On Thu, 28 Jan 2010 13:59:39 +0100
Michał Sawicz [off-list ref] wrote:

Dnia 2010-01-28, czw o godzinie 13:09 +0100, Michał Sawicz pisze:

quoted

Where does this 'failed' come from? Oh, and it's like that on all
members. Is my array safe as /proc/mdstat says? 

Hmm I think it might be related to this:

quoted

# mdadm -E /dev/sdb1
[...]
    Array Slot : 6 (0, failed, 2, 3, 1, 5, 4)
   Array State : uuuuUu 1 failed

One of the disks in this array was swapped, maybe this is what this info
records? How can I get rid of that?

The device that was the second device added to the array failed (or
disappeared), and this fact is recorded in case that device ever reappears...

Yes, this is confusing.  mdadm-3.x report the array state differently.

NeilBrown
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