I had a machine that made a lot of noise, so I didn't really want to sit too close to it.
It got moved to a distant room and placed next to another machine, and that when I learned that the built in OutOfBand feature on that particular machine didn't include the normal console. But I knew there was a serial port on it, so from a machine next to it I could run a cable, now all I needed was to enable login on a serial console. It appears it takes a fair few commands on openindiana.
# svccfg -f - <<EOF select svc:/system/console-login add ttya select svc:/system/console-login:ttya addpg ttymon application setprop ttymon/device = astring: /dev/term/a setprop ttymon/label = astring: console setprop ttymon/modules = astring: ldterm,ttcompat setprop ttymon/nohangup = boolean: true setprop ttymon/prompt = astring: "\`uname -n\` ttya login:" addpg general framework setprop general/enabled = boolean: true EOF