Hallo Iban,
 
this seems to be a hardware issue
 
 
Input/output error
 
 
just try /make sure.. that you really can read from the disk .. all NSDs from all of its NSD servers
so to say.. its most important, that the NSD is accessible on the primary NSD server.. as long this primary NSD server is up n running
 
either use dd (be carfully ;-)   .. only try to READ   )
e.g.   dd if=/dev/$yourblockdevice bs=4k count=2 | od -xc
 
 
or
mmfsadm test ...(if you are familiar with that   - if not.. feel free, open a problem record.. and we'll guide your through  ..)
 
 
cheers
olaf
 
 
 
 
----- Original message -----
From: Iban Cabrillo <cabri...@ifca.unican.es>
Sent by: gpfsug-discuss-boun...@spectrumscale.org
To: gpfsug-discuss <gpfsug-discuss@spectrumscale.org>
Cc:
Subject: [EXTERNAL] Re: [gpfsug-discuss] Disk in unrecovered state
Date: Tue, Jan 12, 2021 4:59 PM
 
Hi Renar,
   The version we are installed is 5.0.4-3, and the paths to these wrong disks seems to be fine:
  
   [root@gpfs06 ~]# mmlsnsd -m| grep nsd18jbod1
 nsd18jbod1      0A0A00675EE76CF5   /dev/sds        gpfs05.ifca.es           server node
 nsd18jbod1      0A0A00675EE76CF5   /dev/sdby       gpfs06.ifca.es           server node
[root@gpfs06 ~]# mmlsnsd -m| grep nsd19jbod1
 nsd19jbod1      0A0A00665EE76CF6   /dev/sdt        gpfs05.ifca.es           server node
 nsd19jbod1      0A0A00665EE76CF6   /dev/sdaa       gpfs06.ifca.es           server node
[root@gpfs06 ~]# mmlsnsd -m| grep nsd19jbod2
 nsd19jbod2      0A0A00695EE79A12   /dev/sdt        gpfs07.ifca.es           server node
 nsd19jbod2      0A0A00695EE79A12   /dev/sdat       gpfs08.ifca.es           server node
[root@gpfs06 ~]# mmlsnsd -m| grep nsd24jbod2
 nsd24jbod2      0A0A00685EE79749   /dev/sdbn       gpfs07.ifca.es           server node
 nsd24jbod2      0A0A00685EE79749   /dev/sdcg       gpfs08.ifca.es           server node
[root@gpfs06 ~]# mmlsnsd -m| grep nsd57jbod1
 nsd57jbod1      0A0A00665F243CE1   /dev/sdbg       gpfs05.ifca.es           server node
 nsd57jbod1      0A0A00665F243CE1   /dev/sdbx       gpfs06.ifca.es           server node
[root@gpfs06 ~]# mmlsnsd -m| grep nsd61jbod1
 nsd61jbod1      0A0A00665F243CFA   /dev/sdbk       gpfs05.ifca.es           server node
 nsd61jbod1      0A0A00665F243CFA   /dev/sdy        gpfs06.ifca.es           server node
[root@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@gpfs06 ~]# mmchdisk gpfs2 start -d nsd19jbod1
mmnsddiscover:  Attempting to rediscover the disks.  This may take a while ...
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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