MD Raid State

If IPFire is installed on a raid array then the following status should be seen

This shows that the array is a raid1 array named md127 and made up of two devices, sda and sdb

The "Personalities" line tells you what RAID level the kernel currently supports. In the case of IPFire it only supports Raid1 currently.

The next line means we're looking at the device /dev/md127.
It is active or 'started'. An inactive array is usually faulty.
It is a raid1 array and the component devices are:

/dev/sda which is device 0
/dev/sdb which is device 1

[UU] represents the status of each device, either U for Up or _ for Down, so the above status shows that both devices are up and working as a Raid1 array. If [U_] or [_U] is shown then action needs to be taken to fix the faulty drive.

Any actions on the raid array will have to be carried out from the console command line. See the mdadm help command below.

help command

[root@ipfireAPU ~]# mdadm --help
mdadm is used for building, managing, and monitoring
Linux md devices (aka RAID arrays)
Usage: mdadm --create device options...
            Create a new array from unused devices.
       mdadm --assemble device options...
            Assemble a previously created array.
       mdadm --build device options...
. . .
 For detailed help on the above major modes use --help after the mode
 e.g.
         mdadm --assemble --help
 For general help on options use
         mdadm --help-options

Note

If IPFire is not installed on a raid array then the status page will show:

To have IPFire running on a raid array this has to be defined in the installation step.
See the Raid Array section in Step3: Run the installer

MD Raid State

help command

Note

Links