# Create LV's for each Disk in the RAID 
root@host:/# lvcreate --name testa -L 10G vgroup /dev/sda1
root@host:/# lvcreate --name testb -L 10G vgroup /dev/sdb1
root@host:/# lvcreate --name testc -L 10G vgroup /dev/sdc1
# Testing the Read Performance
root@host:/# pv /dev/mapper/vgroup-testa > /dev/null
^C09GiB 0:00:22 [98,9MiB/s]
root@host:/# pv /dev/mapper/vgroup-testb > /dev/null
^C38GiB 0:00:20 [  70MiB/s] 
root@host:/# pv /dev/mapper/vgroup-testc > /dev/null
^C,4GiB 0:00:15 [95,7MiB/s] 
# Testing the Write Performance
root@host:/# pv /dev/zero > /dev/mapper/vgroup-testa 
^C71GiB 0:00:15 [95,6MiB/s] 
root@host:/# pv /dev/zero > /dev/mapper/vgroup-testb 
^C67GiB 0:00:20 [69,8MiB/s] 
root@host:/# pv /dev/zero > /dev/mapper/vgroup-testc
^C59GiB 0:00:14 [97,4MiB/s]