[gpfsug-discuss] Disk in unrecovered state

[Achim Rehor]

Hi Iban, 

given that you have physical access to the disks and they are readable ( i 
see you checked that via dd command) you should mmchdisk start them.
Note: as you have down disks in more than one FG, you will need to be able 
to at least get one good copy of the metadata readable .. in order to be 
able to mmchdisk start a disk.
In that case i would run : mmchdisk   <fs> start -a   (so gpfs can get 
data from all readable disks) 

 
Mit freundlichen Grüßen / Kind regards

Achim Rehor
 
Remote Technical Support Engineer Storage 
IBM Systems Storage Support - EMEA Storage Competence Center (ESCC)
Spectrum Scale / Elastic Storage Server
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gpfsug-discuss-bounces at spectrumscale.org wrote on 12/01/2021 16:59:03:

> From: Iban Cabrillo <cabrillo at ifca.unican.es>
> To: gpfsug-discuss <gpfsug-discuss at spectrumscale.org>
> Date: 12/01/2021 16:59
> Subject: [EXTERNAL] Re: [gpfsug-discuss] Disk in unrecovered state
> Sent by: gpfsug-discuss-bounces at spectrumscale.org
> 
> Hi Renar,
>    The version we are installed is 5.0.4-3, and the paths to these 
> wrong disks seems to be fine:
> 
>    [root at gpfs06 ~]# mmlsnsd -m| grep nsd18jbod1
>  nsd18jbod1      0A0A00675EE76CF5   /dev/sds        gpfs05.ifca.es 
> server node
>  nsd18jbod1      0A0A00675EE76CF5   /dev/sdby       gpfs06.ifca.es 
> server node
> [root at gpfs06 ~]# mmlsnsd -m| grep nsd19jbod1
>  nsd19jbod1      0A0A00665EE76CF6   /dev/sdt        gpfs05.ifca.es 
> server node
>  nsd19jbod1      0A0A00665EE76CF6   /dev/sdaa       gpfs06.ifca.es 
> server node
> [root at gpfs06 ~]# mmlsnsd -m| grep nsd19jbod2
>  nsd19jbod2      0A0A00695EE79A12   /dev/sdt        gpfs07.ifca.es 
> server node
>  nsd19jbod2      0A0A00695EE79A12   /dev/sdat       gpfs08.ifca.es 
> server node
> [root at gpfs06 ~]# mmlsnsd -m| grep nsd24jbod2
>  nsd24jbod2      0A0A00685EE79749   /dev/sdbn       gpfs07.ifca.es 
> server node
>  nsd24jbod2      0A0A00685EE79749   /dev/sdcg       gpfs08.ifca.es 
> server node
> [root at gpfs06 ~]# mmlsnsd -m| grep nsd57jbod1
>  nsd57jbod1      0A0A00665F243CE1   /dev/sdbg       gpfs05.ifca.es 
> server node
>  nsd57jbod1      0A0A00665F243CE1   /dev/sdbx       gpfs06.ifca.es 
> server node
> [root at gpfs06 ~]# mmlsnsd -m| grep nsd61jbod1
>  nsd61jbod1      0A0A00665F243CFA   /dev/sdbk       gpfs05.ifca.es 
> server node
>  nsd61jbod1      0A0A00665F243CFA   /dev/sdy        gpfs06.ifca.es 
> server node
> [root at gpfs06 ~]# mmlsnsd -m| grep nsd71jbod1
>  nsd71jbod1      0A0A00665F243D38   /dev/sdbu       gpfs05.ifca.es 
> server node
>  nsd71jbod1      0A0A00665F243D38   /dev/sdbv       gpfs06.ifca.es 
> server node
> 
> trying to start 19jbod1 again:
> [root at gpfs06 ~]# mmchdisk gpfs2 start -d nsd19jbod1
> mmnsddiscover:  Attempting to rediscover the disks.  This may take 
awhile ... 
> mmnsddiscover:  Finished.
> gpfs06.ifca.es:  Rediscovered nsd server access to nsd19jbod1.
> gpfs05.ifca.es:  Rediscovered nsd server access to nsd19jbod1.
> Failed to open gpfs2.
> Log recovery failed.
> Input/output error
> Initial disk state was updated successfully, but another error may 
> have changed the state again.
> mmchdisk: Command failed. Examine previous error messages to determine 
cause.
> 
> Regards, I
> 
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