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Use Power HA to manage NFSv4 with Kerberos 5 to export GPFS filesystems in High Availability environnement

  • 1.  Use Power HA to manage NFSv4 with Kerberos 5 to export GPFS filesystems in High Availability environnement

    Posted Wed October 15, 2014 08:15 PM

    Originally posted by: EricDubé


    I'm working to install and setup this environnement :

       GPFS filesystems to export with NFSv4 using Kerberos 5 authentification.

       I have IBM Kerberos 5 NAS system using IBM LDAP Tivoli Directory Server backend.

       I would like to configure IBM Power HA to have a NFS v4 server in High Availability for exporting my GPFS filesystems (so not a JFS or JFS2 shared volume group in HACMP, but GPFS filesystem).

     

      So right now, my LDAP and Kerberos 5 servers are configured and working well.

      My PowerHA servers and ressource group is configured and working "pretty well".

      I'm able to mount my nfsv4_service and list the nfsv4 mount point.  But when I fail over the 2nd server (from powerha), I'm stuck with Access Denied on my nfsv4 mount point.  I'm not able to list the gpfs filesystems anymore.  But if I come back on the 1st server, I'm able to list my mount point.

      Do anybody configured something like this ?  How to make NFSv4 server using Kerberos 5 authentification in HA environnement, to be able to do maintenance and patch without impact to client ?

      Regards,

      Eric Dubé



  • 2.  Re: Use Power HA to manage NFSv4 with Kerberos 5 to export GPFS filesystems in High Availability environnement

    Posted Fri October 17, 2014 02:57 AM

    Originally posted by: j.gann


    take a look at nfs4 replica servers.

    jg



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