On Wed, 2022-09-07 at 18:18 +0100, Zé Loff wrote: > > On Wed, Sep 07, 2022 at 06:14:59PM +0100, Zé Loff wrote: > > On Wed, Sep 07, 2022 at 06:42:54PM +0200, Danny König wrote: > > > Hi, > > > > > > first time I need your support regarding a broken softraid0. > > > After a > > > normal reboot the softraid0 (RAID 1, two disks sd0 and sd1, > > > softraid0 > > > as sd5) was broken what means no mounts, no nothing. > > > > > > > > > root@core-fs:~ => disklabel -p g /dev/sd0c > > > # /dev/sd0c: > > > type: SCSI > > > disk: SCSI disk > > > label: ST16000NM003G-2K > > > duid: b1c256d6dc122fa7 > > > flags: > > > bytes/sector: 512 > > > sectors/track: 63 > > > tracks/cylinder: 255 > > > sectors/cylinder: 16065 > > > cylinders: 1945332 > > > total sectors: 31251759104 # total bytes: 14902.0G > > > boundstart: 0 > > > boundend: 31251759104 > > > drivedata: 0 > > > 16 partitions: > > > # size offset fstype [fsize bsize cpg] > > > a: 14902.0G 0 RAID > > > c: 14902.0G 0 unused > > > > > > > > > > > > root@core-fs:~ => disklabel -p g /dev/sd1c > > > # /dev/sd1c: > > > type: SCSI > > > disk: SCSI disk > > > label: ST16000NM003G-2K > > > duid: acedcb2d1684fb18 > > > flags: > > > bytes/sector: 512 > > > sectors/track: 63 > > > tracks/cylinder: 255 > > > sectors/cylinder: 16065 > > > cylinders: 1945332 > > > total sectors: 31251759104 # total bytes: 14902.0G > > > boundstart: 0 > > > boundend: 31251759104 > > > drivedata: 0 > > > 16 partitions: > > > # size offset fstype [fsize bsize cpg] > > > a: 14902.0G 0 RAID > > > c: 14902.0G 0 unused > > > > > > > > > > > > root@core-fs:~ => disklabel -p g /dev/sd5c > > > # /dev/sd5c: > > > type: SCSI > > > disk: SCSI disk > > > label: SR RAID 1 > > > duid: 0000000000000000 > > > flags: > > > bytes/sector: 512 > > > sectors/track: 255 > > > tracks/cylinder: 511 > > > sectors/cylinder: 130305 > > > cylinders: 239835 > > > total sectors: 31251758576 # total bytes: 14902.0G > > > boundstart: 0 > > > boundend: 31251758576 > > > drivedata: 0 > > > > > > 16 partitions: > > > # size offset fstype [fsize bsize > > > cpg] > > > c: 14902.0G 0 unused > > > > > > > > > > > > > > > root@core-fs:~ => bioctl softraid0 > > > Volume Status Size Device > > > softraid0 0 Online 16000900390912 sd5 RAID1 > > > 0 Online 16000900390912 0:0.0 noencl <sd0a> > > > 1 Online 16000900390912 0:1.0 noencl <sd1a> > > > > > > > > > > > > Thats what we got, but no mounts are possible. > > > > > > Any ideas how to become the data back available? > > > > > > Thank you very much. > > > > > > Regards, > > > Danny > > > > > > > sd5's disklabel looks pretty empty (duid included), but you already > > know > > that... > > Do you have a backup disklabel, e.g., in /var/backups?
Yes, that's the output: # /dev/rsd5c: type: SCSI disk: SCSI disk label: SR RAID 1C duid: 1c318a61d9aa3255 flags: bytes/sector: 512 sectors/track: 63 tracks/cylinder: 255 sectors/cylinder: 16065 cylinders: 1945331 total sectors: 31251758576 boundstart: 0 boundend: 31251758576 drivedata: 0 16 partitions: # size offset fstype [fsize bsize cpg] c: 31251758576 0 4.2BSD 2048 16384 12960 > > Actually, I'll just quote scan_ffs's manpage: > > 1. Panic. You usually do so anyways, so you might as well > get it over > with. Just don't do anything stupid. Panic away from > your > machine. Then relax, and see if the steps below won't > help you > out. > > 2. Try to find your old disklabel by any other means > possible. This > includes printouts, backups (look in /var/backups/), > screendumps, > and whatever other method you can think of. The more > information > you have, the better your chances are in recovering the > disklabel > of the disk. > > 3. Create a disklabel on the affected disk, which covers the > whole > disk, and has at least one partition which covers the > whole disk. > As the “c” partition usually covers the whole disk > anyways, this > sounds like a good place to start. > > 4. Run scan_ffs over this partition. If you have any > information > about the disklabel which used to exist on the disk, keep > that in > mind while scan_ffs spews out its things. > > 5. Use disklabel(8) to reconstruct the disklabel on the > affected disk, > using all the information you gathered from scan_ffs and > other > sources. > > (Make sure to read the rest of it, though) I will read it. Thanks!
