I used a Mac PRO workstation .
Every thing is working OK.
Only when I have to restart the system it takes a rather long time before it is up and running
I even formated the system drive and reinstall the whole OS .
So it is a clean install.
It shows me for some times maybe 30 seconds a white screen with nothing on it,
And than comes the Apple Icon and than system start up.
AS I was a linux man to find out if there is a problem I was looking for start up log but I can not find it.
If I compare it with linux box running X86_64 OS than the linux box is twice faster.

Can anybody help me to solve this problem.

regards dobby