Thank you very much Vladimir,
I will try to do all of this work. But which is the "theoretical best placement" for the files, according I already have the OS installed on the HDD.
I think the best I can do is:
HDD:
C:\ OS, SQL Sever binaries and other soft.
D:\ TempDB (in a different logical drive to avoid an uncontrolled growth crashes the OS)
SSD:
S:\ MDF and LDF. Formatted at 8Kb or 64kb?
What do you think? Or is better to keep MDF alone on the SSD, and put LDF on another logical drive E:\ in HDD (because of almost same sequential speed of SSD, and no volatility)?
Thank you again,