Random reboots after upgrade

Recently upgraded to v6, after which we are experiencing random vm reboots running Oracle on RedHat, the vms are nodes in a RAC cluster.  Looks similar to the power being pulled nothing in the OS not even a crash dump etc just normal running then the startup boot process.  I dont see anything in vSphere to indicate  system activity such as vmotion etc.

Anyone give some guidance on how I can rule out vSphere.  The RAC clusters were stable up until the migration from v5.5 to 6.  The only thing I can think of is upgrading the tools and HW version.  but normally if there is an issue one would see a crash or kernel dump. 

0 Kudos
0 Replies