Powering the Arches cluster down and back up

Powering down and back up Arches

• Log in to node 1.

• Execute:

sudo clrun "/sbin/shutdown -h now" all 

• Verify that the systems have powered off (in about 30-90 seconds)

• On node 1 execute:

      sudo /sbin/shutdown -h now 

• To turn off the UPS, hold down the Power button (the one with the circle)

• The ethernet switch can be unplugged if it needs to be powered off.

Powering arches back up

• Turn on the UPS (if off) - hold down the Power button (circle button)

• Power on all the nodes starting with node 1 in at least a 10 second delay.

• Verify that busynode shows all the hosts up about 2 minutes after last system boots.