we have upgraded the Oracle Unbreakable from version 5.2 to 5.5.
What we did was:-
we install an http server with the 5.6 kernel as repository.
we boot on a 5.6 DVD and upgraded the beast to the normal XEN kernel.
Then, we reconfigure YUM on the server to access the repository..
we yum install yum-utils, yum install kernel*, yum install oracle-*, yum install ocfs2*
why all this gimmick..I was unsure about the support and problem potential of upgrading an ocfs 1.4 to ocfs 1.6
Unbrekable kernel works ok, so far, i have not seen the 'memory leakage' of the 5.2 kernel..