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Date:      Tue, 31 Mar 2009 15:41:31 +0200
From:      Ivan Voras <ivoras@freebsd.org>
To:        freebsd-questions@freebsd.org
Subject:   Re: Recovering a GEOM RAID0 array
Message-ID:  <gqt6ib$q6c$1@ger.gmane.org>
In-Reply-To: <d0626390903310621p5e6e71a9n38ec5b81f5780585@mail.gmail.com>
References:  <d0626390903301221o701f762ao18269ae6e212affa@mail.gmail.com>	<gqt0rm$64m$1@ger.gmane.org>	<d0626390903310522w67f09292t5148334ee3cd2a2d@mail.gmail.com>	<gqt3ei$f77$1@ger.gmane.org> <d0626390903310621p5e6e71a9n38ec5b81f5780585@mail.gmail.com>
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[-- Attachment #1 --]
Juan Miscaro wrote:

>> What does "gstripe list" say? What does "sysctl -b kern.geom.confxml" say?
> 
> 'gstripe list' does not return any output at all.
> 
> Output to the sysctl command is attached.

"gstripe list" cannot output nothing, since the sysctl output you posted
says a partial GEOM_STRIPE instance is present on the system.

This is bad:

    <geom id="0xc3065300">
      <class ref="0xc0978f60"/>
      <name>ad3c</name>
      <rank>3</rank>
        <consumer id="0xc30698c0">
          <geom ref="0xc3065300"/>
          <provider ref="0xc2e6fd80"/>
          <mode>r0w0e0</mode>
        </consumer>
    </geom>
    <geom id="0xc3032a00">
      <class ref="0xc0978f60"/>
      <name>ad3a</name>
      <rank>3</rank>
        <consumer id="0xc2fde5c0">
          <geom ref="0xc3032a00"/>
          <provider ref="0xc2e6fc80"/>
          <mode>r0w0e0</mode>
        </consumer>
    </geom>
    <geom id="0xc3032d00">
      <class ref="0xc0978f60"/>
      <name>ad3s1</name>
      <rank>3</rank>
        <consumer id="0xc2fdea00">
          <geom ref="0xc3032d00"/>
          <provider ref="0xc2e6fa00"/>
          <mode>r0w0e0</mode>
        </consumer>
    </geom>

It looks like you created a both a fdisk partition table and a bsdlabel
partition table on the ad3 drive. If so, your data is probably already
corrupted.

ad1 is also strangely partitioned but since it's your first drive in a
stripe this can be acceptable (it will contain the first sectors of the
array, including its partition tables).

> # gstripe dump ad3
> Can't read metadata from ad3: Invalid argument.
> Not fully done.

This can happen if the metadata on ad3 is corrupted. You'll need to dump
the last sector and inspect it to verify.


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