Setup required for RAID 5 system

I’ve used online.net (scaleaway) in the last two years but I’m having difficulty setting up a ssystem with RAID 5 hard drives. I’ve used Virtualmin for well over 12 years.

https://console.online.net/en/order/server
Store-2-M Limited offer Intel® Xeon E5 1410v2 64 GB 3 x 6 TB

I’m looking for someone to setup the a RAID system. I have just installed CENTOS 7 and Virtuamlmin GPL but the RAID is not setup somehow.

I’m looking for someone to complete the setup.
can you give me an idea of cost
thanks

Brian

A - SATA - 5.46 TB
B - SATA - 5.46 TB
C - SATA - 5.46 TB

Local disk space 561.24 GiB used / 10.27 TiB free / 10.82 TiB total

Status of drive /dev/sda
Location SCSI device A Drive size 11.17 TiB
Make and model DELL PERC H310 Supports SMART? No
SMART enabled? No

[root@ns dev]# df -H
Filesystem Size Used Avail Use% Mounted on
devtmpfs 34G 0 34G 0% /dev
tmpfs 34G 0 34G 0% /dev/shm
tmpfs 34G 9.6M 34G 1% /run
tmpfs 34G 0 34G 0% /sys/fs/cgroup
/dev/sda3 12T 2.5G 12T 1% /
/dev/sda2 1.1G 127M 821M 14% /boot
tmpfs 6.8G 0 6.8G 0% /run/user/1000

[root@ns dev]# df -i -h
Filesystem Inodes IUsed IFree IUse% Mounted on
devtmpfs 7.9M 411 7.9M 1% /dev
tmpfs 7.9M 1 7.9M 1% /dev/shm
tmpfs 7.9M 712 7.9M 1% /run
tmpfs 7.9M 16 7.9M 1% /sys/fs/cgroup
/dev/sda3 350M 100K 350M 1% /
/dev/sda2 63K 335 63K 1% /boot
tmpfs 7.9M 1 7.9M 1% /run/user/1000
[root@ns dev]#

sorry, I don’t need help on teh server now.
I understand the difference between Raid 1(mirror) and RAID5

the issue I have is with older server, but I will terminate it’s use.
Brian