From: Phil Turmel <philip@turmel.org>
To: "Mathias Burén" <mathias.buren@gmail.com>,
Linux-RAID <linux-raid@vger.kernel.org>
Subject: Re: Re-assemble RAID6 from SW to HW RAID
Date: Tue, 18 Nov 2014 08:34:15 -0500 [thread overview]
Message-ID: <546B4AD7.3060408@turmel.org> (raw)
In-Reply-To: <CADNH=7HeKemJvN5gNtxznZWArqe2ibBaMTMJqdfsKyYAr4EcKw@mail.gmail.com>
Hi Mathias,
On 11/17/2014 05:51 PM, Mathias Burén wrote:
> On 17 November 2014 22:14, Mathias Burén <mathias.buren@gmail.com> wrote:
>> Hi all,
>>
>> I've a 6 disk RAID6 array, with 1 missing disk. I moved 2 of the HDDs
>> from the on-board SATA controller to a LSI MegaRAID controller where I
>> created them as individual RAID0's. The data in the array isn't
>> important, but it'd be nice if I can reassemble it.
[trim /]
> It appears to have a superblock?
Take a close look at your new device sizes. The hardware raid almost
certainly shortened the devices to fit its own metadata on the end. MD
v1.2 metadata contains enough info to reject the SB if the used space
doesn't fit the device.
You should look if your MegaRAID has a 'JBOD' mode for the drives.
Regards,
Phil
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next prev parent reply other threads:[~2014-11-18 13:34 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-17 22:14 Re-assemble RAID6 from SW to HW RAID Mathias Burén
2014-11-17 22:51 ` Mathias Burén
2014-11-18 13:34 ` Phil Turmel [this message]
2014-11-18 19:09 ` Drew
2014-11-19 19:06 ` Mathias Burén
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