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How to Use CA Cloud Storage for System z with NetApp NFS Exports

CA Cloud Storage for System z can use NFS export directories as repositories for Virtual Volume files. The Linux operating system mounts NFS exports as subdirectories of its file system by reading the /etc/fstab configuration file at startup.

To create NFS export directories for use with CA Cloud Storage for System z, use the NetApp OnCommand System Management software. For more information, see http://www.netapp.com.

Follow these steps:

  1. Select the Netapp appliance to begin the configuration.
  2. Select Configuration > Protocols > NFS and enable NFS.
  3. Select Storage > Aggregates and create an aggregate.

    An aggregate is like a large logical DASD device that is created from some number of physical disks drives. You assign disks to the aggregate based on the amount of space that is required to hold your virtual volumes and RAID requirements.

  4. Select Create.

    The user interface wizard guides you through the process of creating the aggregate.

  5. Select Storage > Volumes and create a volume under the aggregate.

    Volumes behave like subdirectories or local partitions. You can mount Volumes to your Linux Server as an NFS export. Volumes can also be replicated to a secondary appliance using NetApp SnapMirror technology.

  6. Select the General tab.
  7. Assign the maximum size of the volume you want to allocate for CA Cloud Storage use and set the volume to Thin Provisioned.
  8. Select the Storage Efficiency tab to enable data deduplicaton and compression.
  9. Select Storage > Exports to create an NFS export to use with CA Cloud Storage.
  10. Use the browse button to select the path to the volume or subdirectory to use with CA Cloud Storage.
  11. Select the security setting for All hosts.
  12. Edit the Export Rule.
  13. Ensure that the Security flavor indicates UNIX.
  14. Select Anonymous Access > Map anonymous users to and assign them to the cacloud group and 326 user ID.
  15. Select Client Permissions > Add client permission and grant root access to the Linux Server running CA Cloud.

    (Optional) You can perform this step later.

  16. Select Data Protection > SnapMirror to add replication.

    Use the SnapMirror Relationship setup wizard to define the source, target, and replication schedule of your netapp volume to a remote Netapp appliance. The SnapMirror is useful for disaster recovery and can also be used to implement bidirectional replication between CA Vtape complexes.

  17. Exit the OnCommand System Manager.
  18. Log in to the Linux system running CA Cloud Storage for System z.
  19. Run the cacloud setup command:
    sudo cacloud setup
    
  20. Select the FSTAB option to map the NFS export to the appropriate mount point subdirectory of Vault_01 used by CA Cloud Storage for System z.

    The following example of an /etc/fstab table entry mounts an NFS export as mp_01:

    ip_address:/vol/cs4z_prod_mp_01 /var/lib/cacloud/vault_01/mp_01 nfs rsize=131072,tcp,nolock,wsize=131072,nfsvers=3,intr,bg 0 0
    
  21. Save your changes to update the FSTAB table.
  22. Reboot the Linux system to execute the FSTAB changes or use the following Linux command to apply the FSTAB changes:
    sudo /sbin/mount -a 
    
  23. Issue the following Linux command to confirm that the proper file system table changes were made:
    df -h