From mboxrd@z Thu Jan 1 00:00:00 1970 From: "David C. Rankin" Subject: Re: raid role number off on one array? Date: Fri, 11 Sep 2015 10:21:51 -0500 Message-ID: <55F2F18F.4060700@suddenlinkmail.com> References: <55F249DB.5010908@suddenlinkmail.com> <55F2DD22.3030406@turmel.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <55F2DD22.3030406@turmel.org> Sender: linux-raid-owner@vger.kernel.org To: mdraid List-Id: linux-raid.ids On 09/11/2015 08:54 AM, Phil Turmel wrote: > /proc/mdstat doesn't show role numbers. It shows slot numbers. Slot > numbers are the indices into the role number tracking tables in the > superblock. They happen to match role numbers on a freshly-created > array simply because the slots are allocated starting from zero, just > like the roles. As you add and remove devices, the slot numbers and > role numbers may no longer match. Ah hah! That was the piece of the puzzle I was missing. Thanks you. I guess I'm just a bit overly concerned about making sure I understand everything I'm seeing with my arrays. After having used mdadm for roughly a decade without a single loss, then having that little "no attempt to activate sda7 Oops", I just want to do what I can to avoid a repeat :-) -- David C. Rankin, J.D.,P.E.