From mboxrd@z Thu Jan 1 00:00:00 1970 From: "David C. Rankin" Subject: mdstat reporting (superblock & status side-by-side). Can it be changed ? Date: Sun, 13 Sep 2015 12:58:25 -0500 Message-ID: <55F5B941.8050107@suddenlinkmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Sender: linux-raid-owner@vger.kernel.org To: mdraid List-Id: linux-raid.ids All, After looking at the output of /proc/mdstat many times, there is one 'human factors' (human nature) bit of difficulty with the order of the output (especially with a standard 2-disk raid1 array and 1.2 superblock: md1 : active raid1 sda7[2] sdb7[1] 52396032 blocks super 1.2 [2/2] [UU] ^^^^^^^^^ When scanning the information quickly to insure you do NOT have 1/2 disks active in the array, you run into the version and disk information side-by-side. "1.2 [2/2]" Which naturally causes a short "huh?..., OK" double-take. Is there any way from a user standpoint (short of "read a b c d e f"; echo "$c $d $a $b $e $f"), to rearrange the order the information is reported as: md1 : active raid1 sda7[2] sdb7[1] super 1.2 52396032 blocks [2/2] [UU] That simple change makes glancing down the right-side of the information much easier on the brain.... I don't think this was ever a concern prior to the 1.2 superbock and I'm not sure it warrants any brainpower now. However, it was something that stood out to me, so I thought I would pass it along. -- David C. Rankin, J.D.,P.E.