29, 2011, 11:17:55 PM

Wild(In)vest: Grin

4 Miner-Rigs, á MSI 890FXA-GD70, Sempron 140, 2 GB Ram, PSU 1250 W, 3 x HD 6990 OC @ 915 = overall 9.5 GH/s
running diskless, booting via networkboot into heavily customized LinuxCoin, incl. Software-Watchdog and external Watchdog with Remote-Powerswitch (hardreset)

Album (all Pictures)
http://imgur.com/a/usqDL

what are you using as a remote power switch? and can you link the watchdog software or whatever that is?

i'm using the standard linux software watchdog http://linux.die.net/man/8/watchdog to check against the miner logfile change-datetime-stamp (i redirected the miner output to a logfile). if there is no change for 5 min (crash) than the watchdog daemon will reboot (softreboot)

furthermore i check from the main server the status of each miner, if ssh is not responding, than i do a hard reset via my remote power switch. this remote power switch is a very high sophisticated thing ;-) it is a serial relais card with 8 relais, powering the main power switch of every minerrig - so in case the software watchdog is not rebootiing or to slow and the ssh login to the miner is timing out or rejected than the main server power off for 5 sec. and power on again. (hardreboot)

since i'm running diskless with a live image(LinuxCoin) via networkboot, the hardreboot is not a problem at all.
this setup works great for me, so i can push my setup to the limit and tweak around ... and unfortunately the server room is 10km away