> What were the commands ?
I created the array with: sudo mdadm --create --verbose /dev/md0
--level=5 --raid-devices=3 /dev/sda /dev/sdb /dev/sdc
As far as I know this used the default chunk size. I checked the status
with: cat /proc/mdstat
After the array has been created I formated it with: sudo mkfs.ext4 -F
/dev/md0
I saved the configuration with: sudo mdadm --detail --scan | sudo tee -a
/etc/mdadm.conf
I created the mountpoint: sudo mkdir -p /mnt/raid
I mounted it: sudo mount /dev/md0 /mnt/raid
Updated the fstab for automount: echo '/dev/md0 /mnt/raid ext4 defaults
0 0' | sudo tee -a /etc/fstab
> It looks like the disk has a GPT partition table. Is this expected ?
> If not, it could be another instance of unintended GPT "recovery",
and a reason against using unpartitionned disks.
Yes I choose GPT intentional as each of the HDDs exceed 2TB but they did
loose the "Linux RAID" Flag after the reboot.
> What is the output of
> wipefs /dev/sda
> wipefs /dev/sdb
> wipefs /dev/sdc
DEVICE OFFSET TYPE UUID LABEL
sda 0x200 gpt
sda 0x74702555e00 gpt
sda 0x1fe PMBR
DEVICE OFFSET TYPE UUID LABEL
sdb 0x200 gpt
sdb 0x74702555e00 gpt
sdb 0x1fe PMBR
DEVICE OFFSET TYPE UUID LABEL
sdc 0x200 gpt
sdc 0x74702555e00 gpt
sdc 0x1fe PMBR
