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mdadm --fail and superblock

Linux Kernel, Network, and Services configuration.
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ctrl
Posts: 5
Joined: 2012-09-15 18:56

mdadm --fail and superblock

#1 Post by ctrl »

Hi, I was wondering what happens to the superblock of a disk manually failed and removed with mdadm. Does that prevent the disk to be used again as a valid member? I mean: if I move the failed HDD to another system, would I be theoretically able to rebuild an array starting from it? Like a bizarre and dangerous way of cloning the array...

p.H
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Re: mdadm --fail and superblock

#2 Post by p.H »

ctrl wrote: what happens to the superblock of a disk manually failed and removed with mdadm.
Nothing. Only the superblocks of the remaining members are updated.
ctrl wrote:if I move the failed HDD to another system, would I be theoretically able to rebuild an array starting from it?
Yes, if it is RAID 1.

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