[linux-lvm] vgscanfailed"novolumegroupsfound"

[linux-lvm] vgscanfailed"novolumegroupsfound"

[appendix]

Hi!

I've a LVM one physical volume "vg0" that created on 9 RAID devices.
It worked still the day.
But one day, I have problem about vgscan reports that it can't find my VG. 
And recovery data /etc/lvmconf/vg0.conf was broken by other cause.
Please help me..... or give me hints to recover it.

My VG structure is following

/dev/md2,md3,md4,md5,md6,md7,md8,md9,md10 => vg0

Kernel Linux melody.angelic.jp 2.4.5 #10 SMP

The pvscan report is following
>pvscan
pvscan -- reading all physical volumes (this may take a while...)
pvscan -- inactive PV "/dev/md2"   is associated to an unknown VG (run vgscan)
pvscan -- inactive PV "/dev/md3"   is associated to an unknown VG (run vgscan)
pvscan -- inactive PV "/dev/md4"   is associated to an unknown VG (run vgscan)
pvscan -- inactive PV "/dev/md5"   is associated to an unknown VG (run vgscan)
pvscan -- inactive PV "/dev/md6"   is associated to an unknown VG (run vgscan)
pvscan -- inactive PV "/dev/md7"   is associated to an unknown VG (run vgscan)
pvscan -- inactive PV "/dev/md8"   is associated to an unknown VG (run vgscan)
pvscan -- inactive PV "/dev/md9"   is associated to an unknown VG (run vgscan)
pvscan -- inactive PV "/dev/md10" of VG "vg1" [4.48 GB / 4.48 GB free]
pvscan -- total: 9 [68.48 GB] / in use: 9 [68.48 GB] / in no VG: 0 [0]

The pvdata report is following
>pvdata -U /dev/md2
000: w1ozGmggQJ7LqDumRFhBWpxAcBuinvkV
001: gyivka8v8Rs8N6UHW1mXO2A7pe3V2UtL
002: N1rBqi3J4SXDpRwYCh65eXCtH98zrkYQ
003: vy3JnFfm4b4j5t1kcnnmPBVnqvKE1454
004: 3qwEJ6e08fnjyfEtYh2VUwNLSlAv7WHC
005: bCf2F3RgkdCqz0qs605zpQiMDF738U7Q
006: Ao8MnMZSLrDhk1pbTHatNA5KHiZXv5vG
007: 3ztQ2cfoGMc15y1TTXQzSpSkTIBzLcas
008: 9VW0My6FYEh4T1WnwBP3m0OSlMhdM7Gq
009: BIxTWheupMeCfEjU8UuyW0LX8gAq4aoD

>pvdata -PP pvdata -PP /dev/md2
--- Physical volume ---
PV Name               /dev/md2
VG Name               vg0
PV Size               8 GB / NOT usable 4 MB [LVM: 128 KB]
PV#                   2
PV Status             available
Allocatable           yes (but full)
Cur LV                1
PE Size (KByte)       4096
Total PE              2047
Free PE               0
Allocated PE          2047
PV UUID               gyivka-8v8R-s8N6-UHW1-mXO2-A7pe-3V2UtL
pv_dev                   0:9
system_id                melody.angelic.jp991380667
pv_on_disk.base          0
pv_on_disk.size          1024
vg_on_disk.base          1024
vg_on_disk.size          4608
pv_uuidlist_on_disk.base 6144
pv_uuidlist_on_disk.size 32896
lv_on_disk.base          39424
lv_on_disk.size          84296
pe_on_disk.base          123904
pe_on_disk.size          4070400

Re: [linux-lvm] vgscanfailed"novolumegroupsfound"

[Andreas Dilger]

On Oct 25, 2001  14:15 +0900, appendix@hatsune.cc wrote:
> I've a LVM one physical volume "vg0" that created on 9 RAID devices.
> 
> My VG structure is following
> /dev/md2,md3,md4,md5,md6,md7,md8,md9,md10 => vg0

You say 9 md devices, and list 9 above for vg0.

> Kernel Linux melody.angelic.jp 2.4.5 #10 SMP
> 
> The pvscan report is following
> >pvscan
> pvscan -- reading all physical volumes (this may take a while...)
> pvscan -- inactive PV "/dev/md2"   is associated to an unknown VG (run vgscan)
> pvscan -- inactive PV "/dev/md3"   is associated to an unknown VG (run vgscan)
> pvscan -- inactive PV "/dev/md4"   is associated to an unknown VG (run vgscan)
> pvscan -- inactive PV "/dev/md5"   is associated to an unknown VG (run vgscan)
> pvscan -- inactive PV "/dev/md6"   is associated to an unknown VG (run vgscan)
> pvscan -- inactive PV "/dev/md7"   is associated to an unknown VG (run vgscan)
> pvscan -- inactive PV "/dev/md8"   is associated to an unknown VG (run vgscan)
> pvscan -- inactive PV "/dev/md9"   is associated to an unknown VG (run vgscan)
> pvscan -- inactive PV "/dev/md10" of VG "vg1" [4.48 GB / 4.48 GB free]
One of your PVs says it is in another VG   ^^^ very strange.  
> pvscan -- total: 9 [68.48 GB] / in use: 9 [68.48 GB] / in no VG: 0 [0]
> 
> The pvdata report is following
> >pvdata -U /dev/md2
> 000: w1ozGmggQJ7LqDumRFhBWpxAcBuinvkV
> 001: gyivka8v8Rs8N6UHW1mXO2A7pe3V2UtL
> 002: N1rBqi3J4SXDpRwYCh65eXCtH98zrkYQ
> 003: vy3JnFfm4b4j5t1kcnnmPBVnqvKE1454
> 004: 3qwEJ6e08fnjyfEtYh2VUwNLSlAv7WHC
> 005: bCf2F3RgkdCqz0qs605zpQiMDF738U7Q
> 006: Ao8MnMZSLrDhk1pbTHatNA5KHiZXv5vG
> 007: 3ztQ2cfoGMc15y1TTXQzSpSkTIBzLcas
> 008: 9VW0My6FYEh4T1WnwBP3m0OSlMhdM7Gq
> 009: BIxTWheupMeCfEjU8UuyW0LX8gAq4aoD
  ^^^ 10 PVs listed.  This is wrong.
> 
> >pvdata -PP pvdata -PP /dev/md2
> --- Physical volume ---
> PV#                   2
> PV UUID               gyivka-8v8R-s8N6-UHW1-mXO2-A7pe-3V2UtL

This matches "001" above.  You need to check each of the other MD devices
to see which ones have valid UUIDs.  You may need to use the uuid-fixer
tool.

Cheers, Andreas
--
Andreas Dilger  \ "If a man ate a pound of pasta and a pound of antipasto,
                 \  would they cancel out, leaving him still hungry?"
http://www-mddsp.enel.ucalgary.ca/People/adilger/               -- Dogbert

Re: [linux-lvm] vgscanfailed"novolumegroupsfound"

[YouMizuki]

>> My VG structure is following
>> /dev/md2,md3,md4,md5,md6,md7,md8,md9,md10 => vg0
>You say 9 md devices, and list 9 above for vg0.
>pvscan -- inactive PV "/dev/md10" of VG "vg1" [4.48 GB / 4.48 GB free]
>One of your PVs says it is in another VG   ^^^ very strange.  

This PV device is not used now.This PV is not included "vg0"

# Really,this device was included "vg0",but when I tried to recovery this,
# It was broken ,cause of my mistake.
# It may be broken part of this VG, but I think the area will be not used by filesystem. 
# I want to recovery remaining....
 

>> >pvdata -PP pvdata -PP /dev/md2
>> --- Physical volume ---
>> PV#                   2
>> PV UUID               gyivka-8v8R-s8N6-UHW1-mXO2-A7pe-3V2UtL
>This matches "001" above.  You need to check each of the other MD devices
>to see which ones have valid UUIDs.  You may need to use the uuid-fixer
>tool.

Thanks! I will try to use uuid-fixer.
-- 
YouMizuki <appendix@hatsune.cc>

Re: [linux-lvm] vgscan failed "no volume groups found"

[YouMizuki]

I tried to do uuid_fixer.
But I had this message.

uuid_fixer  /dev/md2 /dev/md3 /dev/md4 /dev/md5 /dev/md6 /dev/md7 /dev/md8
/dev/md9 
Error: number of PVs passed in does not match number of PVs in /dev/md2's VG
       8 PVs were passed in and 10 were expected.

uuid_fixer2  /dev/md2 /dev/md3 /dev/md4 /dev/md5 /dev/md6 /dev/md7
/dev/md8 /dev/md9 /dev/md10
Error: number of PVs passed in does not match number of PVs in /dev/md2's VG
       9 PVs were passed in and 10 were expected.

My /dev/md10 is broken. but /dev/md2../dev/md9 alive.
I want to recover the remainder disks.
Please give some advice to me....


>I've a LVM one physical volume "vg0" that created on 9 RAID devices.
>It worked still the day.
>But one day, I have problem about vgscan reports that it can't find my
VG. 
>And recovery data /etc/lvmconf/vg0.conf was broken by other cause.
>Please help me..... or give me hints to recover it.

>My VG structure is following

>/dev/md2,md3,md4,md5,md6,md7,md8,md9,md10 => vg0

>Kernel Linux  2.4.5 #10 SMP

>The pvscan report is following
>pvscan
>pvscan -- reading all physical volumes (this may take a while...)
>pvscan -- inactive PV "/dev/md2"   is associated to an unknown VG (run
vgscan)
>pvscan -- inactive PV "/dev/md3"   is associated to an unknown VG (run
vgscan)
>pvscan -- inactive PV "/dev/md4"   is associated to an unknown VG (run
vgscan)
>pvscan -- inactive PV "/dev/md5"   is associated to an unknown VG (run
vgscan)
>pvscan -- inactive PV "/dev/md6"   is associated to an unknown VG (run
vgscan)
>pvscan -- inactive PV "/dev/md7"   is associated to an unknown VG (run
vgscan)
>pvscan -- inactive PV "/dev/md8"   is associated to an unknown VG (run
vgscan)
>pvscan -- inactive PV "/dev/md9"   is associated to an unknown VG (run
vgscan)
>pvscan -- inactive PV "/dev/md10" of VG "vg1" [4.48 GB / 4.48 GB free]
>pvscan -- total: 9 [68.48 GB] / in use: 9 [68.48 GB] / in no VG: 0 [0]

>The pvdata report is following
>>pvdata -U /dev/md2
>000: w1ozGmggQJ7LqDumRFhBWpxAcBuinvkV
>001: gyivka8v8Rs8N6UHW1mXO2A7pe3V2UtL
>002: N1rBqi3J4SXDpRwYCh65eXCtH98zrkYQ
>003: vy3JnFfm4b4j5t1kcnnmPBVnqvKE1454
>004: 3qwEJ6e08fnjyfEtYh2VUwNLSlAv7WHC
>005: bCf2F3RgkdCqz0qs605zpQiMDF738U7Q
>006: Ao8MnMZSLrDhk1pbTHatNA5KHiZXv5vG
>007: 3ztQ2cfoGMc15y1TTXQzSpSkTIBzLcas
>008: 9VW0My6FYEh4T1WnwBP3m0OSlMhdM7Gq
>009: BIxTWheupMeCfEjU8UuyW0LX8gAq4aoD

>>pvdata -PP pvdata -PP /dev/md2
>--- Physical volume ---
>PV Name               /dev/md2
>VG Name               vg0
>PV Size               8 GB / NOT usable 4 MB [LVM: 128 KB]
>PV#                   2
>PV Status             available
>Allocatable           yes (but full)
>Cur LV                1
>PE Size (KByte)       4096
>Total PE              2047
>Free PE               0
>Allocated PE          2047
>PV UUID               gyivka-8v8R-s8N6-UHW1-mXO2-A7pe-3V2UtL
>pv_dev                   0:9
>pv_on_disk.base          0
>pv_on_disk.size          1024
>vg_on_disk.base          1024
>vg_on_disk.size          4608
>pv_uuidlist_on_disk.base 6144
>pv_uuidlist_on_disk.size 32896
>lv_on_disk.base          39424
>lv_on_disk.size          84296
>pe_on_disk.base          123904
>pe_on_disk.size          4070400

[linux-lvm] trouble of reduce pv

[YouMizuki]

I've a LVM one physical volume "vg0" that created on 10 RAID devices.
It worked still the day.
But one day, I have problem about vgscan reports that it can't find my VG.

My VG structure was this.

| /dev/md1,md2,md3,md4,md5,md6,md7,md8,md9,md10 => vg0

But md10 was broken.
I need to restruct VG like this.

| /dev/md1,md2,md3,md4,md5,md6,md7,md8,md9 => vg0

But vgscan is can't find VG

|vgscan
|vgscan -- reading all physical volumes (this may take a while...)
|vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created
|vgscan -- WARNING: This program does not do a VGDA backup of your volume group


I tried uuid_fixer. but I get only error.

|uuid_fixer  /dev/md1 /dev/md2 /dev/md3 /dev/md4 /dev/md5 /dev/md6 /dev/md7 /dev/md8 /dev/md9 
|Error: number of PVs passed in does not match number of PVs in /dev/md2's VG
|       9 PVs were passed in and 10 were expected.

I tried pvmove...

|pvmove --force -v /dev/md9 /dev/md10
|pvmove -- checking name of source physical volume "/dev/md9"
|pvmove -- locking logical volume manager
|pvmove -- reading data of source physical volume from "/dev/md9"
|pvmove -- checking volume group existence
|pvmove -- ERROR: can't move physical extents: volume group vg0 doesn't exist 

How do I carry out the restructuring of it and can I reconstruct it?

Re: [linux-lvm] trouble of reduce pv

[Heinz J . Mauelshagen]

You need to restore the metadata formerly stored on md10 to a valid device
using the LVM vgcfgrestore(8) command.
Then you can run vgscan and "vgchange -ay".

On Tue, Oct 30, 2001 at 03:45:29AM +0900, YouMizuki wrote:
> I've a LVM one physical volume "vg0" that created on 10 RAID devices.
> It worked still the day.
> But one day, I have problem about vgscan reports that it can't find my VG.
> 
> My VG structure was this.
> 
> | /dev/md1,md2,md3,md4,md5,md6,md7,md8,md9,md10 => vg0
> 
> But md10 was broken.
> I need to restruct VG like this.
> 
> | /dev/md1,md2,md3,md4,md5,md6,md7,md8,md9 => vg0
> 
> But vgscan is can't find VG
> 
> |vgscan
> |vgscan -- reading all physical volumes (this may take a while...)
> |vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created
> |vgscan -- WARNING: This program does not do a VGDA backup of your volume group
> 
> 
> I tried uuid_fixer. but I get only error.
> 
> |uuid_fixer  /dev/md1 /dev/md2 /dev/md3 /dev/md4 /dev/md5 /dev/md6 /dev/md7 /dev/md8 /dev/md9 
> |Error: number of PVs passed in does not match number of PVs in /dev/md2's VG
> |       9 PVs were passed in and 10 were expected.
> 
> I tried pvmove...
> 
> |pvmove --force -v /dev/md9 /dev/md10
> |pvmove -- checking name of source physical volume "/dev/md9"
> |pvmove -- locking logical volume manager
> |pvmove -- reading data of source physical volume from "/dev/md9"
> |pvmove -- checking volume group existence
> |pvmove -- ERROR: can't move physical extents: volume group vg0 doesn't exist 
> 
> How do I carry out the restructuring of it and can I reconstruct it?
> 
> 
> 
> 
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@sistina.com
> http://lists.sistina.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html

-- 

Regards,
Heinz    -- The LVM Guy --

*** Software bugs are stupid.
    Nevertheless it needs not so stupid people to solve them ***

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Heinz Mauelshagen                                 Sistina Software Inc.
Senior Consultant/Developer                       Am Sonnenhang 11
                                                  56242 Marienrachdorf
                                                  Germany
Mauelshagen@Sistina.com                           +49 2626 141200
                                                       FAX 924446
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Re: [linux-lvm] trouble of reduce pv

[YouMizuki]

Thanks for your answer.

> You need to restore the metadata formerly stored on md10 to a valid device
> using the LVM vgcfgrestore(8) command.
> Then you can run vgscan and "vgchange -ay".

 "/etc/lvmtab.d/" was losted with "/dev/md10".

Isn't there any method of reviving VG without /etc/lvmtab.d/ ?
For example, isn't there any method of creating metadata personally?

-- 
YouMizuki <appendix@hatsune.cc>