From: Peter Rabbitson <rabbit+list@rabbit.us>
To: "Keld Jørn Simonsen" <keld@dkuug.dk>
Cc: Michael Tokarev <mjt@tls.msk.ru>,
Moshe Yudkowsky <moshe@pobox.com>,
linux-raid@vger.kernel.org
Subject: Re: In this partition scheme, grub does not find md information?
Date: Wed, 30 Jan 2008 16:35:27 +0100 [thread overview]
Message-ID: <47A0993F.8000005@rabbit.us> (raw)
In-Reply-To: <20080130152156.GA22131@rap.rap.dk>
Keld Jørn Simonsen wrote:
> On Wed, Jan 30, 2008 at 03:47:30PM +0100, Peter Rabbitson wrote:
>> Michael Tokarev wrote:
>>
>>> With 5-drive linux raid10:
>>>
>>> A B C D E
>>> 0 0 1 1 2
>>> 2 3 3 4 4
>>> 5 5 6 6 7
>>> 7 8 8 9 9
>>> 10 10 11 11 12
>>> ...
>>>
>>> A&B can't be removed - 0, 5. A&C CAN be removed, as
>>> are A&D. But not A&E - losing 2 and 7. And so on.
>
> I see. Does the kernel code allow this? And mdadm?
>
> And can B+E be removed safely, and C+E and B+D?
>
It seems like it. I just created the above raid configuration with 5 loop
devices. Everything behaved just like Michael described. When the wrong drives
disappeared - I started getting IO errors.
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next prev parent reply other threads:[~2008-01-30 15:35 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-29 4:44 In this partition scheme, grub does not find md information? Moshe Yudkowsky
2008-01-29 5:08 ` Neil Brown
2008-01-29 11:02 ` Moshe Yudkowsky
2008-01-29 11:14 ` Peter Rabbitson
2008-01-29 11:29 ` Moshe Yudkowsky
2008-01-29 14:09 ` Michael Tokarev
2008-01-29 14:07 ` Michael Tokarev
2008-01-29 14:47 ` Peter Rabbitson
2008-01-29 15:13 ` Michael Tokarev
2008-01-29 15:41 ` Peter Rabbitson
2008-01-29 16:51 ` Michael Tokarev
2008-01-29 17:51 ` Keld Jørn Simonsen
2008-01-29 16:16 ` Moshe Yudkowsky
2008-01-29 16:34 ` Peter Rabbitson
2008-01-29 19:34 ` Moshe Yudkowsky
2008-01-29 20:21 ` Keld Jørn Simonsen
2008-01-29 22:14 ` Moshe Yudkowsky
2008-01-29 23:45 ` Bill Davidsen
2008-01-30 0:13 ` Moshe Yudkowsky
2008-01-30 22:36 ` Bill Davidsen
2008-01-30 0:17 ` Keld Jørn Simonsen
2008-01-29 23:44 ` Bill Davidsen
2008-01-30 0:22 ` Keld Jørn Simonsen
2008-01-30 0:26 ` Peter Rabbitson
2008-01-30 22:39 ` Bill Davidsen
2008-01-30 0:32 ` Moshe Yudkowsky
2008-01-30 0:53 ` Keld Jørn Simonsen
2008-01-30 1:00 ` Moshe Yudkowsky
2008-01-31 14:40 ` Bill Davidsen
2008-01-30 13:11 ` Michael Tokarev
2008-01-30 14:10 ` Moshe Yudkowsky
2008-01-30 14:41 ` Michael Tokarev
2008-01-31 14:59 ` Bill Davidsen
2008-02-02 20:17 ` Bill Davidsen
2008-01-30 12:01 ` Peter Rabbitson
2008-01-29 16:42 ` Michael Tokarev
2008-01-29 16:26 ` Keld Jørn Simonsen
2008-01-29 16:46 ` Michael Tokarev
2008-01-29 18:01 ` Keld Jørn Simonsen
2008-01-30 13:37 ` Michael Tokarev
2008-01-30 14:47 ` Peter Rabbitson
2008-01-30 15:21 ` Keld Jørn Simonsen
2008-01-30 15:35 ` Peter Rabbitson [this message]
2008-01-30 15:46 ` Loop devices to RAID? (was Re: In this partition scheme, grub does not find md information?) Moshe Yudkowsky
2008-01-30 15:56 ` Tim Southerwood
2008-01-29 15:57 ` In this partition scheme, grub does not find md information? Moshe Yudkowsky
2008-01-29 16:37 ` Keld Jørn Simonsen
2008-01-29 16:57 ` Michael Tokarev
2008-01-30 11:03 ` David Greaves
2008-01-30 11:44 ` Moshe Yudkowsky
2008-01-30 12:00 ` WRONG INFO (was Re: In this partition scheme, grub does not find md information?) Peter Rabbitson
2008-01-30 12:41 ` David Greaves
2008-01-30 13:39 ` Michael Tokarev
2008-02-04 16:49 ` In this partition scheme, grub does not find md information? John Stoffel
2008-02-04 17:26 ` Michael Tokarev
2008-01-30 11:03 ` David Greaves
2008-01-29 14:48 ` Keld Jørn Simonsen
2008-01-29 16:00 ` Moshe Yudkowsky
2008-01-29 16:25 ` Peter Rabbitson
2008-01-29 14:04 ` Keld Jørn Simonsen
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