From: Martin Wilck <mwilck@arcor.de>
To: Francis Moreau <francis.moro@gmail.com>,
linux-raid <linux-raid@vger.kernel.org>
Subject: Re: mdadm 3.3 fails to kick out non fresh disk
Date: Sat, 14 Sep 2013 22:43:22 +0200 [thread overview]
Message-ID: <5234CA6A.3070305@arcor.de> (raw)
In-Reply-To: <CAC9WiBja2N_Q8h6MSci+fgRWWpvvRpcMZp8FOZX3V_FK8pjhpA@mail.gmail.com>
On 09/14/2013 05:06 PM, Francis Moreau wrote:
> Martin,
>
> On Sat, Sep 14, 2013 at 4:33 PM, Francis Moreau <francis.moro@gmail.com> wrote:
>> On Sat, Sep 14, 2013 at 12:38 PM, NeilBrown <neilb@suse.de> wrote:
>>> On Sat, 14 Sep 2013 00:35:47 +0200 Francis Moreau <francis.moro@gmail.com>
>>> wrote:
>
> [...]
>
>>>
>>> BTW I think I've fixed the issue with mdadm -R /dev/md125 for DDF.
>>> Try the latest git.
>>
>> It seems it fixes the issue: mdmon is now correctly started with a
>> degraded DDF array.
>>
>> However, after using the system with only one disk (sda), sdb is now
>> outdated. I rebooted the system with 2 disks but mdadm doesn't seem to
>> notice that sdb is outdated:
>>
>> # mdadm -I /dev/sda
>> mdadm: container /dev/md/ddf0 now has 1 device
>> mdadm: /dev/md/array1_0 assembled with 1 device but not started
>> # mdadm -I /dev/sdb
>> mdadm: container /dev/md/ddf0 now has 2 devices
>> mdadm: Started /dev/md/array1_0 with 2 devices (1 new)
>> # cat /proc/mdstat
>> Personalities : [raid1]
>> md126 : active (auto-read-only) raid1 sdb[1] sda[0]
>> 2064384 blocks super external:/md127/0 [2/2] [UU]
>>
>> md127 : inactive sdb[1](S) sda[0](S)
>> 65536 blocks super external:ddf
>>
>> So this time mdadm fails to kick out non fresh disk (when using '-I')
>> but with DDF.
>>
>
> Maybe you have an idea on why mdadm doesn't notice that sdb is
> outdated in that case (DDF) ?
It's a bug. I am sending a patch soon. Thanks a lot.
Martin
>
> Thanks
next prev parent reply other threads:[~2013-09-14 20:43 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-13 13:22 mdadm 3.3 fails to kick out non fresh disk Francis Moreau
2013-09-13 20:43 ` NeilBrown
2013-09-13 22:35 ` Francis Moreau
2013-09-13 23:56 ` Roberto Spadim
2013-09-14 10:38 ` NeilBrown
2013-09-14 14:33 ` Francis Moreau
2013-09-14 15:06 ` Francis Moreau
2013-09-14 20:43 ` Martin Wilck [this message]
2013-09-16 13:56 ` Francis Moreau
2013-09-16 17:04 ` Martin Wilck
2013-09-20 8:56 ` Francis Moreau
2013-09-20 18:07 ` Martin Wilck
2013-09-20 21:08 ` Francis Moreau
2013-09-21 13:22 ` Francis Moreau
2013-09-23 20:02 ` Martin Wilck
2013-09-27 8:26 ` Francis Moreau
2013-09-27 15:47 ` Francis Moreau
2013-10-02 18:33 ` Martin Wilck
2013-10-16 4:57 ` NeilBrown
2013-10-16 20:10 ` Francis Moreau
2013-10-17 10:58 ` NeilBrown
2013-10-19 20:21 ` Martin Wilck
2013-10-20 23:59 ` NeilBrown
2013-09-24 17:38 ` Martin Wilck
2013-09-24 17:43 ` Martin Wilck
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