The software-raid tag has no wiki summary.
13
votes
2answers
21k views
How to recover a crashed Linux md RAID5 array?
Some time ago I had a RAID5 system at home. One of the 4 disks failed but after removing and putting it back it seemed to be OK so I started a resync. When it finished I realized, to my horror, that 3 ...
6
votes
2answers
1k views
Will the system make sure that mdadm is sync-ed before completing a reboot?
This is a follow up to my crazy mdadm problem. I'm trying to figure out what might have caused sda to get out of sync in the first place. The only thing I can think of is that I had just run a bunch ...
5
votes
2answers
3k views
How to raid-mirror existing root partition?
I'd like to mirror my existing root (and only) partition on an SSD to another disk. It should be a sort of RAID-1, just asymmetric*. I know there's the option mdadm --write-behind, which should do it.
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2
votes
1answer
306 views
Drive was unable to assemble into the array
I ran
mdadm -A /dev/md0 /dev/sda1 /dev/sdb1
Only /dev/sdb1 was loaded into the array though. I have a few more arrays on the same two drives too. Each time the partition on sda failed. dmesg told ...
1
vote
2answers
194 views
Copying linux install from non-RAID/x86 to RAID/x86-64
I'm copying an Ubuntu Server install from an x86 machine with a single hard disk
to a new machine with x64 and two identical disks. Two partitions will span
the new disks: One small-ish RAID1 for ...
0
votes
2answers
61 views
Migrate an entire volume group LVM2 to RAID5
I have a Virtual Host server build with Ubuntu and Xen
SO
Ubuntu 12.04.1 LTS 64Bits
xen-hypervisor-4.1
Disk
Hitachi SAS 15K 147GB (x2) in a Volume group
sda1 1GB /boot
sda2 146GB lvm
sdb1 ...
