From mboxrd@z Thu Jan  1 00:00:00 1970
From: Wols Lists <antlists@youngman.org.uk>
Subject: Re: Issue with growing RAID10
Date: Wed, 2 Nov 2016 18:09:24 +0000
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To: Robert LeBlanc <robert@leblancnet.us>, linux-raid@vger.kernel.org
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On 02/11/16 17:59, Robert LeBlanc wrote:
> We would like to add read performance to our RAID10 volume by adding
> another drive (we don't care about space), so I did the following test
> with poor results.

Quicky reply ...

I don't think you can change the number of raid-devices on a raid10. Are
you trying to replace a slow drive with a faster one? You can probably
use the --replace option.

If not that, what do you want to achieve?

Cheers,
Wol