Re: Creating RAID5 with four devices and end up with 5 (one removed and one spare). Why?

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Mario 'BitKoenig' Holbe wrote:
Tor Arne Vestbø <torarnv@xxxxxxxxx> wrote:
But does that explain why mdadm believes I have another disk, a fifth disk, that has been removed? The ID numbers of the real disks are 0,1,2,4 but I would expect 0,1,2,3:

Once the rebuild has finished, you will have exactly the latter.
md stores raid-disks in different slots than not-yet-raid-disks.

Of course, you were right :) I waited for the array to sync, and what do you know! My 0,1,2,3,4 one failure, one spare array turned into a 0,1,2,3 clean everything fine array :P

Thanks!

Tor Arne
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