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From: antlists <antlists@youngman.org.uk>
To: Alexander Shenkin <al@shenkin.org>,
	Phil Turmel <philip@turmel.org>,
	Roger Heflin <rogerheflin@gmail.com>
Cc: Linux-RAID <linux-raid@vger.kernel.org>
Subject: Re: Raid-6 cannot reshape
Date: Tue, 7 Apr 2020 16:08:55 +0100	[thread overview]
Message-ID: <572ec112-21ff-7da5-81d2-a91b08277a2c@youngman.org.uk> (raw)
In-Reply-To: <61e30bc4-469f-32ed-06e8-d1b4e1fd6740@shenkin.org>

On 07/04/2020 14:19, Alexander Shenkin wrote:
> Re re-growing, I was hoping that running on a newer mdadm (4.1) might
> fix the problem, and if i still encountered it, perhaps running the
> following might unstick it:
> 
> echo frozen > /sys/block/md0/md/sync_action
> echo reshape > /sys/block/md0/md/sync_action
> 
> But, I personally have no idea what happened (really), nor why...:-(

iirc pretty much all these reports come from oldish Ubuntu systems ...

What happened *could* be that you have an updated franken-kernel, plus 
an old mdadm, and the mess needs an Igor to stitch it all together...

If you ARE going to try the grow again, I'd use an up-to-date recovery 
system to run the grow, and then reboot back in to the old Ubuntu once 
your system is back.

And seriously think about upgrading your distro to the latest LTS.

Cheers,
Wol

  reply	other threads:[~2020-04-07 15:08 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-01 10:16 Raid-6 cannot reshape Alexander Shenkin
     [not found] ` <6b9b6d37-6325-6515-f693-0ff3b641a67a@shenkin.org>
2020-04-06 15:27   ` Alexander Shenkin
2020-04-06 16:12     ` Roger Heflin
2020-04-06 16:27       ` Wols Lists
2020-04-06 20:34         ` Phil Turmel
2020-04-07 10:25           ` Alexander Shenkin
2020-04-07 11:28             ` Phil Turmel
2020-04-07 11:46               ` Alexander Shenkin
2020-04-07 12:28                 ` Phil Turmel
2020-04-07 12:31                   ` Phil Turmel
2020-04-07 13:19                     ` Alexander Shenkin
2020-04-07 15:08                       ` antlists [this message]
2020-04-07 17:04                         ` Alexander Shenkin

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