Re: [CentOS] Looking for a life-save LVM Guru
Ok, sorry about that. On Sat, February 28, 2015 9:13 am, Chris Murphy wrote: > OK It's extremely rude to cross post the same question across multiple > lists like this at exactly the same time, and without at least showing the > cross posting. I just replied to the one on Fedora users before I saw this > post. This sort of thing wastes people's time. Pick one list based on the > best case chance for response and give it 24 hours. > > > Chris Murphy > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > > ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for a life-save LVM Guru
Hello James and All, For your information, here's the listing looks like: [root@localhost ~]# pvs PV VG Fmt Attr PSize PFree /dev/sda1 vg_hosting lvm2 a-- 1.82t0 /dev/sdb2 vg_hosting lvm2 a-- 1.82t0 /dev/sdc1 vg_hosting lvm2 a-- 1.82t0 /dev/sdd1 vg_hosting lvm2 a-- 1.82t0 [root@localhost ~]# lvs LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert lv_home vg_hosting -wi-s- 7.22t lv_root vg_hosting -wi-a- 50.00g lv_swap vg_hosting -wi-a- 11.80g [root@localhost ~]# vgs VG #PV #LV #SN Attr VSize VFree vg_hosting 4 3 0 wz--n- 7.28t0 [root@localhost ~]# The problem is, when I do: [root@localhost ~]# vgchange -a y device-mapper: resume ioctl on failed: Invalid argument Unable to resume vg_hosting-lv_home (253:4) 3 logical volume(s) in volume group "vg_hosting" now active Only lv_root and lv_swap are activated; but lv_home is not, with the error above (on the vgchange command). How to activate the lv_home even with the 3 PVs left? The PV /dev/sdb2 is the one lost. I created it from a new blank hard disk and restore the VG using: # pvcreate --restorefile ... --uuid ... /dev/sdb2 # vgcfgrestore --file ... vg_hosting Regards, Khem On Sat, February 28, 2015 7:42 am, Khemara Lyn wrote: > Dear James, > > > Thank you for being quick to help. > Yes, I could see all of them: > > > # vgs > # lvs > # pvs > > > Regards, > Khem > > > On Sat, February 28, 2015 7:37 am, James A. Peltier wrote: > >> > >> >> - Original Message - >> | Dear All, >> | >> | I am in desperate need for LVM data rescue for my server. >> | I have an VG call vg_hosting consisting of 4 PVs each contained in a >> | separate hard drive (/dev/sda1, /dev/sdb1, /dev/sdc1, and /dev/sdd1). >> | And this LV: lv_home was created to use all the space of the 4 PVs. >> | >> | Right now, the third hard drive is damaged; and therefore the third PV >> | (/dev/sdc1) cannot be accessed anymore. I would like to recover >> whatever | left in the other 3 PVs (/dev/sda1, /dev/sdb1, and >> /dev/sdd1). >> | >> | I have tried with the following: >> | >> | 1. Removing the broken PV: >> | >> | # vgreduce --force vg_hosting /dev/sdc1 >> | Physical volume "/dev/sdc1" still in use >> | >> | # pvmove /dev/sdc1 >> | No extents available for allocation >> >> >> >> This would indicate that you don't have sufficient extents to move the >> data off of this disk. If you have another disk then you could try >> adding it to the VG and then moving the extents. >> >> | 2. Replacing the broken PV: >> | >> | I was able to create a new PV and restore the VG Config/meta data: >> | >> | # pvcreate --restorefile ... --uuid ... /dev/sdc1 >> | # vgcfgrestore --file ... vg_hosting >> | >> | However, vgchange would give this error: >> | >> | # vgchange -a y >> | device-mapper: resume ioctl on failed: Invalid argument >> | Unable to resume vg_hosting-lv_home (253:4) >> | 0 logical volume(s) in volume group "vg_hosting" now active >> >> >> >> There should be no need to create a PV and then restore the VG unless >> the entire VG is damaged. The configuration should still be available >> on the other disks and adding the new PV and moving the extents should >> be enough. >> >> | Could someone help me please??? >> | I'm in dire need for help to save the data, at least some of it if >> possible. >> >> Can you not see the PV/VG/LV at all? >> >> >> >> -- >> James A. Peltier >> IT Services - Research Computing Group >> Simon Fraser University - Burnaby Campus >> Phone : 778-782-6573 >> Fax : 778-782-3045 >> E-Mail : jpelt...@sfu.ca >> Website : http://www.sfu.ca/itservices >> Twitter : @sfu_rcg >> Powering Engagement Through Technology >> "Build upon strengths and weaknesses will generally take care of >> themselves" - Joyce C. Lock >> >> ___ >> CentOS mailing list >> CentOS@centos.org >> http://lists.centos.org/mailman/listinfo/centos >> >> >> > > > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > > ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for a life-save LVM Guru
Dear John, I understand; I tried it in the hope that, I could activate the LV again with a new PV replacing the damaged one. But still I could not activate it. What is the right way to recover the remaining PVs left? Regards, Khem On Sat, February 28, 2015 7:42 am, John R Pierce wrote: > On 2/27/2015 4:37 PM, James A. Peltier wrote: > >> | I was able to create a new PV and restore the VG Config/meta data: >> | >> | # pvcreate --restorefile ... --uuid ... /dev/sdc1 >> | >> > > oh, that step means you won't be able to recover ANY of the data that was > formerly on that PV. > > > > -- > john r pierce 37N 122W somewhere on > the middle of the left coast > > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > > ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for a life-save LVM Guru
Dear James, Thank you for being quick to help. Yes, I could see all of them: # vgs # lvs # pvs Regards, Khem On Sat, February 28, 2015 7:37 am, James A. Peltier wrote: > > > - Original Message - > | Dear All, > | > | I am in desperate need for LVM data rescue for my server. > | I have an VG call vg_hosting consisting of 4 PVs each contained in a > | separate hard drive (/dev/sda1, /dev/sdb1, /dev/sdc1, and /dev/sdd1). > | And this LV: lv_home was created to use all the space of the 4 PVs. > | > | Right now, the third hard drive is damaged; and therefore the third PV > | (/dev/sdc1) cannot be accessed anymore. I would like to recover whatever > | left in the other 3 PVs (/dev/sda1, /dev/sdb1, and /dev/sdd1). > | > | I have tried with the following: > | > | 1. Removing the broken PV: > | > | # vgreduce --force vg_hosting /dev/sdc1 > | Physical volume "/dev/sdc1" still in use > | > | # pvmove /dev/sdc1 > | No extents available for allocation > > > This would indicate that you don't have sufficient extents to move the > data off of this disk. If you have another disk then you could try > adding it to the VG and then moving the extents. > > | 2. Replacing the broken PV: > | > | I was able to create a new PV and restore the VG Config/meta data: > | > | # pvcreate --restorefile ... --uuid ... /dev/sdc1 > | # vgcfgrestore --file ... vg_hosting > | > | However, vgchange would give this error: > | > | # vgchange -a y > | device-mapper: resume ioctl on failed: Invalid argument > | Unable to resume vg_hosting-lv_home (253:4) > | 0 logical volume(s) in volume group "vg_hosting" now active > > > There should be no need to create a PV and then restore the VG unless the > entire VG is damaged. The configuration should still be available on the > other disks and adding the new PV and moving the extents should be > enough. > > | Could someone help me please??? > | I'm in dire need for help to save the data, at least some of it if > possible. > > Can you not see the PV/VG/LV at all? > > > -- > James A. Peltier > IT Services - Research Computing Group > Simon Fraser University - Burnaby Campus > Phone : 778-782-6573 > Fax : 778-782-3045 > E-Mail : jpelt...@sfu.ca > Website : http://www.sfu.ca/itservices > Twitter : @sfu_rcg > Powering Engagement Through Technology > "Build upon strengths and weaknesses will generally take care of > themselves" - Joyce C. Lock > > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > > ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for a life-save LVM Guru
Thank you, John for your quick reply. That is what I hope. But how to do it? I cannot even activate the LV with the remaining PVs. Thanks, Khem On Sat, February 28, 2015 7:34 am, John R Pierce wrote: > On 2/27/2015 4:25 PM, Khemara Lyn wrote: > >> Right now, the third hard drive is damaged; and therefore the third PV >> (/dev/sdc1) cannot be accessed anymore. I would like to recover whatever >> left in the other 3 PVs (/dev/sda1, /dev/sdb1, and /dev/sdd1). > > your data is spread across all 4 drives, and you lost 25% of it. so only 3 > out of 4 blocks of data still exist. good luck with recovery. > > > > -- > john r pierce 37N 122W somewhere on > the middle of the left coast > > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > > ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Looking for a life-save LVM Guru
Dear All, I am in desperate need for LVM data rescue for my server. I have an VG call vg_hosting consisting of 4 PVs each contained in a separate hard drive (/dev/sda1, /dev/sdb1, /dev/sdc1, and /dev/sdd1). And this LV: lv_home was created to use all the space of the 4 PVs. Right now, the third hard drive is damaged; and therefore the third PV (/dev/sdc1) cannot be accessed anymore. I would like to recover whatever left in the other 3 PVs (/dev/sda1, /dev/sdb1, and /dev/sdd1). I have tried with the following: 1. Removing the broken PV: # vgreduce --force vg_hosting /dev/sdc1 Physical volume "/dev/sdc1" still in use # pvmove /dev/sdc1 No extents available for allocation 2. Replacing the broken PV: I was able to create a new PV and restore the VG Config/meta data: # pvcreate --restorefile ... --uuid ... /dev/sdc1 # vgcfgrestore --file ... vg_hosting However, vgchange would give this error: # vgchange -a y device-mapper: resume ioctl on failed: Invalid argument Unable to resume vg_hosting-lv_home (253:4) 0 logical volume(s) in volume group "vg_hosting" now active Could someone help me please??? I'm in dire need for help to save the data, at least some of it if possible. Regards, Khem ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
