Re: FS unmountable after RAID/LVM problems

2018-03-14 Thread Qu Wenruo
On 2018年03月14日 18:06, Dirk Gouders wrote: > Qu Wenruo writes: > >> On 2018年03月14日 17:36, Dirk Gouders wrote: >>> Qu Wenruo writes: >>> On 2018年03月14日 16:53, Dirk Gouders wrote: > Qu Wenruo writes: > >>

Re: FS unmountable after RAID/LVM problems

2018-03-14 Thread Qu Wenruo
On 2018年03月14日 17:36, Dirk Gouders wrote: > Qu Wenruo writes: > >> On 2018年03月14日 16:53, Dirk Gouders wrote: >>> Qu Wenruo writes: >>> On 2018年03月13日 22:49, Dirk Gouders wrote: [snip] >> >> # btrfs inspect dump-tree -b

Re: FS unmountable after RAID/LVM problems

2018-03-14 Thread Dirk Gouders
Qu Wenruo writes: > On 2018年03月14日 16:53, Dirk Gouders wrote: >> Qu Wenruo writes: >> >>> On 2018年03月13日 22:49, Dirk Gouders wrote: >>> [snip] > > # btrfs inspect dump-tree -b 848986112 /dev/loop0p1 > # btrfs inspect dump-tree -b

Re: FS unmountable after RAID/LVM problems

2018-03-14 Thread Qu Wenruo
On 2018年03月14日 16:53, Dirk Gouders wrote: > Qu Wenruo writes: > >> On 2018年03月13日 22:49, Dirk Gouders wrote: >> [snip] # btrfs inspect dump-tree -b 848986112 /dev/loop0p1 # btrfs inspect dump-tree -b 72089600 /dev/loop0p1 >>> >>> OK. >>> >>> (This mail

Re: FS unmountable after RAID/LVM problems

2018-03-14 Thread Dirk Gouders
Qu Wenruo writes: > On 2018年03月13日 22:49, Dirk Gouders wrote: > [snip] >>> >>> # btrfs inspect dump-tree -b 848986112 /dev/loop0p1 >>> # btrfs inspect dump-tree -b 72089600 /dev/loop0p1 >> >> OK. >> >> (This mail gets a bit long but I don't want to snip probably

Re: FS unmountable after RAID/LVM problems

2018-03-13 Thread Qu Wenruo
On 2018年03月13日 22:49, Dirk Gouders wrote: [snip] >> >> # btrfs inspect dump-tree -b 848986112 /dev/loop0p1 >> # btrfs inspect dump-tree -b 72089600 /dev/loop0p1 > > OK. > > (This mail gets a bit long but I don't want to snip probably important > information above.) > Feel free to snip. As

Re: FS unmountable after RAID/LVM problems

2018-03-13 Thread Dirk Gouders
Qu Wenruo writes: > On 2018年03月13日 22:21, Dirk Gouders wrote: >> Qu Wenruo writes: >> >>> On 2018年03月13日 21:29, Dirk Gouders wrote: Qu Wenruo writes: > On 2018年03月13日 21:01, Dirk Gouders wrote: >> Qu

Re: FS unmountable after RAID/LVM problems

2018-03-13 Thread Qu Wenruo
On 2018年03月13日 22:21, Dirk Gouders wrote: > Qu Wenruo writes: > >> On 2018年03月13日 21:29, Dirk Gouders wrote: >>> Qu Wenruo writes: >>> On 2018年03月13日 21:01, Dirk Gouders wrote: > Qu Wenruo writes: > >>

Re: FS unmountable after RAID/LVM problems

2018-03-13 Thread Dirk Gouders
Qu Wenruo writes: > On 2018年03月13日 21:29, Dirk Gouders wrote: >> Qu Wenruo writes: >> >>> On 2018年03月13日 21:01, Dirk Gouders wrote: Qu Wenruo writes: > On 2018年03月13日 16:53, Dirk Gouders wrote:

Re: FS unmountable after RAID/LVM problems

2018-03-13 Thread Qu Wenruo
On 2018年03月13日 21:29, Dirk Gouders wrote: > Qu Wenruo writes: > >> On 2018年03月13日 21:01, Dirk Gouders wrote: >>> Qu Wenruo writes: >>> On 2018年03月13日 16:53, Dirk Gouders wrote: >>> >>> >>> > find-root: > > # btrfs-find-root

Re: FS unmountable after RAID/LVM problems

2018-03-13 Thread Dirk Gouders
Qu Wenruo writes: > On 2018年03月13日 21:01, Dirk Gouders wrote: >> Qu Wenruo writes: >> >>> On 2018年03月13日 16:53, Dirk Gouders wrote: >> >> >> find-root: # btrfs-find-root /dev/loop0p1 Superblock thinks the generation is

Re: FS unmountable after RAID/LVM problems

2018-03-13 Thread Qu Wenruo
On 2018年03月13日 21:01, Dirk Gouders wrote: > Qu Wenruo writes: > >> On 2018年03月13日 16:53, Dirk Gouders wrote: > > > >>> find-root: >>> >>> # btrfs-find-root /dev/loop0p1 >>> Superblock thinks the generation is 9858294 >>> Superblock thinks the level is 1 >>> Found

Re: FS unmountable after RAID/LVM problems

2018-03-13 Thread Dirk Gouders
Qu Wenruo writes: > On 2018年03月13日 16:53, Dirk Gouders wrote: >> find-root: >> >> # btrfs-find-root /dev/loop0p1 >> Superblock thinks the generation is 9858294 >> Superblock thinks the level is 1 >> Found tree root at 848773120 gen 9858294 level 1 > > Tree root is

Re: FS unmountable after RAID/LVM problems

2018-03-13 Thread Qu Wenruo
On 2018年03月13日 16:53, Dirk Gouders wrote: > Hello all, > > a somewhat aged RAID array (16 Disks) got into trouble after it has > been powered off because of facility management maintenance tasks. > > It then went through some rebuilds loosing three disks on the way and > the whole procedure

FS unmountable after RAID/LVM problems

2018-03-13 Thread Dirk Gouders
Hello all, a somewhat aged RAID array (16 Disks) got into trouble after it has been powered off because of facility management maintenance tasks. It then went through some rebuilds loosing three disks on the way and the whole procedure ended with corrupted volumes. Volumes with ext{2,4}