Unknown CM server logs previous to reboot it doens´t contains logs in around 10 hours previous to outage.
Logs
root@S8500> more 2012-1126-114804.log >>> It is the file log previous to 11:30 yesterday >>>
20121127:012030523:23904691:hmm(9645):MED:[CM5_proc_err: pro=7171,err=200,seq=39 951,da1=85(0x55),da2=0(0x0)] >> Last log 2012 Nov 27 at 01:20 hours >>
root@S8500> more 2012-1128-112921.log >> It is immediate next file log >>>
20121128:112922611:100:LIC(9497):HIGH:[doReq: ValidLicense for appId 0 failed 00 >>> It is the reboot process by itself >>