This is a quick writeup of an oddity I found while trying to install the vmwareware tools in an Oracle Linux host with the UEK3 kernel enabled (which is by default).
This is what is encountered during the vmware tools installation dialog when running vmwaretools.pl:
Searching for a valid kernel header path... The path "" is not a valid path to the 3.8.13-16.2.2.el6uek.x86_64 kernel headers. Would you like to change it? [yes]
The building of vmware tools fail because the kernel headers can not be found: the installer doesn’t see the kernel headers, whilst you probably installed it (it’s the kernel-uek-devel package belonging to the running kernel).
I didn’t really have a lot of exposure to block-level replication on the storage level before an engagement in the banking industry. I’m an Oracle DBA, and I always thought: why would I want to use anything but Oracle technology for replicating my data from one data centre to another? I need to be in control! I want to see what’s happening. Why would I prefer storage replication over Data Guard?