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.
Hey,I'm currently runing a server using Debian, but sorely miss Arch linux' rolling release system.The server is running a 4 disk mdadm RAID array which I would be veru sorry to loose or corrupt.Is it possible to just install arch and then have arch assemble the array as is, or will itneed to delete the content on the disks in order to assemble a new array?I know it is possible to assemb
A while back I created a RAID 6 array consisting of 5 2TB drives and formatted it with XFS and set up the block and stripe size appropriately.
Yesterday I added two more 2TB drives to the array and it is almost done reshaping the array. While running that I realized that XFS is optimized for the number of drives, and so far as I can tell there is no way to change that after the fact.
Recently, I added to new disks to a machine. I created one partition on each drive, and used software raid to set up a raid1 between the partitions. However, for some reason after I add the partitions to the array, mdadm also detects the superblock in the underlying block devices.
Before my installation of 12.04 server I read a lot on the forum about raid install and problems with Grub not being able to boot from anything other than a raid 1 array. However I had no problem at all with installation on a raid 6 array (5 disks) using mdadm.
What I did using Alternate 12.04 CD:
1. Choose Manual partion
2. Wipe all 5 drives
3. Assign all drives to a Raid 6 array
4.
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.
Hi there:
Thanks for reading this thread and I thank you in advance for any help you can provide.
So this is what happened... I noticed that my MDADM RAID 5 array with drives ordered: /dev/sd[EFGHIABCDKJ]1 reported a failed drive -- /dev/sdb1. I stopped the array and ran smartctl -t long /dev/sdb1 and received a pass.
I just finished setting up a RAID5 array with 3 new 1.5TB hard drives using mdadm. I spent the last 5 days trying to get the RAID array working. Everything is up and running now except I have not been able to share folders on this drive using Samba. I can share files in my home directory and on my NTFS drive, but not the RAID array. I am trying to access the shares from a Windows Vista PC.
Hi guys,
it's been quite a nightmare this weekend...
I perform an upgrade from 11.04 to 12.04... the first reboot for 11.04 to 11.10 was OK, but the second, the serve won't start...
because /dev/sdb partitions was removed from the raid...
It's the second time it happen..
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