Re: [linux-lvm] lvm raid5 : drives all present but vg/lvm will not assemble

[Andrew Falgout <digitalw00t@gmail.com>]

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Anyone have any ideas how I can salvage this array?

./drae


On Tue, Mar 24, 2020 at 11:09 AM Andrew Falgout <digitalw00t@gmail.com>
wrote:

> The disks are seen, the volume groups are seen.  When I try to activate
> the VG I get this:
>
> vgchange -ay vg1
>   device-mapper: reload ioctl on  (253:19) failed: Input/output error
>   0 logical volume(s) in volume group "vg1" now active
>
> I executed 'vgchange -ay vg1 -vvvv -dddd' and this is the only time an
> error was thrown.
> 20:53:16.552602 vgchange[10795] device_mapper/libdm-deptree.c:2921  Adding
> target to (253:19): 0 31256068096 raid raid5_ls 3 128 region_size 32768 3
> 253:13 253:14 253:15 253:16 253:17 253:18
> 20:53:16.552609 vgchange[10795] device_mapper/ioctl/libdm-iface.c:1853  dm
> table   (253:19) [ opencount flush ]   [16384] (*1)
> 20:53:16.552619 vgchange[10795] device_mapper/ioctl/libdm-iface.c:1853  dm
> reload   (253:19) [ noopencount flush ]   [16384] (*1)
> 20:53:16.572481 vgchange[10795] device_mapper/ioctl/libdm-iface.c:1903
>  device-mapper: reload ioctl on  (253:19) failed: Input/output error
>
> I've uploaded two very verbose and debug ridden.
> https://pastebin.com/bw5eQBa8
> https://pastebin.com/qV5yft05
>
> Ignore the naming.  It's not a gluster.  I was planning on making two and
> mirroring them in a gluster.
>
> ./drae
>
>
> On Mon, Mar 23, 2020 at 5:14 AM Bernd Eckenfels <ecki@zusammenkunft.net>
> wrote:
>
>> Do you see any dmesg kernel errors when you try to activate the LVs?
>>
>> Gruss
>> Bernd
>>
>>
>> --
>> http://bernd.eckenfels.net
>> ------------------------------
>> *Von:* linux-lvm-bounces@redhat.com <linux-lvm-bounces@redhat.com> im
>> Auftrag von Andrew Falgout <digitalw00t@gmail.com>
>> *Gesendet:* Saturday, March 21, 2020 4:22:04 AM
>> *An:* linux-lvm@redhat.com <linux-lvm@redhat.com>
>> *Betreff:* [linux-lvm] lvm raid5 : drives all present but vg/lvm will
>> not assemble
>>
>>
>> This started on a Raspberry PI 4 running raspbian.  I moved the disks to
>> my Fedora 31 system, that is running the latest updates and kernel.  When I
>> had the same issues there I knew it wasn't raspbian.
>>
>> I've reached the end of my rope on this. The disks are there, all three
>> are accounted for, and the LVM data on them can be seen.  But it refuses to
>> activate stating I/O errors.
>>
>> [root@hypervisor01 ~]# pvs
>>   PV         VG                Fmt  Attr PSize    PFree
>>   /dev/sda1  local_storage01   lvm2 a--  <931.51g       0
>>   /dev/sdb1  local_storage01   lvm2 a--  <931.51g       0
>>   /dev/sdc1  local_storage01   lvm2 a--  <931.51g       0
>>   /dev/sdd1  local_storage01   lvm2 a--  <931.51g       0
>>   /dev/sde1  local_storage01   lvm2 a--  <931.51g       0
>>   /dev/sdf1  local_storage01   lvm2 a--  <931.51g <931.51g
>>   /dev/sdg1  local_storage01   lvm2 a--  <931.51g <931.51g
>>   /dev/sdh1  local_storage01   lvm2 a--  <931.51g <931.51g
>>   /dev/sdi3  fedora_hypervisor lvm2 a--    27.33g   <9.44g
>>   /dev/sdk1  vg1               lvm2 a--    <7.28t       0
>>   /dev/sdl1  vg1               lvm2 a--    <7.28t       0
>>   /dev/sdm1  vg1               lvm2 a--    <7.28t       0
>> [root@hypervisor01 ~]# vgs
>>   VG                #PV #LV #SN Attr   VSize  VFree
>>   fedora_hypervisor   1   2   0 wz--n- 27.33g <9.44g
>>   local_storage01     8   1   0 wz--n- <7.28t <2.73t
>>   vg1                 3   1   0 wz--n- 21.83t     0
>> [root@hypervisor01 ~]# lvs
>>   LV        VG                Attr       LSize  Pool Origin Data%  Meta%
>>  Move Log Cpy%Sync Convert
>>   root      fedora_hypervisor -wi-ao---- 15.00g
>>
>>   swap      fedora_hypervisor -wi-ao----  2.89g
>>
>>   libvirt   local_storage01   rwi-aor--- <2.73t
>>          100.00
>>   gluster02 vg1               Rwi---r--- 14.55t
>>
>>
>> The one in question is the vg1/gluster02 lvm group.
>>
>> I try to activate the VG:
>> [root@hypervisor01 ~]# vgchange -ay vg1
>>   device-mapper: reload ioctl on  (253:19) failed: Input/output error
>>   0 logical volume(s) in volume group "vg1" now active
>>
>> I've got the debugging output from :
>> vgchange -ay vg1 -vvvv -dddd
>> lvchange -ay --partial vg1/gluster02 -vvvv -dddd
>>
>> Just not sure where I should dump the data for people to look at.  Is
>> there a way to tell the md system to ignore the metadata since there wasn't
>> an actual disk failure, and rebuild the metadata off what is in the lvm?
>> Or can I even get the LV to mount, so I can pull the data off.
>>
>> Any help is appreciated.  If I can save the data great.  I'm tossing this
>> to the community to see if anyone else has an idea of what I can do.
>> ./digitalw00t
>> _______________________________________________
>> linux-lvm mailing list
>> linux-lvm@redhat.com
>> https://www.redhat.com/mailman/listinfo/linux-lvm
>> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>
>

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