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RAID 10 on Fedora 16

asked 2012-03-01 13:41:42 -0600

Aero Maxx gravatar image

updated 2012-03-02 06:03:16 -0600

Could someone help me with a RAID 10 setup on Fedora 16 with disk druid, as trying to do it on a brand new install with 4x 300GB hard drives.

If I chose 1 hard drive at install I can see how this is setup, but I am having difficulty knowing what to change to make it into a software raid, have googled this extensively and tried to understand various guides without any luck, dont follow what there saying as finding them a bit vague on some details.

These are the guides/sites I have looked at in order to try and help myself, I have shortened the urls as they was fairly long.

VolGroup        1144192
    lv_root     51200      /           ext4
    lv_home     229472     /home       ext4
    lv_swap     4992                   swap

    sda1        1                      BIOS Booot
    sda2        500        /boot       ext4
    sda3        285686     VolGroup    physical volume (LVM)

Ideally I would like to be able to take a drive out should it fail and replace it with another and for it all to be ok. I believe this would be possible with raid 10.

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answered 2012-03-19 04:23:16 -0600

ZenDark gravatar image

First of all you must have clean disk. So backup your data and start a clean installation.

Select Create Custom Layout and delete all the partitions in all your disk.

I will create a RAID10 partition of 500 MB for /boot, and the rest for / in another RAID10.

In the disk 1 create a RAID Partition of 500 MB, create the same partition in the others 3 disk. You will have 4 partitions of type RAID, one in each of your disk.

Next, create another RAID Partition in disk 1, selecting all the remaining space. Do the same for the others 3 disks. Be sure to enter manually the remaining space. The partition must be Fixed Size

After disk, each of your disk will have 2 partitions of RAID type.

Now is the time to create a RAID filesystem.

Create and select RAID Device

  • Mount point will be /boot
  • Filesystem ext4
  • RAID device, you can leave this untouched
  • RAID Level, select RAID10
  • RAID members, check all the 500 MB partition. 4 partitions, 1 in each disk

Repeat the process for you / partition, selecting the other 4 partitions.

Save and you are ready to go.

If you get the following message: Only RAID0 arrays can contain growable members, you must recreate your RAID partition with Fixed Size.

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Asked: 2012-03-01 13:41:42 -0600

Seen: 1,259 times

Last updated: Mar 19 '12