[CentOS] Shrinking a volume group

On Thu, 2006-09-14 at 10:11 -0500, Steve Bergman wrote:

> So, in conclusion, I will say that a *truly* well studied admin, armed
> with today's tools, including the kernel's automatic mechanisms, can do
> better than the automatic mechanisms alone.  The average admin is likely
> to make things worse.
> 
> Both will probably do better than the smartest admin was able to do with
> old school Unix and its panoply of (rather static) tunables.
> 
> Do we kinda agree on that?

The problem comes when you do something unusual and the machine adapts
to it even though that pattern won't repeat.  As an example, think
about what running a backup once a day does to your self-tuning
buffer cache...

-- 
  Les Mikesell
   lesmikesell at gmail.com