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On Sat, 01 Mar 2014 00:08:30 -0500 Phillip Susi [off-list ref] wrote:

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On 04/03/2012 01:53 AM, NeilBrown wrote:

quoted

The following patches are now in my queue for 3.5. (I may add some
more, but to avoid patch-bombing I sending these now as I think
they are ready).

This is all about reshaping arrays and particularly RAID10.

I was wondering what the current status of this patch set is?  It
looks like this patch did get merged into the kernel, but mdadm does
not yet support reshaping raid10?  Does that mean that adding a drive
to a raid10 can be done by manually fiddling with sysfs?

Why do you think mdadm doesn't yet support reshaping raid10?

commit 19ceb16dafb7df98ff90298008d4488dc93b370a
Author: NeilBrown [off-list ref]
Date:   Thu Oct 4 16:34:21 2012 +1000

    Grow: add raid10 reshape.
 

$ git describe --contains 19ceb16dafb7df98ff90298008d4488dc93b370a
mdadm-3.3-rc1~192


So mdadm-3.3 and later should do what you want.

NeilBrown
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