Recovering a GEOM RAID0 array
Juan Miscaro
jmiscaro at gmail.com
Tue Mar 31 06:21:39 PDT 2009
2009/3/31 Ivan Voras <ivoras at freebsd.org>:
> Juan Miscaro wrote:
>
>> This is the end of dmesg (the drives in question are ad1 and ad3):
>
>> GEOM_STRIPE: Device st0 created (id=3091204740).
>> GEOM_STRIPE: Disk ad1 attached to st0.
>> GEOM_STRIPE: Disk ad1 removed from st0.
>> GEOM_STRIPE: Device st0 destroyed.
>> GEOM_STRIPE: Device st0 created (id=3091204740).
>> GEOM_STRIPE: Disk ad1 attached to st0.
>
> Firstly, as you can see ad3 is never added. This can mean several
> things, of which the most probable is that its metadata has been
> destroyed. The messages after the second message is probably due to you
> opening the drives manually, bypassing gstripe, probably with the
> following commands.
>
>> # bsdlabel ad1
>>
>> # /dev/ad1:
>> 8 partitions:
>> # size offset fstype [fsize bsize bps/cpg]
>> a: 1250280640 16 4.2BSD 2048 16384 28552
>> c: 1250280656 0 unused 0 0 # "raw"
>> part, don't edit
>> partition a: partition extends past end of unit
>> partition c: partition extends past end of unit
>> bsdlabel: partition c doesn't cover the whole unit!
>> bsdlabel: An incorrect partition c may cause problems for standard
>> system utilities
>>
>> # bsdlabel ad3
>>
>> # /dev/ad3:
>> 8 partitions:
>> # size offset fstype [fsize bsize bps/cpg]
>> a: 625142432 16 4.2BSD 2048 16384 28552
>> c: 625142448 0 unused 0 0 # "raw" part,
>> don't edit
>>
>> These drives should appear to be identical.
>
> This is the wrong way to inspect your drives. If you did anything to the
> drives individually (i.e. bypassing gstripe) it's very likely you
> corrupted some data. I don't know if this is obvious to you so I'm
> saying it just in case. Inspect your drives with "diskinfo -v" to get
> information such as its size.
Good to know. Thanks.
# diskinfo -v ad3
ad3
512 # sectorsize
320072933376 # mediasize in bytes (298G)
625142448 # mediasize in sectors
620181 # Cylinders according to firmware.
16 # Heads according to firmware.
63 # Sectors according to firmware.
# diskinfo -v ad1
ad1
512 # sectorsize
320071851520 # mediasize in bytes (298G)
625140335 # mediasize in sectors
620178 # Cylinders according to firmware.
16 # Heads according to firmware.
63 # Sectors according to firmware.
> 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.
> If "gstripe list" doesn't mention ad3, you need to establish what
> happened to metadata on ad3. Try extracting the last sector from ad3 by
> hand (using dd) into a file and inspect it (send output of "hd filename").
See other post.
--
jm
-------------- next part --------------
<mesh>
<class id="0xc4f47900">
<name>STRIPE</name>
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<name>st0</name>
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<config>
<ID>3091204740</ID>
<Stripesize>4096</Stripesize>
<Type>AUTOMATIC</Type>
<Status>Total=2, Online=1</Status>
<State>DOWN</State>
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<fwsectors>63</fwsectors>
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<fwsectors>63</fwsectors>
</config>
</provider>
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<name>ad3</name>
<rank>1</rank>
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<sectorsize>512</sectorsize>
<config>
<fwheads>16</fwheads>
<fwsectors>63</fwsectors>
</config>
</provider>
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<geom ref="0xc3031a00"/>
<mode>r0w0e0</mode>
<name>ad1</name>
<mediasize>320071851520</mediasize>
<sectorsize>512</sectorsize>
<config>
<fwheads>16</fwheads>
<fwsectors>63</fwsectors>
</config>
</provider>
</geom>
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<mode>r0w0e0</mode>
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<rank>4</rank>
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<provider ref="0xc306ab00"/>
<mode>r0w0e0</mode>
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<geom id="0xc3078100">
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<name>ad4s1d</name>
<rank>4</rank>
<consumer id="0xc307a680">
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<provider ref="0xc306ac00"/>
<mode>r0w0e0</mode>
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<name>ad4s1c</name>
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<consumer id="0xc305fc80">
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<mode>r0w0e0</mode>
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<name>ad4s1b</name>
<rank>4</rank>
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<provider ref="0xc306ae00"/>
<mode>r0w0e0</mode>
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<provider ref="0xc3078000"/>
<mode>r0w0e0</mode>
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<class ref="0xc0978f60"/>
<name>ad4s1</name>
<rank>3</rank>
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<mode>r0w0e0</mode>
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<name>ad4</name>
<rank>2</rank>
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<name>ad1cs1</name>
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<name>ad1ag</name>
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<mode>r0w0e0</mode>
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<geom ref="0xc3066400"/>
<provider ref="0xc3065680"/>
<mode>r0w0e0</mode>
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<class ref="0xc0978f60"/>
<name>ad1ae</name>
<rank>4</rank>
<consumer id="0xc3069280">
<geom ref="0xc3066700"/>
<provider ref="0xc3065780"/>
<mode>r0w0e0</mode>
</consumer>
</geom>
<geom id="0xc3066a00">
<class ref="0xc0978f60"/>
<name>ad1ad</name>
<rank>4</rank>
<consumer id="0xc30693c0">
<geom ref="0xc3066a00"/>
<provider ref="0xc3065880"/>
<mode>r0w0e0</mode>
</consumer>
</geom>
<geom id="0xc3066d00">
<class ref="0xc0978f60"/>
<name>ad1ac</name>
<rank>4</rank>
<consumer id="0xc3069500">
<geom ref="0xc3066d00"/>
<provider ref="0xc3065980"/>
<mode>r0w0e0</mode>
</consumer>
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<class ref="0xc0978f60"/>
<name>ad1ab</name>
<rank>4</rank>
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<rank>4</rank>
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</consumer>
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<geom id="0xc3065300">
<class ref="0xc0978f60"/>
<name>ad3c</name>
<rank>3</rank>
<consumer id="0xc30698c0">
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<mode>r0w0e0</mode>
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<name>ad3a</name>
<rank>3</rank>
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<name>ad3s1</name>
<rank>3</rank>
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<provider ref="0xc2e6fa00"/>
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<rank>3</rank>
<consumer id="0xc2fde880">
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<provider ref="0xc3032180"/>
<mode>r0w0e0</mode>
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<class ref="0xc0978f60"/>
<name>ad1a</name>
<rank>3</rank>
<consumer id="0xc2fde9c0">
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<provider ref="0xc3031a80"/>
<mode>r0w0e0</mode>
</consumer>
</geom>
<geom id="0xc3066180">
<class ref="0xc0978f60"/>
<name>ad1s1</name>
<rank>3</rank>
<consumer id="0xc2fdeb00">
<geom ref="0xc3066180"/>
<provider ref="0xc3031380"/>
<mode>r0w0e0</mode>
</consumer>
</geom>
<geom id="0xc2e6f600">
<class ref="0xc0978f60"/>
<name>ad3</name>
<rank>2</rank>
<consumer id="0xc305f100">
<geom ref="0xc2e6f600"/>
<provider ref="0xc3031800"/>
<mode>r0w0e0</mode>
</consumer>
</geom>
<geom id="0xc3031500">
<class ref="0xc0978f60"/>
<name>ad1</name>
<rank>2</rank>
<consumer id="0xc305f240">
<geom ref="0xc3031500"/>
<provider ref="0xc3031980"/>
<mode>r0w0e0</mode>
</consumer>
</geom>
<geom id="0xc3031d80">
<class ref="0xc0978f60"/>
<name>acd0</name>
<rank>2</rank>
<consumer id="0xc305f740">
<geom ref="0xc3031d80"/>
<provider ref="0xc3032280"/>
<mode>r0w0e0</mode>
</consumer>
</geom>
</class>
<class id="0xc09794c0">
<name>VFS</name>
<geom id="0xc3469d00">
<class ref="0xc09794c0"/>
<name>ffs.da0s1</name>
<rank>3</rank>
<consumer id="0xc3079180">
<geom ref="0xc3469d00"/>
<provider ref="0xc3066100"/>
<mode>r1w1e1</mode>
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</geom>
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<name>ffs.ad4s1h</name>
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<mode>r1w1e1</mode>
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<name>ffs.ad4s1e</name>
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<mode>r1w1e1</mode>
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<mode>r1w1e1</mode>
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<name>ffs.ad4s1a</name>
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<provider ref="0xc3078000"/>
<mode>r1w1e1</mode>
</consumer>
</geom>
</class>
<class id="0xc09c68e0">
<name>MBREXT</name>
</class>
<class id="0xc09c6860">
<name>MBR</name>
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<name>da0</name>
<rank>2</rank>
<config>
</config>
<consumer id="0xc30793c0">
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<mode>r1w1e2</mode>
<config>
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<provider id="0xc3066100">
<geom ref="0xc3078b80"/>
<mode>r1w1e1</mode>
<name>da0s1</name>
<mediasize>500105217024</mediasize>
<sectorsize>512</sectorsize>
<config>
<index>0</index>
<length>500105217024</length>
<seclength>976768002</seclength>
<offset>32256</offset>
<secoffset>63</secoffset>
<type>165</type>
</config>
</provider>
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<provider id="0xc3031300">
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<mode>r7w7e7</mode>
<name>ad4s1</name>
<mediasize>160039240704</mediasize>
<sectorsize>512</sectorsize>
<config>
<index>0</index>
<length>160039240704</length>
<seclength>312576642</seclength>
<offset>32256</offset>
<secoffset>63</secoffset>
<type>165</type>
</config>
</provider>
</geom>
<geom id="0xc3031e80">
<class ref="0xc09c6860"/>
<name>ad3c</name>
<rank>3</rank>
<config>
</config>
<consumer id="0xc3069880">
<geom ref="0xc3031e80"/>
<provider ref="0xc2e6fd80"/>
<mode>r0w0e0</mode>
<config>
</config>
</consumer>
<provider id="0xc3065e00">
<geom ref="0xc3031e80"/>
<mode>r0w0e0</mode>
<name>ad3cs1</name>
<mediasize>320070288384</mediasize>
<sectorsize>512</sectorsize>
<config>
<index>0</index>
<length>320070288384</length>
<seclength>625137282</seclength>
<offset>32256</offset>
<secoffset>63</secoffset>
<type>165</type>
</config>
</provider>
</geom>
<geom id="0xc3065200">
<class ref="0xc09c6860"/>
<name>ad1c</name>
<rank>3</rank>
<config>
</config>
<consumer id="0xc2fde840">
<geom ref="0xc3065200"/>
<provider ref="0xc3032180"/>
<mode>r0w0e0</mode>
<config>
</config>
</consumer>
<provider id="0xc3065100">
<geom ref="0xc3065200"/>
<mode>r0w0e0</mode>
<name>ad1cs1</name>
<mediasize>320070288384</mediasize>
<sectorsize>512</sectorsize>
<config>
<index>0</index>
<length>320070288384</length>
<seclength>625137282</seclength>
<offset>32256</offset>
<secoffset>63</secoffset>
<type>165</type>
</config>
</provider>
</geom>
<geom id="0xc2e6f680">
<class ref="0xc09c6860"/>
<name>ad3</name>
<rank>2</rank>
<config>
</config>
<consumer id="0xc305f0c0">
<geom ref="0xc2e6f680"/>
<provider ref="0xc3031800"/>
<mode>r0w0e0</mode>
<config>
</config>
</consumer>
<provider id="0xc2e6fa00">
<geom ref="0xc2e6f680"/>
<mode>r0w0e0</mode>
<name>ad3s1</name>
<mediasize>320070288384</mediasize>
<sectorsize>512</sectorsize>
<config>
<index>0</index>
<length>320070288384</length>
<seclength>625137282</seclength>
<offset>32256</offset>
<secoffset>63</secoffset>
<type>165</type>
</config>
</provider>
</geom>
<geom id="0xc3031480">
<class ref="0xc09c6860"/>
<name>ad1</name>
<rank>2</rank>
<config>
</config>
<consumer id="0xc305f200">
<geom ref="0xc3031480"/>
<provider ref="0xc3031980"/>
<mode>r0w0e0</mode>
<config>
</config>
</consumer>
<provider id="0xc3031380">
<geom ref="0xc3031480"/>
<mode>r0w0e0</mode>
<name>ad1s1</name>
<mediasize>320070288384</mediasize>
<sectorsize>512</sectorsize>
<config>
<index>0</index>
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<labeloffset>512</labeloffset>
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<labeloffset>512</labeloffset>
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</class>
<class id="0xc095aec0">
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</class>
<class id="0xc09b9200">
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<name>swap</name>
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<provider ref="0xc306ae00"/>
<mode>r1w1e0</mode>
</consumer>
</geom>
</class>
</mesh>
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