Re: *very* ugly mdadm issue

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On 09/04/2014 01:35 PM, Les Mikesell wrote:
On Thu, Sep 4, 2014 at 9:59 AM, Lamar Owen <lowen@xxxxxxxx> wrote:
.. (The 1.2 superblock
goes 4K in from the first sector; prior to 1.1 the superblock went to the
last sector of the drive).
Does that mean autodetection/assembly would be possible with 1.2 but
not 1.1?  I've always considered that to be one of the best features
of software raid.

Don't know.  Try it and let us know.....


Of course, ext4 at least for block group 0 skips the first 1k bytes.....
How does this mesh with the ability to mount a RAID1 member as a
normal non-raid partition?   I've done that for data recovery but
never knew if it was safe to write that way.

Good question; try it and let us know.  I have never tried it.

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