From: John Robinson <john.robinson@anonymous.org.uk>
To: "\"Günther J. Niederwimmer\"" <gjn@gjn.priv.at>
Cc: linux-raid@vger.kernel.org
Subject: Re: Hello,Re: GPT Table broken on a Raid1
Date: Tue, 25 Sep 2012 10:28:34 +0100 [thread overview]
Message-ID: <50617942.4070707@anonymous.org.uk> (raw)
In-Reply-To: <5231765.ZMIFzBOKSc@techz>
On 25/09/2012 09:27, Günther J. Niederwimmer wrote:
> Am Montag, 24. September 2012, 15:12:22 schrieb Chris Murphy:
>> On Sep 24, 2012, at 3:06 PM, Günther J. Niederwimmer wrote:
[...]
>>> Question: Why create mdadm also a md127, I found this now ?
>>
>> Kernel is mapping /dev/md/Volume0 to /dev/md126. It's doing the same on my
>> system, although it's using md126. Not sure if that's controllable or not.
>> Maybe someone else can answer it.
>
> No Problem, but i tell it to you, for me it is mystery. ;)
It's the way IMSM works. You have md127 which is a "container",
essentially spanning all the discs concerned. That container holds one
or more RAID sets. You have md126 aka Volume0 as a RAID-1 set that fills
the container, but you could have more than one RAID set, e.g. you could
have a RAID-1 as md126 and a RAID-10 as md125.
Cheers,
John.
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next prev parent reply other threads:[~2012-09-25 9:28 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-19 11:03 GPT Table broken on a Raid1 Günther J. Niederwimmer
2012-09-20 2:39 ` Chris Murphy
2012-09-20 11:05 ` Günther J. Niederwimmer
2012-09-20 17:34 ` Chris Murphy
2012-09-21 11:42 ` Günther J. Niederwimmer
2012-09-21 19:35 ` Chris Murphy
2012-09-21 22:43 ` Chris Murphy
2012-09-22 8:37 ` Günther J. Niederwimmer
2012-09-22 18:30 ` Chris Murphy
2012-09-23 6:47 ` Hello,Re: " Günther J. Niederwimmer
2012-09-23 7:17 ` Chris Murphy
2012-09-24 7:28 ` Günther J. Niederwimmer
2012-09-24 17:21 ` Chris Murphy
2012-09-24 19:06 ` Günther J. Niederwimmer
2012-09-24 20:18 ` Chris Murphy
2012-09-24 21:06 ` Günther J. Niederwimmer
2012-09-24 21:12 ` Chris Murphy
2012-09-25 8:27 ` Günther J. Niederwimmer
2012-09-25 9:28 ` John Robinson [this message]
2012-09-25 16:55 ` Chris Murphy
2012-09-26 12:17 ` Günther J. Niederwimmer
2012-09-26 19:33 ` Chris Murphy
2012-09-27 2:43 ` NeilBrown
2012-09-22 15:31 ` John Robinson
2012-09-22 18:45 ` Chris Murphy
2012-09-22 21:58 ` NeilBrown
2012-09-22 22:07 ` John Robinson
2012-09-22 22:30 ` Chris Murphy
2012-09-23 12:00 ` John Robinson
2012-09-23 17:44 ` Chris Murphy
2012-09-23 18:53 ` Chris Murphy
2012-09-24 9:37 ` John Robinson
2012-09-24 17:35 ` Chris Murphy
2012-09-24 18:17 ` Roberto Spadim
[not found] ` <CABYL=ToFtzXv95At54=jSCaD0QVSB+bdxbssda1AMw5gNBqvhg@mail.gmail.com>
2012-09-24 18:55 ` Chris Murphy
2012-09-25 7:33 ` Miquel van Smoorenburg
2012-09-21 21:30 ` Chris Murphy
2012-09-21 21:49 ` Chris Murphy
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