I set up RAID1+0 with 8 1TB SATA HDDs by SSA(Smart Storage Administrator).
I confirmed 4TB disk was made in SSA but after installing Ubuntu16.04, I could see only 1.8TB disk size by both parted command and dmesg.
I use HPE Smart Array P816i-a as RAID controller.
GPT pertition is used for over 2.2TB disk size.
/dev/sda2 ext4 /
The result of lsblk is as follows.
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 1 1.7T 0 disk sda1 8:1 1 513.1M 0 part /boot/efi sda2 8:2 1 1.6T 0 part / sda3 8:3 1 63.7G 0 part [SWAP] sr0 11:0 1 1024M 0 rom
Do you have any idea to use full disk size?