On Wed, 27 May 2015 08:04:24 -0400 (EDT) Xiao Ni <xni@xxxxxxxxxx> wrote: > > > ----- Original Message ----- > > From: "NeilBrown" <neilb@xxxxxxx> > > To: "Xiao Ni" <xni@xxxxxxxxxx> > > Cc: linux-raid@xxxxxxxxxxxxxxx > > Sent: Wednesday, May 27, 2015 7:34:49 PM > > Subject: Re: raid5 reshape is stuck > > > > On Wed, 27 May 2015 07:28:04 -0400 (EDT) Xiao Ni <xni@xxxxxxxxxx> wrote: > > > > > > > [root@intel-waimeabay-hedt-01 mdadm]# cat > > > /usr/lib/systemd/system/mdadm-grow-continue\@.service > > > # This file is part of mdadm. > > > # > > > # mdadm is free software; you can redistribute it and/or modify it > > > # under the terms of the GNU General Public License as published by > > > # the Free Software Foundation; either version 2 of the License, or > > > # (at your option) any later version. > > > > > > [Unit] > > > Description=Manage MD Reshape on /dev/%I > > > DefaultDependencies=no > > > > > > [Service] > > > ExecStart=/usr/sbin/mdadm --grow --continue /dev/%I > > > --backup-file=/root/tmp0 > > > > Please remove the ---backup-file=/root/tmp0 for further testing. The patch I > > provided should make that unnecessary. > > > > > StandardInput=null > > > StandardOutput=null > > > StandardError=null > > > > Could you try removing these - that might allow error messages to appear. > > I wonder why I included them - they shouldn't be needed. > > > > Thanks, > > NeilBrown > > > > > > [root@intel-waimeabay-hedt-01 mdadm]# mdadm -CR /dev/md0 -l5 -n4 /dev/loop[0-3] --assume-clean > mdadm: /dev/loop0 appears to be part of a raid array: > level=raid5 devices=5 ctime=Wed May 27 02:45:08 2015 > mdadm: /dev/loop1 appears to be part of a raid array: > level=raid5 devices=5 ctime=Wed May 27 02:45:08 2015 > mdadm: /dev/loop2 appears to be part of a raid array: > level=raid5 devices=5 ctime=Wed May 27 02:45:08 2015 > mdadm: /dev/loop3 appears to be part of a raid array: > level=raid5 devices=5 ctime=Wed May 27 02:45:08 2015 > mdadm: Defaulting to version 1.2 metadata > mdadm: array /dev/md0 started. > [root@intel-waimeabay-hedt-01 mdadm]# mdadm /dev/md0 -a /dev/loop4 > mdadm: added /dev/loop4 > [root@intel-waimeabay-hedt-01 mdadm]# mdadm --grow /dev/md0 --raid-devices=5 > mdadm: Need to backup 6144K of critical section.. > [root@intel-waimeabay-hedt-01 mdadm]# cat /proc/mdstat > Personalities : [raid6] [raid5] [raid4] > md0 : active raid5 loop4[4] loop3[3] loop2[2] loop1[1] loop0[0] > 1532928 blocks super 1.2 level 5, 512k chunk, algorithm 2 [5/5] [UUUUU] > [>....................] reshape = 0.0% (0/510976) finish=532.2min speed=0K/sec > > unused devices: <none> > [root@intel-waimeabay-hedt-01 mdadm]# cat /usr/lib/systemd/system/mdadm-grow-continue\@.service > # This file is part of mdadm. > # > # mdadm is free software; you can redistribute it and/or modify it > # under the terms of the GNU General Public License as published by > # the Free Software Foundation; either version 2 of the License, or > # (at your option) any later version. > > [Unit] > Description=Manage MD Reshape on /dev/%I > DefaultDependencies=no > > [Service] > ExecStart=/usr/sbin/mdadm --grow --continue /dev/%I > #StandardInput=null > #StandardOutput=null > #StandardError=null > KillMode=none > > > The problem still exist. And there are messages in /var/log/messages > > May 27 08:03:29 intel-waimeabay-hedt-01 systemd: mdadm-grow-continue@md0.service: main process exited, code=exited, status=1/FAILURE > May 27 08:03:29 intel-waimeabay-hedt-01 systemd: Unit mdadm-grow-continue@md0.service entered failed state. > Does systemctl status -l mdadm-grow-continue@md0.service report anything different. That was the result I expected from removing the Standard*=null lines. I assume the new mdadm is installed in /usr/sbin/mdadm. Thanks, NeilBrown
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