Re: Broken softraid0

On Wed, 2022-09-07 at 21:13 +0200, Danny Koenig wrote:
>
>
> On Wed, 2022-09-07 at 19:24 +0200, Danny Koenig wrote:
> > 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
> >
>
> Restored from /var/backups/disklabel.sd5.current by using "disklabel
> -e
> sd5" as recommended. Sadly this didn't changed anything. Still can't
> mount.
>
> Current state:
>
> root@core-fs:~ => disklabel sd5c         
> # /dev/rsd5c:
> type: SCSI
> disk: SCSI disk
> label: SR RAID 1C
> duid: 2765b6ceb44e92fb
> 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
>
>
> Any suggestions?
>
> Just wondering about the size of 32 TB. Can this be correct? It
> should
> be RAID 1, two disks with each a size of 16 TB.
>

"scan_ffs -l -s -v /dev/sd5c" produced an output:

block 1326893188 id b1a33695,ead695c8 size 2009515704

How to handle these information correctly? What's the next steps?

Thank you very much!

Danny