Why won't the ESRI SDE Service Start

What the heck, can't start the SDE service on one of the RHEL 5.x GEO Servers, pisses me off when I have to work. 

Fix
giomgr_esri_sde.log was full, apparently has 2Gig or so limit.  Renamed old log and restarted SDE service.  You can safely delete old log.  Log is located at $SDEHOME/etc