Create RAID5 using all 5 disks

Hello,
i wonder if is it possible to create a RAID5 using all 5 disks, with 3 TB each one.
I have installed firmware 16.0 on my 5bigNas2. I have marked as "fd00" type these disks: sdb2, sdc2,sdd2 and sde2. But I want to include sda8 (2,7 TB partiton)
All sdb2, sdc2, sdd2, sde2 have 2,7 TB also
I noticed that /dev/sda8 mounts on every boot as /share/1000
Is it possible to add this partition to the ARRAY schema?
i wonder if is it possible to create a RAID5 using all 5 disks, with 3 TB each one.
I have installed firmware 16.0 on my 5bigNas2. I have marked as "fd00" type these disks: sdb2, sdc2,sdd2 and sde2. But I want to include sda8 (2,7 TB partiton)
All sdb2, sdc2, sdd2, sde2 have 2,7 TB also
I noticed that /dev/sda8 mounts on every boot as /share/1000
Is it possible to add this partition to the ARRAY schema?