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Date: Tue, 31 Mar 2009 10:21:33 -0400
Message-ID: <d0626390903310721u21971567k99c94b01e0d57fe4@mail.gmail.com>
From: Juan Miscaro <jmiscaro@gmail.com>
To: Ivan Voras <ivoras@freebsd.org>
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Cc: freebsd-questions@freebsd.org
Subject: Re: Recovering a GEOM RAID0 array
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2009/3/31 Ivan Voras <ivoras@freebsd.org>:
> Juan Miscaro wrote:
>
>>> What does "gstripe list" say? What does "sysctl -b kern.geom.confxml" s=
ay?
>>
>> '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.

There *really is* no output to the 'gstripe list' command.

> This is bad:
>
> =C2=A0 =C2=A0<geom id=3D"0xc3065300">
> =C2=A0 =C2=A0 =C2=A0<class ref=3D"0xc0978f60"/>
> =C2=A0 =C2=A0 =C2=A0<name>ad3c</name>
> =C2=A0 =C2=A0 =C2=A0<rank>3</rank>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0<consumer id=3D"0xc30698c0">
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0<geom ref=3D"0xc3065300"/>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0<provider ref=3D"0xc2e6fd80"/>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0<mode>r0w0e0</mode>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0</consumer>
> =C2=A0 =C2=A0</geom>
> =C2=A0 =C2=A0<geom id=3D"0xc3032a00">
> =C2=A0 =C2=A0 =C2=A0<class ref=3D"0xc0978f60"/>
> =C2=A0 =C2=A0 =C2=A0<name>ad3a</name>
> =C2=A0 =C2=A0 =C2=A0<rank>3</rank>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0<consumer id=3D"0xc2fde5c0">
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0<geom ref=3D"0xc3032a00"/>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0<provider ref=3D"0xc2e6fc80"/>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0<mode>r0w0e0</mode>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0</consumer>
> =C2=A0 =C2=A0</geom>
> =C2=A0 =C2=A0<geom id=3D"0xc3032d00">
> =C2=A0 =C2=A0 =C2=A0<class ref=3D"0xc0978f60"/>
> =C2=A0 =C2=A0 =C2=A0<name>ad3s1</name>
> =C2=A0 =C2=A0 =C2=A0<rank>3</rank>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0<consumer id=3D"0xc2fdea00">
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0<geom ref=3D"0xc3032d00"/>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0<provider ref=3D"0xc2e6fa00"/>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0<mode>r0w0e0</mode>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0</consumer>
> =C2=A0 =C2=A0</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.

What is a generic configuration?  Or can you explain how you come to
that conclusion?

> 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.

I've never done that before.  Can you be explicit?

--
jm