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Content-Language: en-US To: rm@romanrm.net Cc: linux-raid@vger.kernel.org References: <20250129212929.6449db3b@nvm> From: pgnd In-Reply-To: <20250129212929.6449db3b@nvm> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit >> what's incorrect/missing in that procedure? how do i get the full partitions to be used by the array? > > Did you try without specifying "--raid-devices" there? yep. different error mdadm --grow /dev/md2 --raid-devices=4 --size=max --force Change size first, then check data is intact before making other changes. mdadm --grow /dev/md2 --size=max --force mdadm: Cannot set device size for /dev/md2: Invalid argument