I have some issues with keeping a RAID setup across restarts.
Here is my setup:
Hard disk drives:
/dev/sdc /dev/sdd /dev/sde
/dev/md/Data_RAID (Level 0)
/dev/md/Data (Level 1)
The issue appears after rebooting the computer:
There are now two arrays instead of one:
Instead of /dev/md/Data containing:
There are two RAID 1 arrays:
Removed component sde1
/dev/md/Data_RAID Removed component
It's as if each component has formed one array by itself, "expecting" the other to join.
To form the originally created array again, I need to stop one of these two arrays, and add its component to the other, running, array (afterwhich it synchronizes).
I added all of the present arrays in /etc/mdadm.conf
I would like to note that /dev/sde is a hard disk drive, which is attached via USB 3.
I have read the wiki article on RAID, especially the section on assembling arrays on boot, but I had already done what is described there (and throughout the article). I have also read on some Ubuntu website, stating that in order to create a neste array, I need to created with a certain switch (I forgot which); but this is for Ubuntu.
I have also followed up on mdadm nested arrays, but the poster's workaround did not work in my case.
So, how can I make the system "remember" the array configuration after restarting, particularly this array?
I can provide more specific details, such as command output, the exact commands I have used, if one demands.
Last edited by AGT (2013-01-27 18:27:58)