1

[ubuntu] Migrating to RAID 1

view story
linux-howto

http://ubuntuforums.org – I'm trying to migrate the drive containing /home to a raid 1, and I've found so many incomplete and wildly divergent instructions I'm not sure where to start, other than spending the next 6 months studying raid and playing around in VBox. Right now, I have a 3 harddrives. sda (160GB) with / at sda1, plus a swap partition. sdb (1TB) for /home at sdb1 (only partition on drive) sdc (1TB) not in use, but formatted with a single ext4 the same size as sdb1. I have a motherboard that has a basic RAID controller that can handle raid 1, but there is absolutely zero documentation for it, even from (Hardware)

xskl's picture
Submitted by xskl on 10/12/2012

Stories similar to [ubuntu] Migrating to RAID 1

convert /dev/md0 to /dev/sda1 24 weeks 2 days ago

I used a Software-RAID I and want to access the data without RAID now.

I have three drives (sda, sdb and sdc) which are partitioned into two partitions each set to "raid linux autodetect". The first partition is used for a RAID 0, the second partition for a RAID 1 on LVM.

For some reason sdc1 drops out of the RAID 0 and can only be re-added after a reboot. sdc2 stays in its RAID 1 though.

YaST software RAID issue 3 years 23 weeks ago

Hello,

When in YaST/System/Partitioner I try to create RAID for my second HDD which is named "sdb". My original "sda" hdd is partitioned as follows: dev/sda, disk type dev/sda1, linux swap, swap, swap dev/sda2, linux native, ext3, / dev/sda3, linux native, ext3, /home

I want to set up software RAID-1 on my Ubuntu system, and found this example of an /etc/raidtab:

raiddev /dev/md0 raid-level 1 nr-raid-disks 2 nr-spare-disks 0 persistent-superblock 1 device /dev/sdb1 raid-disk 0 device /dev/sdc1 raid-disk 1

I would however like the path to the raid device to be /raid.

I have a motherboard with an Intel ICH9R RAID chip. I have an existing RAID 5 setup over three disks which is NTFS formatted. I'm dual booting and I'd like to be able to access the RAID device in both Linux and Windows (and possibly OSX86, if I can ever get the darn thing to work).

I want to learn how to use Software Raid 10, is it possible to use VirtualBox by adding four storage images?

This is my plan:

4x 100mb partitions (1 on each drive) configured as a raid 1 for /boot in ext3. Then with the remaining space on each drive, setup a software raid partition and configure it to to LVM and raid 10.

Hi :)

I am using Zentyal v3 which uses Ubuntu 12.04.1.

I've already posted on the Zentyal forums [1], but I think its a Ubuntu issue, so I try to get a hint on these site :)

I have an existing lvm and raid configuration from the previous Zentyal version (Ubuntu 10.04). After starting the 12.04 installer (no upgrade) - the partitioner has detected the raid and my lvm config (with curious names,

Fedora 11. Im trying to setup kickstart so it lays out a mirrored volume group.

I have 2 disks sda and sdb. I want a primary partition on each disk 200mb in size for /boot. This is to be mirrored onto raid device md0 (raid 1).

The rest of each disk is to be setup partition which grows to use the remaining space, and is also mirrored (raid 1) md1.

I am testing an LVM configuration in VirtualBox. The VM has 2 - 20 GB disks.