OK, I don't know if this one is related to oracle database, OEL, or something else entirely. But here it is: We have oracle clusterware 11.1 installed and running with asm 11.1. We also have oracle 10.2 installed, as well as 10.1. I have created a 10.1 database. ASM is on RAW against EMC storage. This has to be on raw because the intent is to take 10.1, 32 bit database to 10.2 64 bit. This requires a stop at 10.1 64 bit along the way, and 10.1 reqires ASM on raw. Anyway, the problem is that the servers are rebooting every 2-3 days at 2:15 am, and we have not been able to figure out why. There is nothing in the ASM or clusterware or database logs, they show everything running fine then a restart. Nothing in /var/log/messages. Just shows a restart. Any ideas?