[CentOS] Centos/Linux Disk Caching, might be OT in some ways

Ross Walker wrote:

> Even directio by itself won't do the trick, the OS needs to make sure
> the disk drives empties it's write cache and currently barriers are
> the only way to make sure of that.

Well I guess by the same token nobody in their right mind
would run an Oracle DB without a battery backed write cache :)

nate