Hello all,
I'm new to Ubuntu and server administration in general, but have been having good times with several Ubuntu 12.04 servers I've set up at my company.
I had believed I had properly set up a software RAID-1 array during Ubuntu installation on one server, but when I learned more about the mdadm tool, I discovered the RAID is degraded and one of the disks is "removed"
Code:
I'm not quite sure what happened, but the first disk of my Raid1 array disappeared.
So, I just rebuilt my raid 5 from a failed drive. When checking out the failed raid I noticed something but thought it might go away after fixing it (replacing the drive).
Raid5 1 year 12 weeks ago Hi all,
I am currently using opensuse 12.1,
We have Raid 5 array of 8 disks. A friend of mine accidently removed a drive & place it back and also added a new disk to it(making it 9 disks).
Hi guys,
So I was trying to reshape my raid-5 to raid6.
The array was orginally 4x2TB raid-5.
I added another drive and set it to reshape to raid-6. Everything was going fine, if not a bit slow during the reshape.
I'm using Intrepid and mdadm 2.6.7.
I had a clean stable raid5 array, 5x1tb, before I started. I decided to add another 1tb drive to the array because space was getting low.
I connected the new drive and issued the following commands:
Code:
sudo mdadm --add /dev/md0 /dev/sdg
After rebooting my server this afternoon I noticed that after booting the OS from grub, that the system complained that my raid5 array was degraded. It offered to boot to a command line, or also offered to start the "degraded" array and ended up booting normally after a quasi-verbose boot.
I'm in the OS now, and things _seem_ to be working normally.
Hello,
I have 3 x 1.5TB drives is a raid 5 array, at the moment the storage capacity is enough, but soon I will need to expand this. I have a spare 1.5TB drive that I am thinking about adding to the array.
So far I have read mixed articles/posts, some saying it can be done, others say it can't.
From what I understand I use:
After a restart which stalled, I did a hard reboot and now mdadm can't see the RAID 6 array anymore, LVM can't find the volume which was on that raid array.