The best configuration for this server, with the criteria being performance, configurability and flexibility, is:

A server has three disks of 80GB each and must manage a database with 4 million records of 30KB
each. The best configuration for this server, with the criteria being performance, configurability and
flexibility, is:

A.
Use just LVM

B.
Use RAID1 over LVM

C.
Use LVM over RAID5

D.
Use LVM over RAID1

E.
Use RAID5 over LVM

Explanation:
RAID1 would not be performance enhancing (Mirroring), as would the default LVM (linear). So use a
RAID5 for redundancy and performance and use LVM for added configurability and flexibility
A striped LVM only would work too, I guess, if you need no redundancy at all.